There should be many isopods and amphipods in tailwaters that dominate macroinvertebrate assemblages. I'm not sure of the size of dam you are talking about. Also, in addition to main tributaries you may have several small, shaded tributaries above impoundments and a 30 m wide tailwater. I would recommend some type of encolsure sampler, pump, etc, however these are much more costly than surbers.
On Tue, Sep 8, 2009 at 4:12 PM, NadeemKazmi?= <[email protected]> wrote: > 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 > -- Scott Longing, Ph.D. Arkansas Cooperative Fish & Wildlife Research Unit Department of Biological Sciences University of Arkansas Fayetteville, AR 72701 (479) 575-5449
