Field notes of Frederick W. Schueler: 2006-2007 Mudpuppy Nights in Oxford Mills, Kemptville Creek, North Grenville Township (Oxford-on-Rideau geographic township), United Counties of Leeds and Grenville, Ontario, Canada

This is the ninth year of regular Mudpuppy night outings... Text output, unedited, from the EoBase database, lat/long WGS84 (=NAD83), please report anomalies to bckcdb@istar.ca.

13 October 2006

Canada: Ontario: Grenville County: Oxford-on-Rideau: Bishops Mills General Store. (100m ard homesite), 31B/13, 44.87282N 75.70097W TIME: 1946. AIR TEMP: 7, windy, overcast. OBSERVER: Frederick W. Schueler. fireflylog, departure (departure) (event). natural history, drive. 156947 km, to Mudpuppy Night in Oxford Mills, rain beginning. Rain was intermittantly heavy on the way to Oxford Mills, and NO:Rana seen either on the way in or back.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2003-2033. AIR TEMP: 2, windy, light rain. HABITAT: brown-water creek at limestone flats below old milldam, water 7.5 C. OBSERVER: Frederick W. Schueler, Wes von Papineau, Brian Day, +. 2003/193/g, visit () (event). survey, wade, light. Mudpuppy Night outing, NO:Necturus, NO:Rana seen. Water fairly high, 7 cm below Vantage Point ledge, and very dark brown and moderately foamy -- a big area of low foam on the east-side eddy. There was a big area of sunken Maple leaves on the bottom just above the Bridge on the west side, and the area of vegetated ground on the east side below the dam seems to be expanding. Wes waded throughout, without seeing any Vertebrates, though he'd seen a big Esox lucius (Northern Pike) above the dam before I arrived. The recorded air temperature may be a little low -- it was a wet thermometer on the roof of the car.

We had two visitors: an Oxford Mills girl and her out-of-town Aunt, who seem not to have recieved any of the notices of the event, but to have come just because it was Friday.

(same location) 2003/193/ga, Gyrinidae (Whirligig Beetle) (entomological). many mature, seen. moderate numbers among flooded east side vegetation. But the falling rain made it hard to survey generally for surface Insects.


20 October 2006

moved 10.4 km S.
(Bishops Mills Store) TIME: 1847. AIR TEMP: 0, overcast, calm. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. 156947 km, to Mudpuppy Night in Oxford Mills & Ed Reynolds dinner. About 2 cm of wet snow on the ground.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2005-2048. AIR TEMP: -2, overcast, Beaufort gentle breeze. HABITAT: brown-water creek at limestone flats below old milldam, water 6 C. OBSERVER: Frederick W. Schueler, Joe Sparling. FWS06Oct202005/a, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. After a rainy week, and a slushfall of pancake-sized flakes, and 2 cm of snow remaining on the ground, we didn't know what to expect at Oxford Mills tonight. But I tore myself away from the Brigadoon retirement dinner for Ed Reynolds (2 minutes after dinner had been served at 19h58), and at 20h05 was down at the bridge to meet Joe Sparling.

The water was high (2-3 cm sloshing over the Vantage Point ledge), and dark brown but transparent. It was 6 C, while the air was -2 C, Force 3 breeze, and overcast, just barely not precipitating.

We first checked out above the dam, and watched chunks of vegetation being swept into the spillways, but no animals. Then across the bridge, where we could scan a modest area of the bottom with our lights, but saw no Mudpuppies or other animals.

At the Vantage Point ledge, on the west side, there was no place with a slow enough current for Mudpuppies, and so we worked along the sloshed-into turf on the west shore, scanning the water for life, and seeing a few small Lepomis (Sunfish) sunfish and Rock Bass, about 8 cm long, huddled in little eddies along the banks. There was a modest flock (or, I suppose the collective is 'swirl') of Whirligig Beetles (ca 300) in the little embayment just above the bridge (20h28).

We returned to the road up the embankment, and then crossed the bridge and climbed down to the east side, where the main flow (tending towards the west) left a fairly large area of modest current. We waded around, to depths approaching 80 cm, but saw no Amphibia -- though there were a few more small Sunfish and one 20 cm Rock Bass, and a few 12 cm or so Black Bass, and about another 300 Whirligig Beetles among the grassy patches.

By now (20h48) I'd passed the 'half-hour' I was supposed to be away from the festivities, and an LFACTor, sent down to retrieve me, found Joe leaving the site, and me completing my notes.

(same location) FWS06Oct202005/b, Gyrinidae (Whirligig Beetle) (entomological). 600ca mature, seen. moderate numbers among flooded east & west side vegetation.

(same location) FWS06Oct202005/c, Lepomis cf macrochirus (Bluegill) (fish). 8ca juvenile, seen. ca 8 cm TL, huddled in eddies along E & W shores.

(same location) FWS06Oct202005/d, Ambloplites rupestris (Rock Bass) (fish). 4 juvenile, adult, seen. 3 ca 8 cm TL, 1 ca 20 cm, in eddies along E & W shores.

(same location) FWS06Oct202005/e, Micropterus cf salmoides (Largemouth Bass) (fish). 3 adult, seen. ca 12 cm, in eddies along E shores.


24 October 2006

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 1048-. AIR TEMP: 3 ca, light rain, calm. HABITAT: brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler. 2006/199/b, visit () (event). natural history, walk. 10-15 cm water over Vantage Point Ledge. Masses of foam tucked up with drift on both east and west sides below the dam, but not up to the level of the spring "Helisoma Ledge" on the east side of the spillway.


27 October 2006

moved 10.4 km S.
(Bishops Mills Store) TIME: 2005. AIR TEMP: 4, overcast, breezy. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. focuslog, departure (departure) (event). natural history, drive. 177763 km, to Mudpuppy Night in Oxford Mills.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2005-2052. AIR TEMP: 3.5, overcast, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 5 C. OBSERVER: Frederick W. Schueler, Joe Sparling, Jalen Bartlett. 2006/200/d, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. Water! Once again that was the theme, roaring though all three spillways of the dam, a standing wave 60 cm in each race, 30 cm or so pouring over the Vantage Point ledge, and swirlling and sloshing all around the basin. The water was 3 C and dark with dissolved material, but not cloudly with particles. Above the dam we watched Poplar leaves, brilliant in our lights, being swept into the spillways.

We saw, needless to say, NO:Necturus, no fish, and NO:Gyrinidae. Joe Sparling and his grandson Jalen Bartlett waded about on the east side -- the only few square metres where the water was fairly placid, but saw no animals (my lights and boots had been accidently carried off to the Eastern Townships, and were only delivered by Aleta halfway through our visit to Oxford Mills). With more rain forecast for the weekend, and transpiration having passed with the foliage, the water levels may well continue to rise towards spring levels, and there may begin to be useful accumulations of shells along the banks of the creeks before we see any Mudpuppies.

(air & water temperatures corrected - Dec 2006).


3 November 2006

moved 10.5 km S.
Canada: Ontario: Grenville County: Bishops Mills:S side(Schuelers). (100m ard homesite), 44.87156N 75.70095W TIME: 1958. AIR TEMP: -2.5, clear, calm. ROUTE: rural village, shallow soil limestone plain. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). nat.hist., drive. 184107 km, to Mudpuppy Night, bright Moon.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2004-2031. AIR TEMP: -2, clear, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 3.9 C. OBSERVER: Frederick W. Schueler, Joe Sparling, Aleta Karstad Schueler. FWS06Nov032004/a, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. Water clear and brown, 30 cm above the Vantage Point Ledge, but surging in waves. The water is white and leaping down the centre of the creek, most of the way to the bridge, and half-covered with rafts of glittering bubbles --- there's not lots of foam. Water 39 F (3.9 C) according to Joe's thermometer.

Below the bridge the water was too deep to see the bottom clearly, and when looking into the deeper spots the water seemed a little turbid. No bottom could be seen from the bridge, there's modest foam on the west side.

Above the dam the brilliant Moon gleamed over the pool -- no Animals seen there. the water was very clear, and the Myriophyllum (Water Milfoil) waved gently a half metre below the surface, its leaves covered with fine algae so that the branches looked like solid cylinders.


