Abstract
The yields per sq. m. computed as (1) av. wet wt. and (2) no. of organisms were: pool—36.91 g., 745; riffles—14.60 g., 1061; creek—8.25 g., 536. Vegetation is the most productive type of habitat, followed by mud, rubble, gravel bottom. The river may be designated as a "Trichoptera stream". No close correlation was found between no. of organisms in bottom fauna and no. in trout stomachs, thus suggesting discrimination among trout for food organisms.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have