منابع مشابه
Tuna stocks threatened
Urgent measures to save falling stocks of tuna in the world's second biggest tuna fishery — the eastern Pacific— have failed to be implemented, according to several environmental groups. Closure of the fishery, both by area and by time, was demanded by the groups to protect rapidly decreasing Pacific populations of yellowfin and bigeye tuna. But the annual meeting of the Inter American Tropical...
متن کاملThe Effect of Time-correlated Uncertainty on the Management of Yellowfin Tuna Stocks
Yellowfin assessments depend on accurate data on catch and on good indices of abundance that can be used to fit production models. Current catch statistics compiled by ICCAT seem accurate, but historic catches may have been at least partially under-reported. In this paper we investigate the effect that different historic patterns of under-reporting have in the assessment. We do this by fitting ...
متن کاملConsideration of target reference points for WCPO stocks with an emphasis on skipjack tuna
Executive BLOCKINSummary This paper is one of a suite of three pieces of work contracted to inform the WCPFC Management Objectives Workshop, planned to be held prior to WCPFC9. This paper focuses on target reference points, and the other two papers focus on limit reference points and harvest control rules. The presentation of this work to SC8 will provide the feedback necessary to undertake fur...
متن کاملDistinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
The yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), covers majority of the Philippines' tuna catch, one of the major fisheries commodities in the country. Due to its high economic importance sustainable management of these tunas has become an imperative measure to prevent stock depletion. Currently, the Philippine yellowfin tuna is believed to be part of a single stock of the greater WCPO...
متن کاملGenetic divergence between Atlantic and Indo-Pacific stocks of bigeye tuna (Thunnus obesus) and admixture around South Africa.
Two mitochondrial DNA segments of the bigeye tuna (Thunnus obesus) were amplified by polymerase chain reaction (PCR), and restriction fragment length polymorphism (RFLP) analyses of these segments were used for the genetic stock study. The variation in a segment flanking the ATPase and COIII genes was low; only two genotypes (alpha and beta) were detected by RsaI digestion. Yet a large differen...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2008
ISSN: 0960-9822
DOI: 10.1016/j.cub.2008.07.009