Publications des scientifiques de l'IRD

Fu C.H., Perry R.I., Shin Yunne-Jai, Schweigert J., Liu H.Z. (2013). An ecosystem modelling framework for incorporating climate regime shifts into fisheries management. In : Masson D. (ed.), Perry R.I. (ed.), Mackas D. (ed.). Strait of Georgia Ecosystem Research Initiative (ERI). Progress in Oceanography, 115 (no spécial), p. 53-64. ISSN 0079-6611.

Titre du document
An ecosystem modelling framework for incorporating climate regime shifts into fisheries management
Année de publication
2013
Type de document
Article référencé dans le Web of Science WOS:000323361900006
Auteurs
Fu C.H., Perry R.I., Shin Yunne-Jai, Schweigert J., Liu H.Z.
In
Masson D. (ed.), Perry R.I. (ed.), Mackas D. (ed.), Strait of Georgia Ecosystem Research Initiative (ERI)
Source
Progress in Oceanography, 2013, 115 (no spécial), p. 53-64 ISSN 0079-6611
Ecosystem-based approaches to fisheries management (EBM) attempt to account for fishing, climate variability and species interactions when formulating fisheries management advice. Ecosystem models that investigate the combined effects of ecological processes are vital to support the implementation of EBM by assessing the effectiveness of management strategies in an ecosystem context. In this study, an individual-based ecosystem model was used to demonstrate how species at different trophic levels and of different life histories responded to climate regimes and how well different single- or various multi-species fisheries at different intensities perform in terms of human benefits (yield) and trade-offs (fishery closures) as well as their impacts on the ecosystem. In addition, other performance indicators were also used to evaluate management strategies. The simulations indicated that under no fishing, each species responded to the regimes differently due to different life history traits and different trophic interactions. Fishing at the level of natural mortality (F = M) produced the highest yields within each fishery, however, an F adjusted for the current productivity conditions (regime) resulted in much fewer fishery closures compared with F = M, indicating the advantage of implementing a policy of a regime-specific F from the stand point of conservation and fishery stability. Furthermore, a regime-specific F strategy generally resulted in higher yield and fewer fishery closures compared with F = 0.5M. Other performance indicators also pointed to the advantage of using a regime-specific F strategy in terms of the stability of both ecosystem and fishery production. As a specific example, fishing the predators of Pacific herring under all multi-species fisheries scenarios increased the yield of Pacific herring and reduced the number of herring fishery closures. This supports the conclusion that an exploitation strategy which is balanced across all trophic levels produces better outcomes, as advocated by other researchers. Crown Copyright (c) 2013 Published by Elsevier Ltd. All rights reserved.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020] ; Ecologie, systèmes aquatiques [036] ; Ressources halieutiques [040]
Description Géographique
CANADA
Localisation
Fonds IRD [F B010060574]
Identifiant IRD
fdi:010060574
Contact