Crawling Valley Whitefish

[RMauthe]

Just came off the lake - I have been camping / fishing here since last friday. Today I saw three floating dead whitefish - Large ones. Any ideas on what is happening? Water temp was around 24C. LOTS of algae in the water - it has been increasing daily.:thinking-006:

[idaman]

Low oxygen levels, it happens every year, you definitely see it on another of Edmonton area lakes. Pigeon had a bad kill off a few years ago.

[RMauthe]

saw 3 more dead fish today...

[Big Sky]

It's a great time of year to be a seagull.

[TROLLER]

You sure they were not Tullabee? They seem to have a life cycle and then pop up to the surface on that lake.

[pikergolf]

Low oxygen levels, it happens every year, you definitely see it on another of Edmonton area lakes. Pigeon had a bad kill off a few years ago.

Yup, lack of wind in late July, Aug sets off the southern Res. every year. Expecting it in SE Ab. res. as well, we have had very little wind the last two weeks.

[Big Sky]

I've never seen CVR have the algae problem like some other reservoirs do.

Agree.
I didn't think that the algae is any worse than in other years. Last week, we were fishing up by the memorial and had no problem with visibility in the water. We could see the fish we were catching when they were 5-6 feet down, maybe more.

I was gonna grab a couple of the whitefish and get my picture taken. :)
Definitely not tullibee.

[hookset]

See floating white fish in this lake every year about this time. Never do see pike or walleye floating around always whitefish.

[pikergolf]

You know the difference, but for others, CVR has both Lake Whitefish and Cisco and they look very similar. Here's how you tell the difference:

http://dnr.state.mn.us/areas/fisheries/baudette/whitefish.html

Tullibee are more common in CVR than Lake Whitefish (about 3X more common) and only slightly less common than pike.


Do you have a link for that?

[huntsfurfish]

I doubt there are cisco in CVR.

[huntsfurfish]

I be wrong, appears they are in there.

[pikergolf]

A total of 426 fish were caught in Crawling Valley Reservoir during the 2010 FWIN,
representing 7 different species (Appendix 1). The average catch for all species was 38.5
fish/100m2/24 h (95% CI: 29.1 – 48.1 fish/100m2/24 h). Walleye were the most
frequently caught fish (n=285, 66.9%), followed by Northern Pike (n=61, 14.3%), Cisco
(n=41, 9.6%), White Sucker (n=18, 4.2%), Lake Whitefish (n=14, 3.3%), Yellow Perch
(n=6, 1.4%) and Burbot (n=1, 0.2%). An average of 34.3 fish/100m2/24 h (95%CI: 24.6
– 45.6 fish/100m2/24 h) were captured in the shallow sets, while 41.2 fish/100m2/24 h
(95%CI: 27.1 – 52.3 fish/100m2/24 h) were caught in the deep sets.


Hmm.... I wonder how they got in there, from the original lake? Doubtful as it would have been very shallow. Are there Cisco in the Bow River drainage, again doubtful. Hopefully the bio's did not misID them.

[huntsfurfish]

A total of 426 fish were caught in Crawling Valley Reservoir during the 2010 FWIN,
representing 7 different species (Appendix 1). The average catch for all species was 38.5
fish/100m2/24 h (95% CI: 29.1 – 48.1 fish/100m2/24 h). Walleye were the most
frequently caught fish (n=285, 66.9%), followed by Northern Pike (n=61, 14.3%), Cisco
(n=41, 9.6%), White Sucker (n=18, 4.2%), Lake Whitefish (n=14, 3.3%), Yellow Perch
(n=6, 1.4%) and Burbot (n=1, 0.2%). An average of 34.3 fish/100m2/24 h (95%CI: 24.6
– 45.6 fish/100m2/24 h) were captured in the shallow sets, while 41.2 fish/100m2/24 h
(95%CI: 27.1 – 52.3 fish/100m2/24 h) were caught in the deep sets.


Hmm.... I wonder how they got in there, from the original lake? Doubtful as it would have been very shallow. Are there Cisco in the Bow River drainage, again doubtful. Hopefully the bio's did not misID them.

Hopefully.

[Big Sky]

I have a copy of Atlas of Alberta Lakes. Printed in 1990 but still a valuable resource for those interested in Alberta's lakes.

I took this photo of the section regarding fish in the two original lakes and the initial stocking of CVR. The two original lakes were flooded with the filling of CVR.
http://i357.photobucket.com/albums/oo14/BigSkyler/IMG_0308_zpsdoil8kzk.jpg

[pikergolf]

I have a copy of Atlas of Alberta Lakes. Printed in 1990 but still a valuable resource for those interested in Alberta's lakes.

I took this photo of the section regarding fish in the two original lakes and the initial stocking of CVR. The two original lakes were flooded with the filling of CVR.
http://i357.photobucket.com/albums/oo14/BigSkyler/IMG_0308_zpsdoil8kzk.jpg

Those original fish were footballs, I worked in a factory at that time and lots of guys were going to CVR to get rainbows to mount. Double digit figures in pounds if I remember correctly.

[WayneChristie]

Ciscos were stocked in another reservoir as well, and are still around, made their way further down the chain. Ive caught a couple small ones in a canal, so they are still breeding there too