Resultados de la búsqueda
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Population dynamics of the wandering albatross Diomedea exulans at Marion Island: long-line fishing and environmental influences
Abstract: The subantarctic Prince Edward Islands (Marion and Prince Edward) support the largest ... breeding population of the Vulnerable wandering albatross Diomedea exulans. The numbers of birds breeding ... in the Marion Island population has fluctuated over the past three decades and appears to be the ... result of both real changes in the size of the population and changes in the proportion of the population ...
Meeting Document : WG-EMM-03/11 : Autor(es): D.C. Nel, F. Taylor, P.G. Ryan and J. Cooper (South Africa)
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Is our attempt to estimate biomass of Antarctic fish from a multi-species survey appropriate for all targeted species? Notothenia rossii in the Atlantic Ocean sector – revisited
Abstract: Notothenia rossii was the first target species of the fishery in the Southern Ocean ... . The species has been heavily fished at the beginning of the 1970’s. The closure of the fishery for ... this species was one of the first conservation measures CCAMLR adopted in 1985. Fish biomass within a ... . rossii at the same time. These surveys are conducted under the assumptions that the target fish species ...
Meeting Document : WG-FSA-03/12 : Autor(es): K.-H. Kock (Germany), M. Belchier (United Kingdom) and C.D. Jones (USA)
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Documentation for the CCAMLR survey database and length-density analysis
Abstract: Over the past two years, the CCAMLR Data Centre has undertaken a major overhaul of the ... research survey database and the routines used for length-density analyses. This overhaul was necessary ... because of the increasing quantity and diversity of survey data and their importance in the assessments of ... . While appropriate in earlier years, this procedure constricted the type of survey data that could be ...
Meeting Document : WG-FSA-00/11 : Autor(es): Secretariat
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THE RISK TO FISHERY PERFORMANCE ASSOCIATED WITH SPATIALLY RESOLVED MANAGEMENT OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) HARVESTING
Abstract: The ecosystem approach to fisheries attempts to define objectives for the target ... species, the wider ecosystem and, critically, the fishery itself. Proposals for implementing this approach ... will affect fishery performance. One metric of potential performance is the probability of encountering ... exploitable densities of the target species at the scale of fishing operations. The probability of ...
Meeting Document : WG-EMM-09/P10 : Autor(es): S. Hill, P. Trathan and D. Agnew
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Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during 1990/91 austral summer
Abstract: Acoustic and net sampling surveys for krill were conducted in the krill fishing area ... north of the South Shetland Islands from 18 January to 3 February 1991. Distinct offshore-inshore ... heterogeneities in abundance and maturity of krill were observed. The survey region was divided into four zones ... ; oceanic, slope frontal, neritic and nearshore zones. The mean density of krill was low in the oceanic zone ...
Meeting Document : WG-KRILL-92/26 : Autor(es): T. Ichii, H. Ishii and M. Naganobu (Japan)
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A updated population status model for the Patagonian toothfish, Dissostichus eleginoides, at Kerguelen Islands (Division 58.5.1) using CASAL
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... Islands (CCAMLR Division 58.5.1) was undertaken using the modelling software CASAL, based on different ... statistical and biological datasets: abundance estimation from the POKER 1 (2006) and 2 (2010) surveys ... -length data... CASAL is a simple, single-sex, single-area population model. The spatial complexity in the ...
Meeting Document : WG-FSA-12/09 : Autor(es): A. Rélot-Stirnemann (France)
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Committee for Environmental Protection: 2014 Annual Report to the Scientific Committee of CCAMLR
Abstract: Cooperation between the Scientific Committee of CCAMLR (SC-CAMLR) and the Committee for ... Environmental Protection (CEP) has been steadily increasing over the last few years to the mutual benefit of ... both. In order to avoid duplicate reporting between the two committees, and following discussions ... between the Chairs of the CEP and SC-CAMLR, the report of the CEP meeting is presented to SC-CAMLR by the ...
Meeting Document : SC-CAMLR-XXXIII/BG/13 : Autor(es): CEP Observer to SC-CAMLR (Dr P. Penhale, USA)
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Revised research plan for the exploratory longline fishery for Dissostichus spp. in Subarea 48.6 in 2014/15
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... extends from the SSRU 58.4.1C to the SSRU 58.4.2A, and the other one to the SSRU 58.4.1H. The population ... sizes would be vulnerable like the neighbour divisions if there is the same population. During the 2004 ...
Meeting Document : WG-FSA-14/37 : Autor(es): Delegation of the Republic of Korea
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Draft updated data collection plan for the Ross Sea toothfish fishery
Abstract: Data are collected for use in scientific research, the results of which are used to ... the goals the management wishes to achieve. The long-term goals of the Ross Sea fishery based on ... Article II of CCAMLR can be summarised as: the target fished population is above a level which ensures ... stable recruitment; the ecological relationships between harvested, dependent, and related populations ...
Meeting Document : WG-FSA-15/40 : Autor(es): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)
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Fish by-catch in the krill fishery: 2016 update
Abstract: Data on fish bycatch in the krill from Commercial catch data (95 513 hauls) and CCAMLR ... SISO data (11875 hauls) was used to examine the frequency of occurrence, proportion by mass, length ... -frequency distribution and geographic provenance of the key fish taxa reported. There was a high degree of ... overlap in the most frequently reported taxa in the C1 data and SISO data, with Lepidonothen larseni and ...
Meeting Document : WG-FSA-16/04 : Autor(es): CCAMLR Secretariat