Prey selection and functional response of juvenile lemon sharks Negaprion brevirostris

A. Reeve, R. D. Handy, S. H. Gruber

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

Prey preference of juvenile lemon sharks Negaprion brevirostris was examined in experiments conducted in field-based pens where the fish were offered meals of live teleosts: grey snapper Lutjanus griseus and yellow fin majorra Gerres cinereus in ratios of L. griseus:G. cinereus varying from 10:0 to 2:8. Relative electivity indices for each treatment showed that N. brevirostris preyed on G. cinereus rather than L. griseus. They showed a prey preference relating to density of G. cinereus (type II functional response) but not to L. griseus.

Original languageEnglish (US)
Pages (from-to)276-281
Number of pages6
JournalJournal of Fish Biology
Volume75
Issue number1
DOIs
StatePublished - Jul 1 2009

Keywords

  • Gerres cinereus
  • Lemon shark
  • Lutjanus griseus
  • Prey preference

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics

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