10 November 2006

moved 10.5 km S.
(at home) TIME: 1959. AIR TEMP: 2.5, overcast, calm. OBSERVER: Frederick W. Schueler, Jennifer Helene Schueler. 2006/208/-, departure (departure) (event). nat.hist., drive. in Corey's van to Oxford Mills for Mudpuppy Night. After what's coming seem to be an inevitable pre-departure delay (Cat responds to discipline by panicking and smashing heirloom bowl, Jennie oblivious to clock in unexpected building, then confuses herself with extreme Cat discipline). We reached Oxford Mills to find Brian Day and Joe Sparling patiently awaiting us.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2016-2055. AIR TEMP: 3, overcast, calm. HABITAT: brown-water creek at limestone flats below old milldam, water clear, 8 C. OBSERVER: Frederick W. Schueler, Joe Sparling, Brian Day, Jennifer Helene Schueler. 2006/208/e, Necturus maculosus (Mudpuppy) (herp). 3 adult, seen. large ads seen in Mudpuppy Night outing. From the bridge, we saw one large adult crawling among rocks on the east side above the bridge, and one among rocks in mid-stream below the bridge.

On the west side there was "only" 15 cm of water sloshing over the Vantage Point ledge, and we saw no Mudpuppies by wading the west side out into the centre of the deep eddy, though there was one 15 cm Centrarchid (Lepomis or Micropterus) there. Wading into the east side, we found a third large individual below the drop-off into the deeper water downstream of the flats. None were seen, and no fish, in the grassy east-side eddy. Joe and I waded, while Brian scanned the bottom from shore. All three mudpuppies that we saw were around 30 cm total length.

After a month of Mudpuppy-free Mudpuppy Nights, we've finally got observations of our target species to report, but while we readied our lights and boots, and headed across the bridge, we were fully sure that the water was just about as high as last week, and that we'd see no Mudpuppies.

From the bridge, we could make them out on the bottom. Watching the bottom in turbulance takes patience, since you've got to wait for passing patches of smooth water to get a glimpse of the bottom, but in both cases we were at first attracted by the pinkish glow that shone even through turbulance, and then saw gills and legs, and then saw them move away from the beams of our lights.

"So the season has begun, and were there not 30 mm of rain forecast for tomorrow, we'd invite all and sundry to come and join in the fun. But with such rain forecast, we can't predict what the water levels will be next week, or how the Mudpuppies will respond. "


13 November 2006

moved 0.03 km E.
Canada: Ontario: Grenville County: Kemptville Creek, just below Oxford Mills Dam. (50m waypoint), 44.96481N 75.67827W TIME: 1607-1616. AIR TEMP: 7 ca, overcast, breezy. HABITAT: high brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler. 2006/209/b, Helisoma campanulatum (Bell-mouth Ramshorn) (Mollusca). abundant shell, drift, specimen. washed up on east shore Helisoma Ledge. There's ca 20 cm of brown water over the Vantage Point Ledge, and blankets of foam tucked in along the dam on both east and west sides. The water has fallen below it's maximum level, and this deposit of shells was in little heaps among drifts of Fraxinus (Ash) fruits and other vegetation. The "Helisoma Ledge" corner is littered with glass and plastic bottles, or which I salvaged an armful for recycling (fairly dousing myself in diluted but over-age beer in the process).

JHS remained in the van.


17 November 2006

moved 10.5 km S.
(at home) TIME: 1952. AIR TEMP: 2, clear, calm. ROUTE: rural village, shallow soil limestone plain. OBSERVER: Frederick W. Schueler. villagerlog, departure (departure) (event). nat.hist., drive. 186610 km, to Mudpuppy Night.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2010-2018. AIR TEMP: 2 ca, clear, calm. HABITAT: high brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Joe Sparling, Brian Day. 2006/211/c, visit () (event). survey, light. NO:Necturus in Mudpuppy Night outing. More than 30 cm of murky-turbid water over the Vantage Point ledge, the creek is the highest it's been all fall.


24 November 2006

moved 10.4 km S.
(Bishops Mills Store) TIME: 1937. AIR TEMP: -3, clear, calm. ROUTE: gravel/hedge/paved area around store building in rural village on limestone plain. OBSERVER: Frederick W. Schueler. fireflylog, departure (departure) (event). natural history, drive. 159058 km, to Mudpuppy Night in Oxford Mills. As Aleta brought Robert Forsyth from his Species Assessment Meetings to Oxford Mills for Mudpuppy Night, I scampered around trying to make the place look less like a testing ground for the middening of unwanted scarcely-museum-related materials, piled a bunch of gear into the little Firefly micro-car, and managed to make Oxford Mills before the 20h00 deadline.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2015-2105. AIR TEMP: -1, clear, calm. HABITAT: brown-water creek at limestone flats below old milldam, water clear, 2 C. OBSERVER: Frederick W. Schueler, Brian Day, Wes von Papineau, Matt Keevil, +. 2006/217/fa, Necturus maculosus (Mudpuppy) (herp). 1-2 adult, seen. large ads seen in Mudpuppy Night outing. Matt waded around the deep east eddy, finding either two large Mudpuppies, or else the same one twice. He tried to net it up to show to the crowd (who had now retired to the Brigadoon), but didn't manage to dipnet up 'either' of them. After exhausting the battery on both Wes' and Brian's lights, he returned to shore, and the whole party retired to the Brigadoon.

The water was high and clear, 25 cm over the Vantage Point ledge, with small blankets of foam in some of the corners along the shore. The air was -1 C, clear and calm, while the water was 2 C. From the bridge we could see only a bit of the bottom, and it harboured no Mudpuppies, and likewise the west side, as far as we could see from shore, was too turbulent to allow any to be there.

(same location) 2006/217/fb, Ondatra zibethicus (Muskrat) (Mammal). 1 adult, seen. on ledge below dam, swam into strong current. When we went across to the east side, and after a look at the water, I went to check the "Helisoma Ledge" east of the spillway. There was one pile of moderately shell-rich meaterial, but looking down from the top of the dam we also saw a Muskrat on the ledge at the base of the dam, who didn't flee from the lights, but scratched its chin, and made climbing movements up the face of the dam, as if it had been trapped there while moving upstream. After a while it plunged into the blanket of foam in the eddy beside the ledge, and swam around a bit, climbed out on the bank, and then went into the water and into the main current. We lost sight of it about 10 m downstream.

(same location) OBSERVER: Matt Keevil, Frederick W. Schueler, Brian Day, Wes von Papineau, +. 2006/217/fc, Ambloplites rupestris (Rock Bass) (fish). 4 adult, seen. sluggish in grassy area under overhanging trees along E shore.


8 December 2006

moved 10.5 km S.
(at home) TIME: 1949. AIR TEMP: -9, overcast, breezy. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. villagerlog, departure (departure) (event). nat.hist., drive. 189620 km, to Mudpuppy Night.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2000-2035. AIR TEMP: -6, overcast, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 0.3 C. OBSERVER: Frederick W. Schueler, Joe Sparling, Jalen Bartlett. 2006/211/d, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. From the bridge, could see only a few square matres of bottom, and on the west side there 35 cm of water sloshing over the Vantage Point ledge, and the west side eddy was a steady torrent, going north. Wading into the east side, we found the water as deep as it's ever been when we've waded, and between depth and current we didn't see any Mudpuppies.

The pond above the dam is solidly covered with clear ice. The water was slightly turbid with brown particles, and the shores were shouldered with ice, with the lower steplike shelves covered with a layer of slush. There were 1 m floes in the east side inner eddy, a flock of 10 cm 'buns' of frozen foam in the west side eddy just below the dam, and flakes of ice in the current and eddies elsewhere.


15 December 2006

moved 10.5 km S.
(at home) TIME: 2022. AIR TEMP: 4, drizzle, breezy. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. villagerlog, departure (departure) (event). nat.hist., drive. 190679 km, to Mudpuppy Night. Wes von Papineau, who'd delvered some books from Ottawa for the show, said it was pouring, and so I put off going to Mudpuppy Night while we talked to him about recent events (food poisoning in Montreal, viper/land mine discrimination in Afganhistan), which meant that Brian and Joe were left standing by the bridge for a while before I reached Oxford Mills (evidently there was no heavy rain here). They'd told AKS they were coming, but she hadn't relayed the data to me.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2034-2100. AIR TEMP: 5, overcast, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 2.3 C. OBSERVER: Frederick W. Schueler, Joe Sparling, Jalen Bartlett, Brian Day. FWS06Dec152034/a, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. The others were here before I arrived. From the bridge, one could see only a few square matres of bottom, and the water was steely-grey, though clear where shallower. On the west side there was 20 cm of water sloshing over the Vantage Point ledge, and the west side eddy was a steady torrent, going north, with a sheet of rotten ice along the shore at the higher level the stream had been at when it was colder. We walked the shores and waded both the east and west sides and saw NO:Necturus, nor any other Animals.

