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Type: Journal article
Title: Mechanisms of population structuring in giant Australian cuttlefish Sepia apama
Author: Payne, N.
Snelling, E.
Semmens, J.
Gillanders, B.
Citation: PLoS One, 2013; 8(3):1-7
Publisher: Public Library of Science
Issue Date: 2013
ISSN: 1932-6203
Statement of
Nicholas L. Payne, Edward P. Snelling, Jayson M. Semmens, Bronwyn M. Gillanders
Abstract: While a suite of approaches have been developed to describe the scale, rate and spatial structure of exchange among populations, a lack of mechanistic understanding will invariably compromise predictions of population-level responses to ecosystem modification. In this study, we measured the energetics and sustained swimming capacity of giant Australian cuttlefish Sepia apama and combined these data with information on the life-history strategy, behaviour and circulation patterns experienced by the species to predict scales of connectivity throughout parts of their range. The swimming capacity of adult and juvenile S. apama was poor compared to most other cephalopods, with most individuals incapable of maintaining swimming above 15 cm s−1. Our estimate of optimal swimming speed (6–7 cm s−1) and dispersal potential were consistent with the observed fine-scale population structure of the species. By comparing observed and predicted population connectivity, we identified several mechanisms that are likely to have driven fine-scale population structure in this species, which will assist in the interpretation of future population declines.
Keywords: Animals
Behavior, Animal
Population Dynamics
Rights: Copyright: © 2013 Payne et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
DOI: 10.1371/journal.pone.0058694
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Appears in Collections:Aurora harvest
Earth and Environmental Sciences publications

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