Influence of Prey Abundance on Size-Selective Predation by Bluegills
- 1 July 1982
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 111 (4) , 453-461
- https://doi.org/10.1577/1548-8659(1982)111<453:iopaos>2.0.co;2
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.This publication has 4 references indexed in Scilit:
- The Nature of Prey Selection by Planktivorous FishEcology, 1977
- Apparent Size as the Determinant of Prey Selection by Bluegill Sunfish (Lepomis Macrochirus)Ecology, 1976
- The Effect of Fish Predation on the Zooplankton of Ten Adirondack Lakes, with Particular Reference to the Alewife, Alosa pseudoharengusTransactions of the American Fisheries Society, 1971
- Size-selective Predation on Daphnia by Rainbow Trout and Yellow PerchTransactions of the American Fisheries Society, 1967