The pond above the dam is clear of ice.


23 December 2006

moved 10.5 km S.
(at home) TIME: 2116. AIR TEMP: 5.5, overcast, Beaufort moderate breeze. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). nat.hist., drive. 191562 km, to Mudpuppy Night & plate errends in Kemptville. Yestereven having been all slippery with freezing rain, we didn't go out to Oxford Mills, but tonight FWS stopped off there as AKS took a CD from which JHS had extracted the image for a portrait plate back to its owner in Kemptville.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2128-2156. AIR TEMP: 5, overcast, Beaufort moderate breeze. HABITAT: high brown-water creek at limestone flats below old milldam, water 1.5 C. OBSERVER: Frederick W. Schueler. 2006/225/e, Necturus maculosus (Mudpuppy) (herp). adult, light, wade. ca 25 cm TL, on flat bedrock in upstream arm of E-side eddy. When I reached the bridge, there seemed to be a shining white Muskrat swimming rapidly in the eddy on the west side above the bridge, but light and a few seconds demolished it into a clump of foam momentarily coalesced by the eddy. No Mudpuppies were seen from bridge, nor from the Vantage Point, nor in the relatively calm centre of the west side eddy, nor in the embayment just above the bridge.

On the east side, things didn't look any better, until I saw this one barely clinging to the bottom of the flat bedrock in the upstream arm of the east side eddy, just about where Matt saw his on 24 November (2006/217/fa). I waded the rest of the east side without seeing any more.

The water was high but clear, with 10-20 cm surging over the Vantage Point Ledge. There were only a couple of 1-metre patches of residual ice on the banks on the west side. Above the dam there was open water with submerged shelves of clear ice extending out a couple of metres from the marshy shores.

(same location) 2006/225/f, Helisoma campanulatum (Bell-mouth Ramshorn) (Mollusca). abundant shell, drift, specimen. recent deposits just above water level on"Helisoma Ledge".

(same location) 2006/225/g, Gyraulus () (Mollusca). abundant shell, drift, specimen. older deposits 10-15 cm above water level on"Helisoma Ledge". The site was enhanced by a smashed computer monitor, and heaps of drifted shells, mostly Helisoma campanulatum, as usual, but these higher (older) deposits finer-grained with a larger admixture of Gyraulus that I ever recall seeing here (of course this is my first late-December sample).


27 December 2006

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 1928-1948. AIR TEMP: -12, clear, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 0 C. OBSERVER: Frederick W. Schueler, Doug & Laura Thompson, Pascal Lambert. 2006/227/a, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. Doug Thompson wrote: "Fred, the consensus here is that a special mudpuppy excursion is do-able from our perspective; my daughter and her boyfriend from Wpg are leaving on Thursday for Montreal and then NYC, so Friday evening is not do-able. How would tomorrow or Wednesday work for you? Do you have a preference?" -- so they picked me up at the Store, and ferried me to and from Oxford Mills, while AKS & JHS went to meeting in the Villager.

Water clear, surging 20 cm over the Vantage Point Ledge, FWS waded the east and west sides, but NO:Animalia were seen. Strikingly surf-like waves occasionally broke on the ice-tipped grasses along the east shore -- there are flakes and little pans of ice in the small eddies around the margins of the creek, but we didn't check above the dam to see if it has refrozen there.


28 December 2006

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2100ca. AIR TEMP: -11 ca, clear, calm. OBSERVER: Frederick W. Schueler. FWS06Dec282100/a, visit () (event). natural history, light. water ca 20 cm above Vantage Point Ledge, steaming on spillways. Pond solidly frozen above dam, with new, mostly smooth, ice. Water not very much, if at all, lower than it was yesterday.

(same location) HABITAT: marshy shore of rozen-over brown-water creek above old milldam. FWS06Dec282100/b, Ondatra zibethicus (Muskrat) (Mammal). 1 adult, tracks. trackway between frozen pond & marshy shore on W side.


29 December 2006

moved 10.4 km S.
(Bishops Mills Store) TIME: 1950. AIR TEMP: -10.5, light overcast, calm. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. 192034 km, to Oxford Mills for Mudpuppy Night.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2002-2035. AIR TEMP: -9, overcast, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 0 C. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Brian Day, Joe Sparling, Jalen Bartlett. 2006/227/b, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing with many lights. Water grey with particles, 20 cm over the Vantage Point Ledge. Brian, Joe, & Jalen waded the east and west sides, but NO:Animalia were seen. The waves were less striking than on Wednesday (2006/227/a). There were fields of ice-knobs on the grass along the east shore, flakes and little pans of ice in the small eddies around the margins of the creek, and shoulders of rough ice building up on the shores, but with no ice on the surface of the water (except about a square metre near the Vantage Point).

The water shot flatly out from the three spillways, with the walls of the spillways bearded with ice. The pond above the dam is frozen.

(same location) 2006/227/ba, Homo sapiens (Human People) (Mammal). 1 adult, female, drive. officer in OPP vehicle asked about Mudpuppy Night. . . . for the first police attention we've had since we began Mudpuppy Night in 1998, providing a successful implementation of the key herpetological rule: "remember to turn off your headlamp when discussing your activities with a police officer. "


5 January 2007

moved 10.4 km S.
(Bishops Mills Store) TIME: 1953. AIR TEMP: 9, overcast, calm. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. 192301 km, to Oxford Mills for Mudpuppy Night.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2016-2043. AIR TEMP: 8, overcast, calm, foggy. HABITAT: high brown-water creek at limestone flats below old milldam, water 2 C. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Brian Day, Matt Keevil. 2007/002/d, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. An intrepid crew faced fog, high temperatures, high water and a closed hostelry at Oxford Mills tonight,
to not find any Mudpuppies in the swirling water (15 cm surging over the Vantage Point Ledge).

The air was 8 C, the water 2 C, and we waded the west side and Matt waded the east side: water quite clear, but NO:Animalia were seen. There was a rotten residue of the ice shoulders on the wast bank, and a 2 m-wide slab lodged agains the shore above the dam on the west side, but that was the only ice present.

The Brigadoon being closed for their after-New Years break, we retired to the Tim Hortons in Kemptville to drink coffee, dissect the personalities of certain co-workers, plan nutrient management for Limerick Forest, and lament the dishonesty of certain elected officials.

(same location) 2007/002/da, Mollusca () (Mollusca). abundant shell, drift, specimen. diverse snails from Helisoma ledge below spillways on W side. Below the dam on the east side, some frustrated soul had dropped a large-size computer monitor onto the rocks, and we hefted it up over the wall, and also gathered a considerable number of recyclable bottles -- as well as a sample of deliciously diverse snails that's been washed up by the high and open water.


12 January 2007

moved 10.5 km S.
(at home) TIME: 1951. AIR TEMP: 4, calm, drizzle. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. 192381 km, to Mudpuppy Night in Oxford Mills.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2003-2035. AIR TEMP: 4.8, overcast, calm. HABITAT: high brown-water creek at limestone flats below old milldam, water 0.7 C. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Brian Day, Matt Keevil, Joe Sparling. 2007/005/a, visit () (event). survey, light, wade. NO:Necturus in Mudpuppy Night outing. The water was clear and sloshing 15 cm over the Vantage Point Ledge. We waded the east and west sides, and scanned the bottom from the bridge, as in recent weeks, finding only the Crayfish and frog noted.

There was a rotten 15 cm shoulder of ice along the west shore, and rotten shelves of ice mostly covering the pond above the dam.

(same location) 2007/005/aa, Rana pipiens (Leopard Frog) (herp). 1 adult, male, dead, dipnetted. fairly freshly dead, in grassy E-side flats near shore. NUMBER/COLOUR/HEAD_SPOTS/SEX/SVL/TIBIA
1)?, 111, m thumb, 58.5, 29.9, left pes gnawed off apparently post-mortem

(same location) 2007/005/ab, Orconectes virilis (Northern Crayfish) (Crayfish). 1 adult, male, Form II, dipnetted. in deep E-side flats, 41 mm carapace. Held in captivity.

(same location) TIME: 2035-2045. AIR TEMP: 4.8, overcast, calm. 2007/005/ac, Mollusca () (Mollusca). abundant shell, drift, specimen. chaffy-est crest of piled shells on E-side Helisoma ledge. Matt waded around looking for mmore creatures, while FWS gathered this maximally non-Helisoma sample of drift from partially frozen piles below the dam.


