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Snapper Pagrus auratus (Sparidae) home range dynamics: acoustic tagging studies in a marine reserve

Citation

Parsons, DM and Babcock, RC and Hankin, RKS and Willis, TJ and Aitken, JP and O'Dor, RK and Jackson, GD, Snapper Pagrus auratus (Sparidae) home range dynamics: acoustic tagging studies in a marine reserve, Marine Ecology Progress Series, 262 pp. 253-265. ISSN 0171-8630 (2003) [Refereed Article]

DOI: doi:10.3354/meps262253

Abstract

The home-range size and location of reef-associated snapper Pagrus auratus: Sparidae were investigated by use of a radio acoustic-positioning telemetry (RAPT) system. Tags were surgically implanted in 5 snapper that were subsequently monitored every minute for a period of 5 mo, and then intermittently over another 7 mo. Site fidelity was high amongst these fish, with home ranges not exceeding 650 m in diameter or 139 600 m2 in area. Eleven other snapper received tags by feeding and were tracked for periods of up to 2.5 d. Site fidelity was also high for these fish, with standardised estimates of home-range size not differing between the 2 groups. Home ranges overlapped considerably, indicating that the fish were not territorial. The location of the home ranges generally remained stable throughout the entire tracking period, although 1 fish relocated its home range by ∼220 m. A new method of home-range estimation was developed, which matched the level of detail provided by the RAPT system, to directly estimate the time spent in an area. The relevance of this method and the residential behaviour of these fish are discussed, with reference to the general understanding of animal behaviour, previous investigations into snapper movement, and the selective capacity that may be imposed by marine reserves on fish behaviour.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Animal Production and Animal Primary Products
Objective Group:Fisheries - Wild Caught
Objective Field:Fisheries - Wild Caught not elsewhere classified
Author:Jackson, GD (Dr George Jackson)
ID Code:29167
Year Published:2003
Deposited By:IASOS
Deposited On:2003-08-01
Last Modified:2011-10-28
Downloads:0

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