Comparative vulnerability of three esocids to largemouth bass (Micropterus salmoides) predation

D. H. Wahl, R. A. Stein

Research output: Contribution to journalArticlepeer-review


Compared vulnerability among tiger muskellunge Esox masquinongy × E. lucius, northern pike E. lucius and muskellunge E. masquinongy to predation by largemouth bass. Tiger muskellunge were significantly more susceptible to predation (mean 30%, range 1-53% mortality) than muskellunge (12%, range 2-26%); northern pike were intermediate in susceptibility (19%, range 2-35%). Esocid size influenced predation rates for all taxa; losses to predation decreased from an average of 31% at 145mm to 2% at 205mm. Differential habitat selection may partially explain why tiger muskellunge are more vulnerable to largemouth bass predation, as they spent more time in open than vegetated habitats in both pond and pool experiments than either of the parent species. For all taxa, stocking lengths ≥205mm in fall will increase survival by reducing predatory losses. -from Authors

Original languageEnglish (US)
Pages (from-to)2095-2103
Number of pages9
JournalCanadian Journal of Fisheries and Aquatic Sciences
Issue number12
StatePublished - 1989

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Aquatic Science

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