19 January 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1948. AIR TEMP: -2.5, snowing, Beaufort light breeze. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. 193005 km, to Mudpuppy Night in Oxford Mills.

(same location) TIME: 2005-2052. AIR TEMP: -3, overcast, Beaufort gentle breeze. HABITAT: brown-water creek at limestone flats below old milldam, water 0.4 C. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Matt Keevil, Joe Sparling, Jalen Bartlett. 2007/006/c, visit () (event). survey, seen, wade. Mudpuppy Night outing with lights & wading. It's never been so late in the year when the water level has gotten low enough that Mudpuppies can exploit the resources below the dam at Oxford Mills, but this night the season's activity finally started.

The spillways were about half closed in by solid white ice sculpture, and ice was continuous above the dam, and covered with untracked snow except for a 10 m circle of grey ice in the centre. The white water extends about 7-8 m downstream from the spillways, the ripples in mid-stream seen from the east bank railing, looked like wood-grain and saw cut marks as waves crossed the ripples along this side of the white water.

The water was extremely clear, and only 5 cm was surging over the Vantage Point ledge, but it wasn't freezing, just developing icicles on the undersides of the 1-2 m wide overhanging ledges of ice 10 cm or so above the water, scalloped out onto rocks and surrounded by "marshmallow-icing" snow. Two thermometers corroborated this by reading about half a degree and 0.4 degrees above zero.

We saw 2 Mudpuppies from the bridge, and then a total of 6 when we were wading, of which we caught 4. Most were small, but one was so large that Aleta insisted it's the largest one we've ever seen, and brought it home to measure and photograph. We took the captives up to the Brigadoon in a bucket, and astonished some of the patrons and staff. No other animals seen.

(same location) 2007/006/ca, Necturus maculosus (Mudpuppy) (herp). 9 adult, seen, dipnetted, captured, photo. 2 seen from bridge, 2 W side, 5 E side of stream. We saw 2 Mudpuppies from the bridge, and then a total of 7 when we were wading, of which we caught 4. Most were small, but one was so large that Aleta insisted it's the largest one we've ever seen, and brought it home to measure and photograph.

1 small ad above bridge on the E side
1 small ad below bridge at midspan
1 medium-small ad under ledge in W side eddy
1 medium ad at ledge at downstream end W side flats
1 small & 1 medium ad on E side in eddy under trees
2 right at E bridge abutment, 1 m deep
1 large (26.5 cm) captured near shore on E side flats

Aleta photographed the 4 captives in the sink, and they were relased about 18h00 20 Jan.


25 January 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1930. AIR TEMP: -20 ca, clear, Beaufort light air. HABITAT: brown-water creek at limestone flats below old milldam. OBSERVER: Aleta Karstad Schueler. AKS07Jan251930/a, Necturus maculosus (Mudpuppy) (herp). 1 adult, seen, light. small, seen from bridge at NE side, no wading. The water is crystal clear, and the Vantage Point ledge is only under 4 or 5 cm. now. The dropping water level has left an air space beneath the icy shelves of the shore. On my brief stop I saw one small Mudpuppy from the bridge, on the north east side. There are whisps of mist rising from the water below the dam, child-sized ghosts that rush over toward the east bank and rise up together to dissipate at about two metres into the cold dry air under the black starry sky. I saw the trackway of a small Mammal with close-set pairs of footprints about 6 cm apart and a sharply-defined tail drag, running in the fluffy snow from the trunk of one creekside bush to another several metres away under the trees - could it be a Mole? The tracks look fresh, as if they were made during the past couple of days.

(same location) AKS07Jan251930/b, Rana cf clamitans (Green Frog) (herp). 1 adult, seen, light. seen from bridge, below bridge in midstream.


26 January 2007

moved 10.5 km S.
(at home) TIME: 1955. AIR TEMP: -24, clear, calm. OBSERVER: Frederick W. Schueler, Matt Keevil. 2007/009/-, departure (departure) (event). natural history, drive. in Matt's Jeep to Mudpuppy Night in Oxford Mills. . . . after diverse and vexacious delays.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2010-2045. AIR TEMP: -24.5, clear, calm. HABITAT: freezing high brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Matt G. Keevil, Joe Sparling & Jalen, Paul Goulet, Bev & Don Wigney, ++. 2007/009/a, Necturus maculosus (Mudpuppy) (herp). 38ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights, wading, & photography. One was seen from the bridge before I arrived; 7, mostly small on the W side flats (none seen from Vantage Point) mostly along shore in floating beds of ice crystals and little pans; about 25, both large and small, on the east side flats; 2 up near the spillway; and 3 exposed when a 2 x 8 m floating slab of grey-slushy ice was pushed out of the east side calm spot, under the trees, and out into the current.

The water was steaming, since it was so cold and there was no overall ice cover, just ledges of ice 2-3 m out from the banks. The water was very clear, though fog often obscured the view of the Mudpuppies. The shore end of the Vantage Point ledge is now thickly shouldered with ice, and the exposed rock is under about 5 cm of water pouring over it, with the rock about 5 cm above the level of the water below it. The current from the spillways is slanted over towards the west side, so there's no calm central eddy on the west side, but big areas of moderate current on the east side, where the Mudpuppies were lined up on the bottom as if it finally really was January: the air temperature is 29 C colder than it was 2 weeks ago!

Bev & Don Wigney brought aquaria and cameras, to take pictures, which Bev has posted at her blog as http://magickcanoe. com/blog/2007/01/27/another-mudpuppy-night-at-oxford-mills/

The pond above the dam is solidly frozen over, and there's substantial ice on the spillways, though we didn't take proper notes on the spillways.


2 February 2007

moved 10.5 km S.
(at home) TIME: 1949. AIR TEMP: -2.5, snowing, calm. OBSERVER: Frederick W., Aleta Karstad, & Jennifer H. Schueler, Rory Tanner. villagerlog, departure (departure) (event). natural history, drive. 194419 km, to Mudpuppy Night in Oxford Mills.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2004-2055,2322. AIR TEMP: -3.5, snowing, Beaufort gentle breeze. HABITAT: freezing high brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Matt G. Keevil, Brian Day, Henri & Chantel Vandette, Joe Sparling & Jalen, +. 2007/010/da, Necturus maculosus (Mudpuppy) (herp). 91 adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights, wading, & photography. Conditions were excellent tonight with (finally!) regular winter water levels (the Vantage Point Ledge 'somewhat' above the water level below it, but mostly covered by ice) and, and as a heritage of the previous high water, very little ice cover, though the spillways were all completely sheathed in ice. The water was quite clear, though perhaps a little more turbid, with brown, than the previous couple of weeks. The current was deflected eastward, expanding the west-side eddy, and much reducing the eddy over the east-side flats. Additionally, the air was nice and warm, though snowing and a bit windy at first.

We saw one large individual just below the bridge, in mid-stream, heading downstream, 7 from the Vantage Point Ledge, 26 in the West-side eddy, 49 in wading across the mid-stream current (for the first time this year), and 6 along the east-side flats. These were counts in a quick swing by FWS, and we didn't increase the counts as we entered other patches of the stream, except for two that MGK saw under a floating slab of slushy ice, very similar to that we'd pushed off the eastside eddy under the trees last week -- the bottom there was densely dotted with Trichoptera larvae. Large and small individuals were about equally represented.

This total breaks the old record of 80, and was a considerable spectacle: the west-side eddy looked like scraps of spaghetti on a plate, the ranks in mid-stream were strictly lined up as they struggled, and individuals caulked under stones and ledges throughout (though none up under the spillway ledge).

After the rest of the party had joined the exhausted Aleta & Jennie in the Brigadoon, Cheryl Doran and her party arrived (having overshot and wound up at the BMNHC), and FWS & MGK caught a large and small Mudpuppy for them to admire in the bucket. Very few were to be seen at this time, having been disturbed by all the wading about, but when we brought the captives back to release at 23h22, the ranks had re-formed and Cheryl's kids saw many of them from the east shore.

(same location) OBSERVER: Frederick W. Schueler, Matt G. Keevil, Joe Sparling. 2007/010/db, Ambloplites rupestris (Rock Bass) (fish). 1 adult, seen. ca 12 cm TL, in midstream, slow-moving, colour pattern blotchy.


