Decadal-scale rebuilding of predator biomass in Philippine marine reserves

Russ, Garry R., and Alcala, Angel C. (2010) Decadal-scale rebuilding of predator biomass in Philippine marine reserves. Oecologia, 163 (4). pp. 1103-1106.

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No-take marine reserves (NTMRs) provide hope that local carrying capacity may be partially restored if reserves are protected long enough. How long is long enough? We assess the duration of protection required for populations of large predatory reef fish in marine reserves to attain new steady states. We monitored biomass of large predatory fish in two marine reserves at Sumilon and Apo Islands, Philippines, almost annually for 26 years (1983–2009), and fit a logistic model to the data. As duration of reserve protection increased, biomass of predatory fish approached an asymptote, although the models suggest that 20–40 years of protection is required to attain new steady states. Thus, for local carrying capacity to be rebuilt, no-take protection must be effective on decadal timescales.

Item ID: 16936
Item Type: Article (Research - C1)
ISSN: 1432-1939
Keywords: Biomass; carrying capacity; logistic model; marine reserves Philippines; predatory reef fish
Date Deposited: 15 May 2011 11:40
FoR Codes: 06 BIOLOGICAL SCIENCES > 0602 Ecology > 060205 Marine and Estuarine Ecology (incl Marine Ichthyology) @ 50%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070499 Fisheries Sciences not elsewhere classified @ 50%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8302 Fisheries - Wild Caught > 830204 Wild Caught Fin Fish (excl. Tuna) @ 40%
96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960507 Ecosystem Assessment and Management of Marine Environments @ 60%
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