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With a little help from my friends: group orientation by larvae of a coral reef fish

Citation

Irisson, J-O and Paris, CB and Leis, JM and Yerman, MN, With a little help from my friends: group orientation by larvae of a coral reef fish, PLoS ONE, 10, (12) Article e0144060. ISSN 1932-6203 (2015) [Refereed Article]


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Copyright Statement

Copyright 2015 Irisson et al. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) http://creativecommons.org/licenses/by/4.0/

DOI: doi:10.1371/journal.pone.0144060

Abstract

Theory and some empirical evidence suggest that groups of animals orient better than isolated individuals. We present the first test of this hypothesis for pelagic marine larvae, at the stage of settlement, when orientation is critical to find a habitat. We compare the in situ behaviour of individuals and groups of 1012 Chromis atripectoralis (reef fish of the family Pomacentridae), off Lizard Island, Great Barrier Reef. Larvae are observed by divers or with a drifting image recording device. With both methods, groups orient cardinally while isolated individuals do not display significant orientation. Groups also swim on a 15% straighter course (i.e. are better at keeping a bearing) and 7% faster than individuals. A body of observations collected in this study suggest that enhanced group orientation emerges from simple group dynamics rather than from the presence of more skilful leaders.

Item Details

Item Type:Refereed Article
Keywords:larva, fish, orientation, schooling, group behaviour
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
Author:Leis, JM (Dr Jeff Leis)
ID Code:105068
Year Published:2015
Web of Science® Times Cited:11
Deposited By:IMAS Research and Education Centre
Deposited On:2015-12-05
Last Modified:2017-11-01
Downloads:436 View Download Statistics

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