3 February 2007

moved 10.5 km S.
(at home) TIME: 1950ca. AIR TEMP: -9, overcast, breezy. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. 194445 km, to supplementary Mudpuppy Night in Oxford Mills. Subject: RE: Dear Fred and Aleta. . . .
Date: Mon, 11 Dec 2006 18:24:28 -0500
From: "Steve Marks" <cerastes at nexicom. net>

Since you put it that way, I'll pick February 3 road. The same weekend you got 74 animals just last year. . . would that be good for you? -- Steve


Jr Herp Club <jrherp at raysreptiles. com> wrote:
Date: Fri, 02 Feb 2007 12:08:25 -0500
From: Jr Herp Club <jrherp at raysreptiles. com>
To: undisclosed-recipients:;
Subject: Little Ray's Reptile Zoo - Mudpuppy Night

Hello everyone, Just wanted to re-send a quick note about our “Mudpuppy tour” we are holding tomorrow (Saturday, Feb 3 road ) evening, and to apologize for the lack of information in that section of our newsletter.

Saturday evening, we will be meeting here at the zoo, and then car pooling out to Oxford Mills, just outside of Kemptville, for around 8 pm. There we will be 'hunting' for mudpuppies- large aquatic salamanders that are the most active during the frigid temperatures of the winter, rather than spring or summer, and Oxford Mills boasts the largest population of these critters in the country. Pretty cool eh? Wait til you see them in person! Last week we went out and saw 38 humungous salamanders in about 20 minutes time, and are expecting to see upwards of 80 this week. They are easy to see as they collect up near the dam where the water is unfrozen, shallow and very clear. We sometimes see hibernating turtles and frogs as well, and last year Little Ray scooped up a pike in my net with his Grizzly Bear type reflexes. You'll need:

-Warm Clothing
-Rubber boots
-extra pair of socks, in case of a soaker
-high powered flashlight

Little Ray will be running the tour himself, and is truly the coolest thing to do with your children in the winter. It is open to anyone and everyone who would like to attend (not just members), and there is no fee. We'll probably wrap up at the creek around 9 pm, and everyone is invited to join us at the Brigadoon to warm up with some hot chocolate and dessert afterward. I realize that this is after many children's bedtimes but this is an incredible opportunity to see what I consider to be the most spectacular animal sighting possible in Ontario if not all of Canada. We will be doing this again in a couple weeks but if the weather gets warm we may not see anymore. They are there now in droves! Come if you can -- Hope to see you there, Sheri - Little Ray's Reptile Zoo

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2004-2111. AIR TEMP: -8.5, snowing, Beaufort light breeze. HABITAT: freezing high brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Paul Goulet, Steve Marks, +++. 2007/011/aa, Necturus maculosus (Mudpuppy) (herp). 90ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights, wading, & photography. Steve Marks' party of 8 included, Daniel Hoops, Kristen Martyn, Jason Sharpe, Scott Smithers, Derek Ireton, Kim Heaphy, and Nicole La Barre. A local family dipnetting Mudpuppies into a bucket to examine.

Conditions were much the same as last night, except for the human hordes on the banks, though it was somewhat colder and snowing, with snow accumulating in the water as panels of slush.

Below the bridge, in midstream, we saw a very large Mudpuppy wrestling with a large living Rana clamitans (Green Frog), and in the west-side eddy one had a Cottus (Cottus sp.) in its mouth. Many were snuggled down in the moss beds in midstream, which we're now seeing for the first time this year.

After 23h15, Steve Mark's party checked the site again and counted 60 adults, of special note was one juvenile at approximately 11 cm TL.

(same location) 2007/011/ab, Rana clamitans (Green Frog) (herp). 1 adult, prey of predator, seen, photo. large, in mouth of large Necturus in midstream below bridge. Photographed by Paul Goulet. Apparently the same frog seen on the bottom a week later by Paul Goulet, as if too big for any Necturus to swallow.

(same location) 2007/011/ac, Cottus (Cottus sp.) (fish). 1 adult, prey of predator, seen, photo. in mouth of Necturus in west-side eddy. Photographed by Paul Goulet.

(same location) 2007/011/ad, Rana pipiens (Leopard Frog) (herp). 1 adult, seen. near shore under stone in west side bay just above bridge.


8 February 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1842-1940. AIR TEMP: -10 ca, light overcast, windy, snowing. HABITAT: freezing-over brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Jay Tousaw, Oxford Mills Cubs group. 2007/012/a, Necturus maculosus (Mudpuppy) (herp). 80ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights & wading, all sizes. The count is very approximate, from wading once back and forth across the main current, Four were visible from the Vantage Point; there's some caulking into cracks, there's not much of a W-side eddy.

The spillways are solidly sheathed. Sheets of ice are spreading across the open water, but there's still 4 m-wide open water below the bridge, but NO:Necturus seen there.


9 February 2007

moved 10.5 km S.
(at home) TIME: 1955. AIR TEMP: -14, clear, calm. OBSERVER: Aleta Karstad Schueler. villagerlog, departure (departure) (event). natural history, drive. ?km, to Mudpuppy Night in Oxford Mills. Along with Dave, Carolyn, & Dawn Seburn, Matt Keevil, and JHS who had celebrated a Darwin Day phylum feast with us for supper. Fred had felt weak and tooth-achey, so didn't participate in either the supper or the outing.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2007-2110ca. AIR TEMP: -16 ca, clear. HABITAT: freezing brown-water creek at limestone flats below old milldam. OBSERVER: Aleta Karstad Schueler, Jennifer Helene Schueler, Matt G. Keevil, Francis R.Cook, Seburns, J.Rowell, G.Hutton, V.Kirkwood, ++. AKS07Feb092007/a, Necturus maculosus (Mudpuppy) (herp). 120ca adult, seen, dipnetted. seen in Mudpuppy Night outing with lights & wading. Ice free for 1-2 metres wide on downstream side of bridge, with complete ice cover for about 6 metres upstream. A u-shaped cluster of round ice pans crowded against the edge of the ice. The open water below the dam is very broad across, with relatively narrow ice ledges on either bank. Ice was resting on the rock along the west side. Valerie Kirkwood saw two small individuals from the bridge, looking downstream. We saw about 80 Mudpuppies along the west side, with lots of them right along shore as soon as we came down with the lights. Matt and Greg counted about 40 Mudpuppies along the east side, about 9 of them wedged in at the sheltered side of the ledge near the east side of the dam. There were four hanging on between the two ice-free spillways. Total count is 120. Temp at departure from Brigadoon, 22h30, is -18 C, sky still clear.

Francis and Joyce Cook brought Jeff Rowell from Toronto and Steve Marmura from Kingston. Greg Hutton came, and we had had Matt and Dave, Carolyn, & Dawn Seburn and Matt Keevil who had celebrated a Darwin Day phylum feast with us for supper.

(same location) AKS07Feb092007/b, Rana pipiens (Leopard Frog) (herp). 4 adult, under cover, seen, dipnetted. clustered under flat rock close to the west bank. Matt lifted the rock after he had seen something just under the edge.


16 February 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1128. AIR TEMP: -5 ca, clear, hazy, breezy. HABITAT: freezing-over brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. 2007/012/c, visit () (event). natural history, seen. water shallow, with gorgeously scalloped ice edges. . . . encroaching on the water from all directions. The water seemed a bit murky below the spillways, but that may have been surface glare.

moved 10.4 km S.
(Bishops Mills Store) TIME: 1946. AIR TEMP: -6, clear, breezy. ROUTE: Co Road 18. OBSERVER: Jennifer Helene Schueler, Frederick W. Schueler. villagerlog, departure (departure) (event). personal/nat.hist., drive. 196327 km, to Oxford Mills for Mudpuppy Night. Minus six seems about as balmy as it's possible for the air to be, after the past weeks. Aleta and Rory stayed home.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2002-2055. AIR TEMP: -5 ca, clear, breezy. HABITAT: freezing-over brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Jennifer Helene Schueler, Brian Day, Wes von Papineau, Don & Bev Wigney, ++. 2007/013/aa, Necturus maculosus (Mudpuppy) (herp). 128 adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights & wading. Wes brought Dr. Jen Rowland of NDHQ's NDHQ's Directorate of the Environment & Major Tony Marston who has long heard about Wes' Mud Puppy 'adventures, ' Clay Shearer came for the first time, Judy & Adrian Courteau dipnetted up some individuals from shore ice, and Cheryl Doran arrived after the rest of us had left the site, but joined us in the Brigadoon.

This afternoon I'd written to the lists:

"the low water and extensive glamourous ice, along with the -7 C temperatures they're talking about on the Radio right now, suggests a magnificent Mudpuppy Night. "

. . . and this certainly proved to be the case. Ice was complete both above and below the bridge this week, with extensive shelves, 3-6 cm thick, over the lower west side flats, and over most of the east side under the overhanging trees. Necturus were deployed densely in the moss of the main current, and under the ice shelf on the west side, as well as caulked under the east side spillway ledge.

