New Pacific Bigeye Tuna Projects
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چکیده
In October 1998, the Pelagic Fisheries Research Program solicited new projects to be implemented in 1999. Approximately 25 letters of intent to submit proposal were received. The authors of the most promising letters were invited to submit full research proposals. External scientists reviewed the proposals, and approximately 15 were considered worthy of support. Financial constraints did not permit funding of all the projects. After a painstaking process of elimination, seven projects were selected, and work is expected to begin on these projects in mid 1999. This issue of the PFRP newsletter describes two of these new projects, both directed towards understanding the biology and population and fishery dynamics of Pacific bigeye tuna.
منابع مشابه
SCIENTIFIC COMMITTEE FOURTH REGULAR SESSION 11-22 August 2008 Port Moresby, Papua New Guinea EFFECTS OF GEAR CHARACTERISTICS ON THE PRESENCE OF BIGEYE TUNA (Thunnus obesus) IN THE CATCHES OF THE PURSE-SEINE FISHERY OF THE EASTERN PACIFIC OCEAN WCPFC-SC4-2008/FT-IP-1
Effects of gear characteristics on the presence of bigeye tuna (Thunnus obesus) in the catches of the purse-seine fishery of the eastern Pacific Ocean Overfishing of bigeye tuna in the eastern Pacific Ocean has motivated a search for a practical means of reducing the catch of bigeye tuna in mixed species aggregations. To explore the effects of gear characteristics on the catch of bigeye tuna, a...
متن کاملInter-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 کاملEffects of Gear Characteristics on the Presence of Bigeye Tuna (thunnus Obesus) in the Catches of the Purse-seine Fishery of the Eastern Pacific
Effects of gear characteristics on the presence of bigeye tuna (Thunnus obesus) in the catches of the purse-seine fishery of the eastern Pacific Overfishing of bigeye tuna in the eastern Pacific Ocean has motivated a search for pratical means of reducing bigeye catch. We develop a classification algorithm for the presence/absence of bigeye in purse-seine sets on floating objects, the dominant m...
متن کاملAn update of the application of the A-SCALA method to bigeye tuna in the western and central Pacific Ocean
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 کاملGenetic diversity and historical demography of Atlantic bigeye tuna (Thunnus obesus).
Bigeye (Thunnus obesus) is a large, pelagic, and migratory species of tuna that inhabits tropical and temperate marine waters worldwide. Previous studies based on mitochondrial RFLP data have shown that bigeye tunas from the Atlantic Ocean are the most interesting from a genetic point of view. Two highly divergent mitochondrial haplotype clades (I and II) coexist in the Atlantic Ocean. One is a...
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