Size isn't everything: movements, home range, and habitat preferences of eastern blue gropers (Achoerodus viridis) demonstrate the efficacy of a small marine reserve. Issue 2 (6th February 2014)

• Record Type: Journal Article
• Authors: Lee, Kate A.; Huveneers, Charlie; Macdonald, Tracey; Harcourt, Robert G.
• Is Part Of: Aquatic conservation. Volume 25:Issue 2(2015)
• Page Start: 174
• Page End: 186
• Publication Date: 2014-02-06
• Subjects: Aquatic ecology -- Periodicals; Conservation of natural resources -- Periodicals; Aquatic resources -- Periodicals; 333.95216
• DOI: 10.1002/aqc.2431
• Languages: English
• ISSNs: 1052-7613

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <p> <list id="aqc2431-list-0001" list-type="order"> <list-item id="aqc2431-li-0001"> <p>Marine protected areas (MPAs) are important conservation tools, however, efficacy can, in part, be a function of their size in relation to the home range of the target species.</p> </list-item> <list-item id="aqc2431-li-0002"> <p>The eastern blue groper, <italic>Achoerodus viridis</italic>, is a long‐lived, protogynous hermaphrodite, and an 'iconic' marine species in eastern Australia, with several MPAs having been established specifically for their protection.</p> </list-item> <list-item id="aqc2431-li-0003"> <p>Site fidelity, habitat use, and home range size were assessed for 29 adult eastern blue gropers monitored for up to 374 days using passive acoustic telemetry within and around a small marine reserve.</p> </list-item> <list-item id="aqc2431-li-0004"> <p>The fish exhibited long residency times and no movement was recorded between adjacent reefs, suggesting sand acts as a natural barrier to movement.</p> </list-item> <list-item id="aqc2431-li-0005"> <p>Core ranges were calculated using 50% kernel utilization distributions (KUD) and estimated between 0.005 and 0.092 km<sup>2</sup>. Males had larger core ranges than females or fish of indeterminate sex. There was no statistical difference between the breeding/non‐breeding seasons.</p> </list-item> <list-item id="aqc2431-li-0006"> <p>Home ranges were calculated using 95% KUD and ranged between 0.03 and 0.54 km<sup>2</sup>. Home range size was largest for males and significantly larger for all sexes in the breeding season. Fish tagged in the 'no‐take' area of the MPA had smaller home ranges than fish tagged in the area where fishing is permitted.</p> </list-item> <list-item id="aqc2431-li-0007"> <p>This study indicates that even relatively small MPAs can provide effective protection for adult eastern blue groper, supporting the proposition that large reef dwellers with long residency times can be used as flagship species to gain public support for the designation of MPAs.</p> </list-item> </list> Copyright © 2014 John Wiley & Sons, Ltd.</p> </abstract>