16 seen from ice-covered Vantage Point ledge
35 seen in wading across the main current (upstream)
22 under east side spillway ledge
35 seen in wading across the main current (downstream)
about 20 under the 100 sq m of ice that Wes and I broke away under the west side (this may be an underestimate -- and the wading-across counts may contain some duplicates).

There were quite a few both large (ca 30 cm) and small (ca 13 cm) among the multitude, and I saw about 15 pairs in close parallel positions, mostly of medium size. This may not be more than expected, given the large total number.

Two mysterious white egg-shaped objects on the bottom proved to be lead fishing weights. There's a wider than usual growth of moss in the main current this year. The main current was shifted towards the east side tonight.

Bev Wigney wrote in her blog (http://magickcanoe. com/blog/2007/02/17/a-magnificent-mudpuppy-night/ )
"Several individuals clad in hip waders and/or tall boots descended into the approximately knee-deep water to count salamanders. Jennifer Schueler, being of good, hardy stock, and much more intrepid than most of us, peeled off her shoes and socks and went wading barefoot. Chilly as that may sound, once you're into the water, it's often considerably warmer than the air. However, from my own experience with such things, it's the coming back out that's a bit of a drag. [Jenn in fact retired to the Brigadoon after wading in and catching a Mudpuppy by hand]. . . . the largest of the salamanders has a deformed left hind leg. . . This can be seen in the above photo. . . "

"Photographer's Notes: After several attempts at photographing these aquatic salamanders, we've learned a few useful things. First, it's good to put some kind of vinyl or other sheet down on the snow before setting the aquarium in place. That keeps the aquarium free of snow right down to the bottom of the glass. Also important, is to bring along a jug or two of warm water to add sparingly to the icy river water. That will prevent a jello-like film of ice from immediately forming over the surface of the water. It also slows down the surface fogging on the aquarium glass. Bring along a towel to wipe the outer side of the aquarium glass from time to time. A soup ladle works well for skimming away debris in the water. The best lighting without causing too much glare appears to be provided by the hand-gun shaped Noma rechargeable flashlight turned to the Xenon lamp setting. With a camera or DVcamcorder set in movie mode, that seems to provide plenty of light. In fact, most times, I find it adequate for still photos when shooting through the sides of the aquarium. If you use a flash while shooting at an aquarium. . . well. . . not too surprisingly. . . you get a nice photo of a flash. The quality of the movie clips and still photos seems to be improving with each attempt, so we'll continue with our experimentation. "

(same location) 2007/013/ab, Orconectes virilis (Northern Crayfish) (Crayfish). 1 adult, seen. on W side flats, among many Necturus.

(same location) 2007/013/ac, Perca flavescens (Yellow Perch) (fish). 1 juvenile, seen. ca 10 cm TL, on W side flats, among many Necturus. Described as "Perch-like, barred, laterally compressed" by Wes, and identification accepted despite his "not being a fish expert. "


18 February 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1950-2050. AIR TEMP: -17, clear, breezy. OBSERVER: Frederick W. Schueler, Paul Goulet, +++. 2007/014/ca, Necturus maculosus (Mudpuppy) (herp). 40ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights, wading, & filming. Surprisingly fewer than in recent visits. About 25 were ranged across the west side (where most filming occurred) and midstream, with about another 15 caulked under the east side spillway ledge.

The water was very clear, with a field of floating flakes on the west side, grading into flakey fluffy pans, about 30 cm in size, in midstream, and little round pans, about 30-40 cm, on the west side. The current is still running predominantly towards the east side.

(same location) OBSERVER: Frederick W. Schueler, Paul Goulet. 2007/014/cb, Semotilus corporalis (Fallfish) (fish). 1 adult, seen. ca 15 cm TL, in bedrock crack in midstream, among Necturus.


19 February 2007

moved 10.5 km S.
(at home) TIME: 1849. AIR TEMP: -13.5, snowing, calm. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. villagerlog, departure (departure) (event). natural history, drive. 196856 km, to ONFC Mudpuppy Night in Oxford Mills. As soon as we were home and I'd gulped some supper, I headed back to Oxford Mills for the third Mudpuppy Night in 4 days: this time for the venerable Ottawa Field Naturalists Club, while Aleta collapsed in a pre-coldsore state.

========================

<<partition this>> Aleta and Jennie are in Ottawa today, and have gotten a new "highly effective" anti-herpes drug for her cold sores and some preparatory shopping and cheque harvesting.

Yesterday we went into Kemptville and retrieved Aleta's driver's license, bought enzymatic "eau de Kathy" to de-scent Apartment Two (since Jamie came over yesterday to ask if she and her refractured family could move into it), and get my new bifocal goggles. Maybe Jennie had some highly critical mission in Kemptville as well, but she seemed to act mostly a chauffeur. We saw a motor home ("residential vehicle") of vast dimensions in a driveway in Kemptville that looked quite a bit like the one Aleta's parents have just bought.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1903-1918. AIR TEMP: -13 ca, overcast, calm. HABITAT: freezing-over brown-water creek at limestone flats below old milldam. 2007/014/da, Necturus maculosus (Mudpuppy) (herp). 12ca adult, seen. most small, most on shallow W-side flats. The water was still very clear and even lower than last night -- it's surprising to see so few and all so small.

(same location) 2007/014/db, Cyprinidae (Carps And Minnows) (fish). 1 adult, seen. ca 10 cm TL, on shallow E-side flats.

(same location) TIME: 1955-2050. AIR TEMP: -13 ca, overcast, snowing, calm. OBSERVER: Frederick W. Schueler, OFNC group. 2007/015/a, Necturus maculosus (Mudpuppy) (herp). 31 adult, seen, dipnetted. seen in Mudpuppy Night outing with lights & no wading. After I'd been discovered by the OFNC group, who'd sequestered themselves upstairs in the Brigadoon, and had given them a talk about the Life of the Mudpuppy, we came down and watched from shore. Fortunately the water was low enough that we could see half-way across the creek, because in accordance with what seems inevitable natural law, I'd forgotten something: in this case the wading boots I'd brought over to the Store. but hadn't gotten into the van. The counts were made after the group left, and amounted to:

12 visible from the Vantage Point area,
12 on lower W-side flats,
1 at the E-side spillway ledge,
6 in the main current visible from the East shore.

Without wading this may have been an underestimate, but it's certainly more than I saw at 19h03-19h18, and fewer than we've been seeing at recent outings before this weekend. We need late-night surveys: maybe at 26h00 there's hundreds of them here every night!


23 February 2007

moved 10.5 km S.
(at home) TIME: 1944. AIR TEMP: -11, overcast, windy. ROUTE: Co Road 18. OBSERVER: Matt Keevil, Frederick W. Schueler. 2007/015/-, departure (departure) (event). natural history, drive. in Matt's Jeep to Mudpuppy Night in Oxford Mills.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1958-2045. AIR TEMP: -12 ca, overcast, snowing, windy. HABITAT: frozen-over brown-water creek at limestone flats below old milldam. OBSERVER: Matt Keevil, Frederick W. Schueler, Brian Day, Sparlings, Peggi Calder, Larry Fraser, ++. 2007/015/b, Necturus maculosus (Mudpuppy) (herp). 100ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights & wading. The count was by Matt wading the entire area, with most in midstream and on the west side, and none at the east-side spillway ledge, though there were quite a few caulked into the bedrock cracks in midstream.

The water was about as low as last week, the water perhaps a slight bit milky-cloudy, with the current headed towards the east side, and big areas of ice formed on the downstream west side. A crack near shore (in 10 cm ice) was stepped through, and big areas (one slab 4 x 6 m) were floated off and down into midstream, revealing few Mudpuppies (only about 5 under the 4 x 6 m slab). Matt tried to remove some ice from the east side to get in towards where he'd seen lots of Caddis larvae on 2 February, but the slabs he cut were soon nearly aground: even some slabs that broke under our weight when we returned dipnetted captives from their visit to the Brigadoon afterwards had to be pushed out into the current before they floated downstream to join the jam at the bottom of the open area.

For most of the visit FWS explained things to shore-bound visitors on the west bank or weilded the axe (this week's forgotten object was his new bifocal glasses), Larry Frazer tried to take photos, and Brian Day stood ashore and flashed photos, while Joe Sparling & Jalen waded in midstream, counting 40 in a relatively small area.

