MadSci Network: Zoology |
It is true that fish are found in waters with a wide range of temperatures. Certain fish may indeed be adapted to certain temperature ranges, and the specific means by which they are adapted to those water temperatures will vary from species to species (I would guess!). While I have no general answer to why different fish are found at different temperatures, I would offer another issue to consider: Besides temperature, there are numerous other characteristics of any environment that might determine whether a fish could survive there. For instance, some of these other factors might include food supply, oxygen concentration, predation, salt concentration, etc.. So while it is largely true that carp are found living in warmer waters than trout, this observation maybe due to differences between their environments other than temperature. Sorry I can not be more specific, but good question!
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