Influence of prey abundance on size-selective predation by bluegills
Abstract
Bluegills Lepomis macrochirus in Lake Wingra consume zooplankton in a size-selective fashion. Length-frequency distributions of ingested and available prey demonstrated that bluegills feed on a smaller range of ever larger Daphnia galeata and Bosmina longirostris as these prey species increased in abundance. The same was not apparent for Cyclops bicuspidatus as prey. Regression of intensity-of-selection indices for Daphnia and Bosmina versus their combined abundance suggests that these prey species are not differentiated by bluegills in Lake Wingra.
- Authors:
- Publication Date:
- Research Org.:
- Oak Ridge National Lab., TN
- OSTI Identifier:
- 6532349
- DOE Contract Number:
- W-7405-ENG-26; AI09-76SR00943
- Resource Type:
- Journal Article
- Journal Name:
- Trans. Am. Fish. Soc.; (United States)
- Additional Journal Information:
- Journal Volume: 111
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 59 BASIC BIOLOGICAL SCIENCES; FISHES; BEHAVIOR; POPULATION DYNAMICS; PREDATOR-PREY INTERACTIONS; ABUNDANCE; AQUATIC ECOSYSTEMS; ECOLOGY; FEEDING; FOOD CHAINS; ZOOPLANKTON; ANIMALS; AQUATIC ORGANISMS; ECOSYSTEMS; PLANKTON; VERTEBRATES; 550100* - Behavioral Biology
Citation Formats
Bartell, S M. Influence of prey abundance on size-selective predation by bluegills. United States: N. p., 1982.
Web. doi:10.1577/1548-8659(1982)111<453:IOPAOS>2.0.CO;2.
Bartell, S M. Influence of prey abundance on size-selective predation by bluegills. United States. https://doi.org/10.1577/1548-8659(1982)111<453:IOPAOS>2.0.CO;2
Bartell, S M. 1982.
"Influence of prey abundance on size-selective predation by bluegills". United States. https://doi.org/10.1577/1548-8659(1982)111<453:IOPAOS>2.0.CO;2.
@article{osti_6532349,
title = {Influence of prey abundance on size-selective predation by bluegills},
author = {Bartell, S M},
abstractNote = {Bluegills Lepomis macrochirus in Lake Wingra consume zooplankton in a size-selective fashion. Length-frequency distributions of ingested and available prey demonstrated that bluegills feed on a smaller range of ever larger Daphnia galeata and Bosmina longirostris as these prey species increased in abundance. The same was not apparent for Cyclops bicuspidatus as prey. Regression of intensity-of-selection indices for Daphnia and Bosmina versus their combined abundance suggests that these prey species are not differentiated by bluegills in Lake Wingra.},
doi = {10.1577/1548-8659(1982)111<453:IOPAOS>2.0.CO;2},
url = {https://www.osti.gov/biblio/6532349},
journal = {Trans. Am. Fish. Soc.; (United States)},
number = ,
volume = 111,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 1982},
month = {Fri Jan 01 00:00:00 EST 1982}
}
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