Community Structure and Seasonal Changes in Standing Stocks of Fish in a Warm-water Stream

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Abstract
A comprehensive study of the standing stocks of fish species in Glover Creek, Oklahoma [USA], was conducted on a seasonal basis from 1977-1979. Community structure was described by biomass of species and feeding guilds and comparisons were made among seasons. Invertivore and invertivore-piscivore feeding guilds contained 79.9% of the total fish standing stock. Guild structure differed among riffles and pools and varied less seasonally than between habitat types. The annual average total fish standing stocks were 60 and 90 kg/ha for riffle and pool sites, respectively. Total standing stocks differed among seasons with the annual average occurring in April-May and Oct.-Nov., and the maximum occurring during July-Aug.