Forage Fish Assemblages in the Brazos River Upstream and Downstream from Possum Kingdom Reservoir, Texas

Autor:	Thomas L. Beitinger, K. A. Anderson, E. G. Zimmerman
Rok vydání:	1983
Předmět:	Campostoma Fundulus notatus food.ingredient biology Pimephales Ecology Percina Species diversity Aquatic Science biology.organism_classification food Notropis Labidesthes Ecology Evolution Behavior and Systematics Pimephales vigilax
Zdroj:	Journal of Freshwater Ecology. 2:81-88
ISSN:	2156-6941 0270-5060
DOI:	10.1080/02705060.1983.9664578
Popis:	The forage fish assemblage of the Brazos River was sampled at one location above and four locations below Possum Kingdom Reservoir each month for one year. A total of 13,936 individuals representing 18 species, 14 genera and five families were collected. Five of these species, Notropis stramineus, Notropis atherinoides, Hybognathus placitus, Hybopsis aestivalis and Cyprinodon rubrofluviatilis were found only upstream from Possum Kingdom Reservoir. Hybognatus placitus accounted for 45% of fish captured at the upstream site. In contrast, nine species were collected exclusively in the tailwaters, including Etheostoma spectabile, Percina sciera, Campostoma anomalum, Notropis venustus, Pimephales notatus, Labidesthes sicculus and Fundulus notatus. Only four species were obtained at all five stations—Gambusia affinis, Menidia beryllina, Pimephales vigilax and Notropis lutrensis. N. lutrensis was the most common tailwater species equalling 87.9% of the total downstream catch. Median species diversity in...
Databáze:	OpenAIRE
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