A new metric for measuring condition in large predatory sharks

D. J. Irschick, Neil Hammerschlag

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A simple metric (span condition analysis; SCA) is presented for quantifying the condition of sharks based on four measurements of body girth relative to body length. Data on 104 live sharks from four species that vary in body form, behaviour and habitat use (Carcharhinus leucas, Carcharhinus limbatus, Ginglymostoma cirratum and Galeocerdo cuvier) are given. Condition shows similar levels of variability among individuals within each species. Carcharhinus leucas showed a positive relationship between condition and body size, whereas the other three species showed no relationship. There was little evidence for strong differences in condition between males and females, although more male sharks are needed for some species (e.g. G. cuvier) to verify this finding. SCA is potentially viable for other large marine or terrestrial animals that are captured live and then released.

Original languageEnglish (US)
Pages (from-to)917-926
Number of pages10
JournalJournal of Fish Biology
Volume85
Issue number3
DOIs
StatePublished - 2014

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shark
Galeocerdo cuvier
sharks
Leucas
Carcharhinus
Ginglymostoma cirratum
Carcharhinus limbatus
girth
anthropometric measurements
body length
body size
habitat use
habitats
measuring
animal
animals

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology, Evolution, Behavior and Systematics

Cite this

A new metric for measuring condition in large predatory sharks. / Irschick, D. J.; Hammerschlag, Neil.

In: Journal of Fish Biology, Vol. 85, No. 3, 2014, p. 917-926.

Research output: Contribution to journalArticle

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