Publications des scientifiques de l'IRD

Van Wynsberge S., Andréfouët Serge, Gaertner-Mazouni Nabila, Remoissenet G. (2015). Conservation and resource management in small tropical islands : trade-offs between planning unit size, data redundancy and data loss. Ocean and Coastal Management, 116, p. 37-43. ISSN 0964-5691.

Titre du document
Conservation and resource management in small tropical islands : trade-offs between planning unit size, data redundancy and data loss
Année de publication
2015
Type de document
Article référencé dans le Web of Science WOS:000364436700005
Auteurs
Van Wynsberge S., Andréfouët Serge, Gaertner-Mazouni Nabila, Remoissenet G.
Source
Ocean and Coastal Management, 2015, 116, p. 37-43 ISSN 0964-5691
Resource management and conservation require the definition of planning units (PUs), i.e., the spatial domain where management decisions are applied. PUs are either pre-established in size and shape following management constraints or are data driven(DDPUs) by overlay of multidisciplinary data layers. The trade-offs between these two approaches have not been investigated previously for small tropical islands and their characteristics. Here, we use resource density, fishing pressure and susceptibility to mortality for a giant clam fishery in a small French Polynesia atoll to discuss the suitability and impact of the two approaches in conservation management. Aggregation to pre-established PU grids highly affected data even for PU as small as 2500 m(2), with higher loss of spatial information for density and fishing effort. By contrast, DDPU rendered well small scale patterns of interest but reduced redundancy. Our results stress the importance of considering the initial patterns of data in the definition of planning units, and we suggest a 3 steps process to identify adequate trade-offs between PU size, PU redundancy and data loss to properly draw practical recommendations for small islands.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Ressources halieutiques [040]
Description Géographique
POLYNESIE FRANCAISE ; PACIFIQUE ; ZONE TROPICALE
Localisation
Fonds IRD [F B010065463]
Identifiant IRD
fdi:010065463
Contact