Diet |
Bottom-dwelling insect larvae |
Mollusks, winged insects |
![checkmark](images/checkmark.gif) |
![checkmark](images/checkmark.gif) |
Size |
Smaller body size compared to counterparts in heated parts of the river |
Larger body size compared to counterparts in unheated parts of the river |
![checkmark](images/checkmark.gif) |
![checkmark](images/checkmark.gif) |
Growth |
One annual growth period |
Two annual growth periods |
|
![checkmark](images/checkmark.gif) |