Guo C. B., Fu C. H., Olsen N., Xu Y., Gruss A., Liu H. Z., Verley Philippe, Shin Yunne-Jai. (2020). Incorporating environmental forcing in developing ecosystem-based fisheries management strategies. ICES Journal of Marine Science, 77 (2), p. 500-514. ISSN 1054-3139.
Titre du document
Incorporating environmental forcing in developing ecosystem-based fisheries management strategies
Guo C. B., Fu C. H., Olsen N., Xu Y., Gruss A., Liu H. Z., Verley Philippe, Shin Yunne-Jai
Source
ICES Journal of Marine Science, 2020,
77 (2), p. 500-514 ISSN 1054-3139
This study incorporated two pathways of environmental forcing (i.e. "larval mortality forcing" and "somatic growth forcing") into an end-to-end ecosystem model (Object-oriented Simulator of Marine ecOSystEms, OSMOSE) developed for the Pacific North Coast Integrated Management Area (PNCIMA) off western Canada, in order to evaluate alternative fisheries management strategies under environmental changes. With a suite of ecosystem-level indicators, the present study first compared the ecosystem effects of different pathways of environmental forcing scenarios; and then evaluated the alternative fisheries management strategies which encompassed a series of fishing mortality rates relative to F-MSY (the fishing mortality rate that produces maximum sustainable yield) and a set of precautionary harvest control rules (HCRs). The main objectives of this study were to (i) explore the ecosystem effects of different environmental forcing scenarios; (ii) identify the impacts of different fishing mortality rates on marine ecosystem structure and function; and (iii) evaluate the ecosystem-level performance of various levels of precautionary HCRs. Results indicated that different pathways of environmental forcing had different ecosystem effects and incorporating appropriate HCRs in the fisheries management process could help maintain ecosystem health and sustainable fisheries. This study provides important information on future fisheries management options within similar marine ecosystems that are facing global changes.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Ecologie, systèmes aquatiques [036]
;
Ressources halieutiques [040]
