Feeding ecology of redside dace, Clinostomus elongatus

Autor:	R. A. Daniels, S. J. Wisniewski
Rok vydání:	1994
Předmět:	Redside dace Larva Ecology biology Empididae Foraging Aquatic Science Hilara biology.organism_classification Predation Cyprinidae Dominance (ecology) Ecology Evolution Behavior and Systematics
Zdroj:	Ecology of Freshwater Fish. 3:176-183
ISSN:	1600-0633 0906-6691
DOI:	10.1111/j.1600-0633.1994.tb00020.x
Popis:	– Redside dace, Clinostomus elongatus (Kirtland), from two populations in New York, USA, consumed adult Diptera; over 85% of the prey taken between April and November was in this order. Adult Hilara spp. (Empididae) were the dipterans consumed most frequently; individuals of this genus represented 70% and 60% of the items consumed by fishes from populations in Allcgheny and Hudson River drainages, respectively. Over 98% of the prey consumed by redside dace was in ten insect orders. Adult and larval chironomids and adult trichopterans were the next most frequently consumed prey. Adult chironomids made up 9% of the diet, by number, in both populations. Adult trichopterans accounted for 2–3% of the items taken. Adult empidids were selected by individuals in both populations. The dominance of flying insects in the diet of redside dace is related to their foraging behavior. These data show that adjacent terrestrial environments may be important to some stream-dwelling organisms.
Databáze:	OpenAIRE
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