Resultados de la búsqueda
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Distribution and abundance of krill in the vicinity of Elephant Island in the 1992 austral summer
the western end; biomass was estimated to be 2. 2 million metric tons. During the second survey, the ... northeast end of Elephant Island into deeper water. Biomass in the smaller survey area was estimated to be ... Island had retracted considerably; biomass was estimated to be 0.4 million metric tons. During the final ...
Meeting Document : WG-CEMP-92/15 : Autor(es): R.P. Hewitt and D.A. Demer (USA)
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Accounting for food requirements of seabirds in fisheries management – the case of the South African purse-seine fishery
Abstract: In South Africa, four seabirds that feed mainly on sardine Sardinops sagax and anchovy ... of identifying and attaining target populations of predators that are dependent on forage fish prey ... are discussed. It is suggested that criteria used by The World Conservation Union to assess the ... conservation status of a species may prove useful in determining minimum viable populations, and that the use ...
Meeting Document : WG-EMM-04/28 : Autor(es): R.J.M Crawford (South Africa)
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MITIGATION OF SEABIRD CAPTURES DURING HAULING IN CCAMLR LONGLINE FISHERIES
captures that occur during hauling in CCAMLR longline fisheries. Haul captures were first recognised by ... suggests that there are two key aspects of effective BED, firstly that they provide a deterrent to birds ... landing near to the line as it is being hauled and secondly that birds are deterred from swimming or ... three types and recommendations are made on a Type III BED that was developed in Division 58.5.2 and ...
Meeting Document : WG-IMAF-09/14 : Autor(es): E. Reid, B. Sullivan (BirdLife International), K. Reid (Secretariat) and J. Clark (United Kingdom)
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Chilean NPOA-Seabirds: first steps
mitigation measures to be applied; the design of experiments to test specific combinations of mitigation ... be ready on December 2004. Author(s): C.A. Moreno and J. Arata (Chile) Title: Chilean NPOA-Seabirds ...
Meeting Document : WG-FSA-04/14 : Autor(es): C.A. Moreno and J. Arata (Chile)
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Parameters for the stochastic krill dynamics model (SKDM): selectivity and maturity
Scientific Committee. In the SKDM, if l50 for selectivity and maturity is to be sampled from a uniform ... distribution, and applied to a standard function width, then these should be lr50 = U[30,39] wr = 9mm for gear ...
Meeting Document : WG-Krill-94/04 : Autor(es): D.J. Agnew (Secretariat)
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Demography of the Korean blue crab, Portunus trituberculatus fishery exploited in the west coast of Korea and the East China Sea
of this fish stock was estimated to be about 22,400 tonnes per year and Fmsy to be 0.95. Author(s ...
Meeting Document : WS-CRAB-93/20 : Autor(es): J.-U. Lee and D.-H. An (Republic of Korea)
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Stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at South Georgia
conventional methods because the bulk of the adult population may be dispersed over a wide area in deep water ... whereas the Shag Rocks’ shelf may be a nursery ground for juveniles. An assessment of the stock has been ...
Meeting Document : WG-FSA-91/20 : Autor(es): I. Everson (United Kingdom)
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Survey database
Abstract: Last year, WG-FSA discussed further work on the survey database. It was agreed that the ... Secretariat would distribute documents and specifications to Members to allow them to create software that ... exports data from their databases in CCAMLR format. It was also agreed that Members should consider the ... data requirements of the new CCAMLR survey database, and ensure that all essential data are recorded ...
Meeting Document : WG-FSA-03/7 : Autor(es): Secretariat
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Problems in estimating population length at age from commercial catches, the Patagonian toothfish as an example
population and the commercial catch. Age-length keys can be produced by standardised random sampling of the ... and may be seriously biased. Through the use of a model, and using the Patagonian toothfish as an ...
Meeting Document : WG-FSA-01/17 : Autor(es): I. Everson (United Kingdom)
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A hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1
during January- March 1996 is presented in this paper. Key measurements to be taken during this survey ... data on krill distribution and abundance will be submitted to CCAMLR for the purpose of setting a ...
Meeting Document : WG-EMM-95/43 : Autor(es): Nicol, S.