Preliminary forecasts of Pacific bigeye tuna population trends under the A2 IPCC scenario
نویسندگان
چکیده
MEMMS (Marine Ecosystems Modelling and Monitoring by Satellites), CLS Satellite Oceanography Division, Ramonville, France b PFRP (Pelagic Fisheries Research Program), University of Hawaii at Manoa, Honolulu, HI, USA c LSCE/IPSL, UMR 1572 CE Saclay, Gif sur Yvette, France Oceanic Fisheries Programme, Secretariat of the Pacific Community, Noumea, New Caledonia e ESSIC, Earth Science System Interdisciplinary Center, University of Maryland, USA
منابع مشابه
Inter-american Tropical Tuna Commission Scientific Working Group 2 Meeting Review of Stock Assessments
AGENDA 1. Welcome, introductions, consideration of agenda 2. Review of stock assessments: a. Methods b. Species composition sampling progress c. Results i. Yellowfin ii. Skipjack iii. Bigeye iv. Bluefin (paper only) v. Blue marlin vi. Albacore (paper only) vii. Others 3. Ecosystem modeling 4. Summary and recommendations 5. Other business 6. Adjournment DOCUMENTS A1 The surface fishery for tunas...
متن کاملInter-american Tropical Tuna Commission Third Meeting of the Scientific Working Group Review of Stock Assessments Chairman’s Report (revised)
A1 Draft: The fishery for tunas and tuna-like fishes in the eastern Pacific Ocean in 2001, and outlook for 2002 A2 Draft: Status of yellowfin tuna in the eastern Pacific Ocean in 2001 and outlook for 2002 A3 Draft: Status of skipjack tuna in the eastern Pacific Ocean in 2001 and outlook for 2002 A4 Draft: Status of bigeye tuna in the eastern Pacific Ocean in 2001 and outlook for 2002 A5 Draft: ...
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An age-structured statistical catch-at-length analysis (A-SCALA) is applied to the bigeye tuna population in the western central Pacific Ocean (WCPO). The results suggest that the biomass at the start of 2002 is below the level that is required to produce maximum sustainable yield (MSY) and will reduce under average conditions and recent effort levels. The recent average weight of bigeye in the...
متن کاملAnalyses of Japanese Longline Operational Catch and Effort for Bigeye Tuna in the Wcpo
Analyses of operational-level, longline catch and effort data for bigeye tuna in the Western and Central Pacific Ocean were carried out under an agreement between the Secretariat of the Pacific Community and the Japan National Research Institute of Far Seas Fisheries. The objectives of the collaboration were to standardize bigeye CPUE, and to estimate the historical trend of longline catchabili...
متن کاملApplication of a habitat-based model to estimate effective longline fishing effort and relative abundance of Pacific bigeye tuna (Thunnus obesus)
A new habitat-based model is developed to improve estimates of relative abundance of Pacific bigeye tuna (Thunnus obesus). The model provides estimates of ‘effective’ longline effort and therefore better estimates of catch-per-unit-of-effort (CPUE) by incorporating information on the variation in longline fishing depth and depth of bigeye tuna preferred habitat. The essential elements in the mo...
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تاریخ انتشار 2010