Population dynamics of roundjaw bonefish Albula glossodonta at a remote coralline Atoll inform community‐based management in an artisanal fishery

Fisheries management requires knowledge on the population dynamics of exploited stocks. To that end, the present study used a mark–recapture approach to characterise the population demographics of roundjaw bonefish Albula glossodonta (Forsskål) and their interaction with a data‐limited fishery on An...

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Veröffentlicht in:Fisheries management and ecology Jg. 27; H. 2; S. 200 - 214
Hauptverfasser: Filous, Alexander, Lennox, Robert J., Eveson, Paige, Raveino, Raphael, Clua, Eric E. G., Cooke, Steven J., Danylchuk, Andy J.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Oxford Wiley Subscription Services, Inc 01.04.2020
Wiley-Blackwell
Schlagworte:
Albula glossodonta
Albula vulpes
Archipelagoes
Artisanal fisheries
Atolls
Biodiversity and Ecology
case studies
Corridors
demographic statistics
Demographics
Demography
Environmental Sciences
Fish
Fisheries
Fisheries management
Fishery data
Fishery management
Fishing
Fishing mortality
Fork length
French Polynesia
integrated Brownie–Petersen model
lagoon fisheries
Lunar phases
Marine environment
mark-recapture studies
Mark–recapture
migratory behavior
mortality
Population dynamics
Sexual maturity
Spawning
spawning aggregations
Spawning behavior
Stocks
traditional ecological knowledge
traditional technology
Trap nets
French Polynesia
Mark–recapture
Spawning aggregations
lagoon fisheries
Traditional ecological knowledge
integrated Brownie–Petersen model
French Polynesia
ISSN:0969-997X, 1365-2400
Online-Zugang:Volltext
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Zusammenfassung:Fisheries management requires knowledge on the population dynamics of exploited stocks. To that end, the present study used a mark–recapture approach to characterise the population demographics of roundjaw bonefish Albula glossodonta (Forsskål) and their interaction with a data‐limited fishery on Anaa Atoll in the Tuamotu Archipelago of French Polynesia. Over the course of the study, 2,509 bonefish were tagged and 12.3% were recaptured. The L∞ of bonefish was estimated at 71 cm fork length (FL) with a K of 0.17, based on changes in FL between capture events. Artisanal fish traps located in the migratory corridors of the atoll accounted for 94% of recaptures and these movements occurred during the waning moon. Fishing mortality increased as bonefish reach sexual maturity, recruiting to the trap fishery at age 4 with the onset of spawning behaviour. Bonefish abundance between ages 3 and 5 was estimated to be 29,079 individuals. This case study demonstrated the utility of mark–recapture in filling knowledge gaps that impede the management of data‐limited fisheries. Ultimately, these results supported the creation of an Educational Managed Marine Area and the resurgence of rahui (seasonal closure) to manage this fishery.
Bibliographie:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0969-997X
1365-2400
DOI:10.1111/fme.12399