Influence of prey abundance on size-selective predation by bluegills
Journal Article
·
· Trans. Am. Fish. Soc.; (United States)
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.
- Research Organization:
- Oak Ridge National Lab., TN
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6532349
- Journal Information:
- Trans. Am. Fish. Soc.; (United States), Journal Name: Trans. Am. Fish. Soc.; (United States) Vol. 111; ISSN TAFSA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Lake acidification: Effects on crustacean zooplankton populations
Effects of cadmium on juvenile bluegill (Lepomis macrochirus) foraging behavior and growth
Growth, life history, and species interactions of bluegill sunfish (Lepomis macrochirus) under heavy predation
Journal Article
·
Sun Aug 01 00:00:00 EDT 1993
· Environmental Science and Technology; (United States)
·
OSTI ID:6759079
Effects of cadmium on juvenile bluegill (Lepomis macrochirus) foraging behavior and growth
Thesis/Dissertation
·
Thu Dec 31 23:00:00 EST 1992
·
OSTI ID:5214471
Growth, life history, and species interactions of bluegill sunfish (Lepomis macrochirus) under heavy predation
Thesis/Dissertation
·
Tue Dec 31 23:00:00 EST 1991
·
OSTI ID:10102850