01-20-2011, 07:51 PM
We have talked about this before, but your quote does seem to be on the money
"The surface temperatures during these months commonly exceed 20°C (68° F) while temperatures from mid-depth to the bottom rarely exceed 15 °C. (59°)."
The surface temp is the key to summertime C&R survival and most studies I have read say 70 degrees is where the problems really become large. The diff between 68 and 70 is minimal and the quote does say "exceed". Although not totally an apples-to apples comparison, didn't Montana enact a temporary emergency closure on the Madison a couple of years back during a heatwave, because the water temps exceeded 70 degrees?
I guess IMO, if one is concerned about good C&R, (and many of us should be) fish the high country during the heatwaves or go for warmwater species.
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"The surface temperatures during these months commonly exceed 20°C (68° F) while temperatures from mid-depth to the bottom rarely exceed 15 °C. (59°)."
The surface temp is the key to summertime C&R survival and most studies I have read say 70 degrees is where the problems really become large. The diff between 68 and 70 is minimal and the quote does say "exceed". Although not totally an apples-to apples comparison, didn't Montana enact a temporary emergency closure on the Madison a couple of years back during a heatwave, because the water temps exceeded 70 degrees?
I guess IMO, if one is concerned about good C&R, (and many of us should be) fish the high country during the heatwaves or go for warmwater species.
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