I an considering conducting research on larval fish use/reproduction of freshwater fish in coastal plain stream systems (South Carolina) by comparing stream channel habitat usage to floodplain. My first thought is to compare the number of individuals; number of individuals of each species; and number of species from three stream systems using stream channel and floodplain to represent the two conditions. Variables I consider important to sample/collect include velocity, D.O., temperature, and habitat characteristics (such as type of aquatic vegetation and cover, type of substrate, % vegetation cover, water depth, etc.). I plan on sampling fall through spring to coincide with spawning events occurring during high water periods for a two year period, sampling one or two times/week.
I would appreciate any ideas/comments. Specific questions include: What type of larval fish sampling devise is appropriate for both faster moving stream channels and slower moving floodplain waters? Any ideas on adjusting the number of individuals collected since more water (higher water velocity) will flow through the sampling collection devises located in the stream channels? How long should each collection last (24 hours?)?
I do plan on thoroughly researching this topic, but would appreciate any early advise you may have.
Thanks!!! :)
Susan Dyer University of South Carolina and the Savannah River Site [log in to unmask]
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