Foraging Characteristics of Larval Bluegill Sunfish and Larval Longear Sunfish in the Kanawha River, West Virginia
作者:
StevenJ. Rider,
F.Joseph Margraf,
期刊:
Journal of Freshwater Ecology
(Taylor Available online 1998)
卷期:
Volume 13,
issue 2
页码: 221-228
ISSN:0270-5060
年代: 1998
DOI:10.1080/02705060.1998.9663610
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
We determined spatial and temporal foraging characteristics of larval bluegill sunfish (Lepomis macrochirus) and longear sunfish (Lepomis megalotis)in the upper Kanawha River, West Virginia during the summer of 1989. Stomach contents were examined among habitat types (i.e., main channel, main-channel border, and shoreline habitats) and depth (surface, middle, and bottom). Diet of larval bluegill sunfish was dominated by Chironomidae, temporally and spatially. Chironomidae dominated larval longear sunfish diet in main channel and main-channel border collections from all three depths. However, along the shoreline, larval longear sunfish diet was dominated by Cladocera.
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