Social preferences of juvenile lemon sharks, Negaprion brevirostris

T. L. Guttridge, S. H. Gruber, K. S. Gledhill, D. P. Croft, D. W. Sims, J. Krause

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


Group living in sharks is a widespread phenomenon but relatively little is known about the composition and organization of these groups. In binary choice field experiments juvenile lemon sharks were attracted to conspecifics presumably to form groups. Experiments investigating size assortment preferences indicated that lemon sharks aged 2-3 years (but not 0-1 years) preferred to spend more time with a group of size-matched individuals than unmatched ones. Furthermore, in species association tests lemon sharks spent significantly more time associating with conspecifics than with a sympatric heterospecific, the nurse shark, Ginglymostoma cirratum. These findings enhance our knowledge of group-joining decisions in sharks indicating that active mechanisms can play a role in the formation and composition of shark groups.

Original languageEnglish (US)
Pages (from-to)543-548
Number of pages6
JournalAnimal Behaviour
Issue number2
StatePublished - Aug 2009


  • elasmobranch
  • group dynamics
  • lemon shark
  • Negaprion brevirostris
  • predator
  • schooling
  • shoaling

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics


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