Restricted grouper reproductive migrations support community-based management

Abstract : Conservation commonly requires trade-offs between social and ecological goals. For tropical small-scale fisheries, spatial scales of socially appropriate management are generally small— the median no-take locally managed marine area (LMMA) area throughout the Pacific is less than 1 km 2. This is of particular concern for large coral reef fishes, such as many species of grouper, which migrate to aggregations to spawn. Current data suggest that the catchment areas (i.e. total area from which individuals are drawn) of such aggregations are at spatial scales that preclude effective community-based management with no-take LMMAs. We used acoustic telemetry and tag-returns to examine reproductive migrations and catchment areas of the grouper Epinephelus fuscoguttatus at a spawning aggregation in Papua New Guinea. Protection of the resultant catchment area of approximately 16 km 2 using a no-take LMMA is socially untenable here and throughout much of the Pacific region. However, we found that spawning migrations were skewed towards shorter distances. Consequently, expanding the current 0.2 km 2 no-take LMMA to 1–2 km 2 would protect approximately 30–50% of the spawning population throughout the non-spawning season. Contrasting with current knowledge, our results demonstrate that species with moderate reproductive migrations can be managed at scales congruous with spatially restricted management tools.
Document type :
Journal articles
Complete list of metadatas

Cited literature [40 references]  Display  Hide  Download

https://hal-univ-perp.archives-ouvertes.fr/hal-01297717
Contributor : Olivier Savoyat <>
Submitted on : Tuesday, April 5, 2016 - 10:16:11 AM
Last modification on : Tuesday, August 13, 2019 - 12:02:09 PM
Long-term archiving on : Wednesday, July 6, 2016 - 11:51:19 AM

File

150694.full.pdf
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Collections

Citation

Peter A. Waldie, Glenn R. Almany, Tane H. Sinclair-Taylor, Richard J. Hamilton, Tapas Potuku, et al.. Restricted grouper reproductive migrations support community-based management. Royal Society Open Science, The Royal Society, 2016, 3, pp.150694. ⟨10.1098/rsos.150694⟩. ⟨hal-01297717⟩

Share

Metrics

Record views

1244

Files downloads

207