Multivariate life-history indices of exploited coral reef fish populations used to measure the performance of no-take zones in a marine protected area

Begg, Gavin A., Mapstone, Bruce D., Williams, Ashley J., Adams, Samantha, Davies, Campbell R., and Lou, Dong C. (2005) Multivariate life-history indices of exploited coral reef fish populations used to measure the performance of no-take zones in a marine protected area. Canadian Journal of Fisheries and Aquatic Sciences, 62 (3). pp. 679-692.

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Abstract

We investigate the use of multivariate life-history indices to assess the performance of no-take zones with respectto ameliorating the impacts of harvest on exploited coral reef fish populations in the Great Barrier Reef Marine Park. A range of life-history parameters were estimated for the two major target species of the Great Barrier Reef (GBR) line fishery, common coral trout (Plectropomus leopardus) and red throat emperor (Lethrinus miniatus), collected from five adjacent reefs (three of which were closed to all forms of fishing) in each of three geographically dispersed regions between 1995 and 1998. Life-history parameters were used to compare the status of populations on open and closed reefs over regions and years. Principal components (PC) analyses were used to effectively reduce the number of parameters to four significant PCs for each species, accounting for 84% and 94% of the total variation in the data for common coral trout and red throat emperor, respectively. We were able to clearly identify those populations that were sampled from reefs open or closed to fishing based on the multivariate descriptors of life-history parameters. The concurrent use of several life-history indices maximised our potential to differentiate changes related to no-take zones from background variation.

Item ID: 426
Item Type: Article (Research - C1)
ISSN: 1205-7533
Keywords: Plectropomus leopardus, Lethrinus miniatus, Great Barrier Reef Marine Park, Multivariate analysis, No take zones, Life history parameters
Additional Information:

Originally published in the Canadian Journal of Fisheries and Aquatic Sciences (2005, Vol.62,Issue 3). http://pubs.nrc-cnrc.gc.ca/rp-ps/journalDetail.jsp?jcode=cjfas&lang=eng

Date Deposited: 26 Sep 2006
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070402 Aquatic Ecosystem Studies and Stock Assessment @ 100%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070403 Fisheries Management @ 0%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830299 Fisheries- Wild Caught not elsewhere classified @ 100%
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