I want to sample macro invertebrate and look for species that need high
concentrations of DO , such as mayfly , stonefly and caddisfly and trout.
My hypothesis is that stream reach below dam will have macro invertebarates
that thrive in low DO and stream above the dam would have macro
invertebrates that trive in high DO. My constriants are that 1) I have not
done done macro invertabrate sampling, 2) I will doing sampling by
myself. 3) Surber sampler is quite expensive. Can you please guide me how I
should do the macro invertabrates sampling? and from Where I can get a
Surber sampler for cheap , my budget limit is $ 70.
I will really appreicate your help
Thanks
Nadeem kazmi