Food and habitat use by different sizes of largemouth bass (Micropterus salmoides) in alamo lake, arizona

Benny S. Wanjala, Jerry C. Tash, William J. Matter, Charles D. Ziebell

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

Each of three size groups of largemouth bass (Micropterus salmoides) differed in foraging behavior and habitat use in an Arizona reservoir. Small bass (< 25 cm TL) were found only in littoral areas and probably required cover to avoid predation. Most intermediate-sized bass (25–38 cm TL) were too large to be predated and were found in aggregations feeding on threadfin shad (Dorosoma petenense) in open limnetic waters. Large bass (> 38 cm TL) were generally found as solitary individuals near submerged structures suitable for ambush feeding. The allometric growth of these fish may have rendered them too bulky to effectively forage in the limnetic zone. Differences in habitat use and foraging behavior for different sizes of largemouth bass in the reservoir appear to be the result of the interaction of the behavioral flexibility of the species, site-specific resources and ecomorphological constraints.

Original languageEnglish (US)
Pages (from-to)359-369
Number of pages11
JournalJournal of Freshwater Ecology
Volume3
Issue number3
DOIs
StatePublished - Jun 1986

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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