The party included Peggi & Bill Calder, Ronna Mogelon & Richard Mahoney. When we arrived it was snowing, but this continued only lightly and sporadically through the evening. No other Vertebrates were seen (note NO:Lontra tracks in the snow this winter, so far), but there were many Isopoda in the moss in midstream.


2 March 2007

moved 10.4 km S.
(Bishops Mills Store) TIME: 1948. AIR TEMP: 0, light overcast, calm. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. focuslog, departure (departure) (event). natural history, drive. 189829 km, to Mudpuppy Night in Oxford Mills. Matt Keevil in his own car.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2002-2053. AIR TEMP: 1, calm, light overcast. HABITAT: frozen-over brown-water creek at limestone flats below old milldam. OBSERVER: Matt Keevil, Frederick W. Schueler, Brian Day, Sparlings, Clay & Ben Shearer. 2007/017/a, Necturus maculosus (Mudpuppy) (herp). 80ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights & wading. The count was 72 by Matt wading the entire area, with most on the west side, 12 along the spillway ledge, and 12 visible from the Vantage Point. We exposed about 10 more by removing about 100 sq m of slushy ice shelves from the west side, and floating them down to the foot of the open area. Most were small. There were some caulked into the bedrock cracks in midstream. The lack of any on the east side may have been due to the shallowness of the water there, which was less than 15 cm over much of the flats (it rose a few cm through the visit as the ice chunks we sent downstream jammed the outflow).

The water was even lower than last week, and very clear (though not really deep enough anywhere for us to be able to see modest turbidity). It seemed to be eroding the strength of the ice, so was probably above 0 C, but we didn't measure it. Brian photographed Mudpuppies with a submergable camera, while Joe Sparling & Jalen waded in midstream, counting 30 in a relatively small area.

No other Vertebrates, and no Crayfish, were seen, but 2 Isopoda and two Trichoptera were taken in the moss in midstream.


3 March 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1943-2101. AIR TEMP: -1, breezy, light overcast. OBSERVER: Frederick W. Schueler, Paul Goulet, +30 ca. 2007/017/b, Necturus maculosus (Mudpuppy) (herp). 70ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights & wading. The count was 70 by Paul wading the entire area, with most on the west side, and most small with the majority of the larger ones at the downstream ares of the open water (just above the ledge that drops off to deeper water). No other Vertebrates, and no Crayfish, were seen, despite a specific search by Paul for Rana (True Frog).

As last night, the water was low and very clear. It seemed to be eroding the strength of the ice, though not so much as last night. The chunks we sent downstream last night seemed to be eroded away, however, though more slushy ice had formed and was covered with a couple cm of new snow.

I had more of a role here than I'd anticipated: Little Ray's (Paul Goulet's) Jr. Herpetologist carsfull had began to arrive and go down to the creek without supervision, so I was diverted from my planned trajectory by herding them away from the edge of the ice, and pointing out Mudpuppies until he arrived -- and then there were so many in the crowd that I felt I had to stay and provide guidance, while he provided stentorian commentary and waded the creek, which took a full hour.


9 March 2007

moved 10.4 km S.
(Bishops Mills Store) TIME: 2002. AIR TEMP: -11, overcast, calm. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. focuslog, departure (departure) (event). natural history, drive. 190585 km, to Mudpuppy Night in Oxford Mills.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2016-2115. AIR TEMP: -9, overcast, calm. HABITAT: frozen-over brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler, Brian Day, Wes von Papineau, +++. 2007/019/ba, Necturus maculosus (Mudpuppy) (herp). 75ca adult, seen, dipnetted, photo. seen in Mudpuppy Night outing with lights & wading. On our arrival, we were astonished to see 25 Necturus, almost all small, crowded up in the upper westside flats just below the Vantage Point ledge. I waded the whole open area and saw relatively few, about 20, in the main current, and then again 20 caulked below and in the lee of the spillway ledge. When we cleared about 30 sq m of ice from the lower west-side flats, we exposed about 10 more. We netted up one large adult and the Orconectes (Orconectes).

One in midstream had a ca 50 mm SVL Rana pipiens (Leopard Frog) nearly swallowed in its mouth.

As last week, the water was low and very clear. The newly formed ice included a lot of air, and the edge was very slippery. There was only about 10 x 15 m of open water, which we enlarged by axe-work, sending the ice from a 10 x 3 m area (or perhaps more) on the west side down to the foot of the open area in 1 m, or smaller, chunks.

Wes wrote: "When I was guiding the cornsnake-keeping Miss Sara on her first mudpuppy foray (methinks you'll see her again next year) - we spotted 24 (+) MPups in that giant pod that you first discovered - near the shelf where Aleta was so precariously perched [upper west-side flats]. On the 'caulking' shelf we counted another 42-ish . . . and then about 12 on the far and middle side - though I would estimate that some were probably 'recounts' from those that drifted losse from the caulking area as we went through. You'll want to confirm with Matt the fish we saw - he was perplexed at the time - 'twas NOT a perch derivitive. . . "

This total of 78 is reassuringly close to my count made earlier, and suggests that the Mudpupies had moved upstream to the spillway ledge during the course of our visit to the site. Next year's project has got to be a few all-night vigils.

There were about 10 visitors whose names we didn't capture, and Wes wrote: "Sara . . . that's it. All I know is that her aunt brought her in from someplace south (with her Mom I think - the latter staying in the Brigadoon) after she learned about MPup Night on the I-net. I didn't pry too much while I was getting her dressed (in boots) least it look too 'dirty-old-man-ish. ' We had to beat the young lady out of the water before her aunt and I froze to death - oh for the energy and immunity of youth!! There was also a couple in from Kingston that were wading about quite comfortably (also finding about the event on the net after talking with Kingston Field Naturalists). Nobody came with me. . . "

(same location) 2007/019/bb, Rana pipiens (Leopard Frog) (herp). 2 adult, prey of predator, seen, dipnetted, photo. 1 ca 60 mm SVL under ice, 1 ca 50 mm SVL being swallowed by Necturus. The first was active on the open west-side flats, under 10 cm ice. The one being swallowed was in midstream, in a fairly large Necturus, with only the legs and head, with everted esophagus, of the Frog showing.

(same location) 2007/019/bc, Orconectes virilis (Northern Crayfish) (Crayfish). 1 adult, male, dipnetted. large M, in the open on bedrock.

(same location) 2007/019/bd, preliminary vernacular: aquatic moss (not listed) (Bryophyte). 1/dominant herb, specimen. all over midstream bedrock, ca 30 cm depth. Note that there's almost NO:Batrachospermum keratophytum this year.

(same location) 2007/019/be, Isopoda (Isopod) (invertebrate). 2 herb, specimen. from midstream moss, ca 30 cm depth. Take by Matt by hand.


13 March 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 1837. AIR TEMP: 9 ca, light rain, breezy. HABITAT: brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler. 2007/021/b, visit () (event). natural history, seen. water rising, but ice continuous above bridge.


16 March 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1059-1115. AIR TEMP: -5, windy, overcast. OBSERVER: Frederick W. Schueler. 2007/022/aa, Necturus maculosus (Mudpuppy) (herp). 1 adult, dead, prey of predator, specimen. washed up on W shore ice, being pecked by Crow. When I arrived at the parkinglot, there was a Corvus brachyrhynchos (Crow) pecking persistently at something on the ice of the far shore, and I lamented that this food item was likely so small that I wouldn't be able to see what it had been. But when I got there, it was this Mudpuppy, frozen into the icy snow well (20 cm) above the current water level. Either it was the prey of an Otter, or it was washed up onto the ice by surging waves and stranded.

The creek is high, but not as high as it had been earlier in the winter, and the level has fallen
about 10-15 cm from the sparse drift left when it was highest during the warm spell. There are a few strands of Myriophyllum (Water Milfoil) frozen into the shore ice. There's no surface ice, but big areas of flooded ice on the west side, and smaller areas of this on the east side. The pond above the dam is floting old ice, with new ice around the margins where it had melted through.

(same location) 2007/022/ab, Corvus brachyrhynchos (Crow) (Bird). 1 adult, food, seen. pecking dead Necturus washed up on W shore ice.

