WA Lakes Biotic Survey


Indi "Ira" Jones
If you skim the list there are several Odonates listed (including damsel nymphs). However, if you add them up they are still a tiny fraction of the Diptera (chironomid) numbers. I think Irafly made the observation last spring that trout are either "looking for skittles or hoagies" referring to chironomids and leeches/dragon nymphs, respectively. And where are leeches on that list? They are invertebrates, no?
I may have used steak and M and Ms but the point is the same. More I was refering to the size of bugs that fish will eat but then again quantity as well.

Numbers aside what about mass? Will midges still "out weigh" the competition?



Staff member

Would the sampling date change the survey results?
In the case of Grimes Lake, all sampling took place on 08/16/2007. For other lakes, sampling also took place during the summer (July, August, or September) of 2007. However, had the sampling taken place during different seasons (spring, summer, fall, winter), I would expect the results to differ based on the sampling date.