(same location) 2007/022/ac, Lontra canadensis (River Otter) (Mammal). 1 adult, tracks. large tracks in frozen snow below E side of dam. The first Otter tracks seen here this winter.

moved 10.4 km S.
(Bishops Mills Store) TIME: 1851. AIR TEMP: -7, overcast, windy, Beaufort moderate breeze. ROUTE: Co Road 18. rentalog, departure (departure) (event). natural history, drive. to Mudpuppy Night in Oxford Mills, Matt to follow later.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 1907-1945. AIR TEMP: -8.5, windy, snowing. HABITAT: brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Matt G. Keevil, ++. 2007/021/d, Necturus maculosus (Mudpuppy) (herp). 1 adult, seen, dipnetted. captured in Mudpuppy Night outing with lights & wading. "I" wrote to the Nature List:

> I expect that we'll see some Mudpuppies tonight, at least, perhaps on the west side where extensive splashing around will be had in the course of axe-work to free up submerged ice shelves, and probably on the east side in the eddy downstream of the access point.

* well, "some" turned out to be an exaggeration. Matt Keevil and a family of visitors were there with me, and the east-side flats, where the water was >50 cm deep, Matt saw one fairly large Mudpuppy, and subsequently netted what was probably the same one, so that the visitors could be amazed.

The stream was open from the dam to the head off the downstream pool, and the air was full of vast numbers of tiny hard snowflakes (about 1 cm of snow accumulated during our visit). The water was perhaps higher than in the afternoon, though the landmarks I'd used to judge changes of water level were obliterated by snow. The water was grey-murky with ice-melt humic acid particles and surface slush forming from the falling snow (bottom sometimes unresolvable under 50 cm of water). On the west side waves were sloshing over the ice shelf, making the surface slushy. Extensive areas of flooded ice shelf could have been cut free had the axe not been the piece of equipment I forgot this week, but the water there was moving too fast for Necturus in open water: Matt waded into the centre of the eddy, and there were none their either.


23 March 2007

moved 10.4 km S.
(Bishops Mills Store) TIME: 2007. AIR TEMP: 2, clear, calm. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. rentalog, departure (departure) (event). natural history, drive. to Mudpuppy Night in Oxford Mills, aft arrival of Andrew Mott.

moved 10.4 km N.
Oxford Mills Dam, Kemptville Creek. (100m blw dam), 44.96486N 75.67863W TIME: 2018-2028. AIR TEMP: 3, clear, calm. HABITAT: brown-water creek at limestone flats below old milldam, water 1 C. 2007/025/d, Necturus maculosus (Mudpuppy) (herp). 2 adult, seen. medium-size, at edge of sod, 25-35 cm water, below E side spillway. Despite high water levels, tonight's outing wasn't completely without its target species, though after visitors arrived and I went out to capture one, I wasn't able to refind these, below the spillway at the edge of the bank sod on the east shore.

The water was 25 cm or so over the Vantage Point ledge, and grey-turbid from melting ice. There was no floating ice left, and the water was 1 C (though the pond above the dam was still 90% covered with a combination of old and newer ice), with 2-4 m wide shelves of slush-sloppy surfaced ice on the west shore, so that the water at the edge of the bottom-fast ice was about 30 cm deep. The current there was too deep for any Necturus to be seen or expected; none in the east side eddy beneath the trees.


27 March 2007

moved 0.00 km SE.
Canada: Ontario: Grenville County: Co Road 18/Kemptville Creek, in Oxford Mills. (50m waypoint), 44.96484N 75.67860W TIME: 2107-2111. AIR TEMP: 11 ca, overcast, Beaufort gentle breeze. HABITAT: bridge over brown-water creek at limestone flats below old milldam in town. OBSERVER: Frederick W. Schueler. 2007/027/c, no observation () (event). survey, seen. NO:Rana pipiens AOR/DOR at usual crossing, creek high.


30 March 2007

moved 10.5 km S.
(at home) TIME: 2127. AIR TEMP: 1, clear, Beaufort light air. ROUTE: Co Road 18. OBSERVER: Frederick W. Schueler. rentalog, departure (departure) (event). natural history, drive. to Mudpuppy night in Oxford Mills.

moved 10.5 km N.
Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 2130-2140. AIR TEMP: 2, clear, Beaufort light breeze. HABITAT: brown-water creek at limestone flats below old milldam, water 6 C. OBSERVER: Matt G. Keevil. 2007/028/aa, Castor canadensis (Beaver) (Mammal). 1 adult, seen. on shore, & swimming in eddy, followed by Ondatra, full Moon. Matt got really upclose to a Beaver in the west side eddy, and the Beaver had been followed around in the water by a Muskrat. He encountered it up on shore ("a big brown mass") and it swam around and then came back towards his light.

(same location) TIME: 2130-2203. AIR TEMP: 2, clear, Beaufort light breeze. OBSERVER: Matt G. Keevil, Frederick W. Schueler. 2007/028/a, visit () (event). natural history, wade, light. Mudpuppy Night outing, full Moon, NO:Necturus maculosus seen. [Nature List] Lastpuppy Night in Oxford Mills
Frederick W. Schueler bckcdb at istar. ca
Fri Mar 30 22:00:13 CDT 2007

Frederick W. Schueler wrote:

> We'll go out for Necturus tonight (at 21h00 -- daylight time and the progression of the season makes 20h00 too early), but won't plan to go into the Brigadoon, because they try to close at 22h00.

* Matt Keevil left here first, and by the time I'd found various gear and arrived (21h40), he'd been really upclose to a Beaver in the west side eddy, and the Beaver had been followed around in the water by a Muskrat. He encountered it up on shore ("a big brown mass") and it swam around and then came back towards his light.

By the time I arrived the Beaver and Muskrat had gone, but I admired the piles of drifted shells on the shore, and we went back to the east side, where Matt waded around, encountering a 50-60 cm Pike and a few 40 cm fish that may have been Suckers. There was also a Muskrat that was clinging to a rock in 50-60 cm of water, as still as if it were dead, evidently attempting concealment, which would have worked well if Matt hadn't had a light. When he prodded it, it swam off. No Mudpuppies were seen.

** There was no ice above or below the dam. The water is fairly clear, but greyish. There are moderately big piles of shells on the Helisoma Ledge and the west shore, but the water hasn't been up onto the Helisoma Ledge.

(same location) 2007/028/ab, Ondatra zibethicus (Muskrat) (Mammal). 1-2 adult, seen, prodded. following Casor in eddy & clinging to sumerged rock, full Moon. Matt saw a Beaver in the west side eddy, which was followed around in the water by a Muskrat. Later we saw a Muskrat that was clinging to a rock in 50-60 cm of water on the east-side flats, as still as if it were dead, evidently attempting concealment, which would have worked well if Matt hadn't had a light. When he prodded it, it swam off.

(same location) TIME: 2140-2203. AIR TEMP: 2, clear, Beaufort light breeze. HABITAT: high brown-water creek at limestone flats below old milldam, water 6 C. 2007/028/ac, Esox lucius (Northern Pike) (fish). 1 adult, seen. 50-60 cm long, full Moon. Also a few 40 cm fish that may have been Catastomidae.


13 April 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 1720. AIR TEMP: 4.5, light rain, breezy. HABITAT: high-water brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Matt G. Keevil, Aleta Karstad Schueler. 2007/036/f, Ondatra zibethicus (Muskrat) (Mammal). 1 adult, seen. on E shore just below dam, plunged into tulmultuous water. Water down 20 cm or so from the ce=rest, which left piles of shells on both shores.


23 April 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 1515-1521. AIR TEMP: 24 ca, light overcast, windy. HABITAT: brown-water creek at limestone flats below old milldam. OBSERVER: Frederick W. Schueler. 2007/050/j, Mollusca () (Mollusca). shell, drift, specimen. drift from Helisoma ledge.


25 April 2007

Canada: Ontario: Grenville County: Oxford Mills Dam, Kemptville Creek. (100m ard dam), 44.96486N 75.67863W TIME: 1356. AIR TEMP: 13 ca, hazy, sunny, calm. HABITAT: impounded brown-water creek & limestone flats below old milldam. OBSERVER: Frederick W. Schueler, Aleta Karstad Schueler. 2007/055/e, Ondatra zibethicus (Muskrat) (Mammal). 1 adult, seen, photo. repeatedly swimming in pond with arched tail aft diving. The tail was held arched and completely clear of the water for a period of 5-10 seconds or more, while the Muskrat remained stationary, and then dove and came back up in the same spot. We observed 4 or 5 cyles of this. AKS photo.

The water below the dam is down 20 cm or so, leaving the newly exposed rocks streaming with short green filamentous algae. There's still 10 cm or so of water over the Vantage Point ledge, but this is a remote estimate, since we didn't visit the west shore.