Résultats de la recherche
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Future work of the Working Group on Ecosystem Monitoring and Management and implications for the format of its meetings
is provided by a yield model,which assumes a freely distributed krill population, homogeneously ... the information necessary to implement amore robust ecosystem approach to management. A strategic plan ... progresshas been made on a number of contributing initiatives. WG-EMM currently considers awide range of ... information in order to derive a qualitative description of the status of theecosystem and appropriate ...
Meeting Document : SC-CAMLR-XIX/06 : Auteur(s): Convener WG-EMM
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Modelling the consequences of Antarctic krill harvesting of Antarctic fur seals
). A single species yield model is currently being used by the CCAMLR Scientific Committee to recommend ... an annual krill catch limit, which is expressed as a proportion (??= 0.116) of a survey biomass ... estimate. This approach takes the needs of predators into account in only a crude way by assuming that a ... predators. A krill-predator modeling procedure is presented that could be used to directly assess the impact ...
Meeting Document : WG-EMM-01/66 : Auteur(s): R.B. Thomson, D.S. Butterworth (South Africa), I.L. Boyd and J.P. Croxall (United Kingdom)
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The Patagonian toothfish: biology, ecology and fishery
Abstract: Patagonian toothfish (Dissostichus eleginoides) is a large notothenioid fish that ... toothfish are a long-lived species (> 40 years), which initially grow rapidly on the shallow shelf areas ... , biochemistry, parasite fauna and tagging indicate a high degree of isolation between populations in the Indian ... . 1000 m) during the austral winter, producing pelagic eggs and larvae. Larvae switch to a demersal ...
Meeting Document : WG-FSA-10/P05 : Auteur(s): M.A. Collins, P. Brickle, J. Brown and M. Belchier
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Results of the fifth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2016, and notification for continuation in 2017
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... results of the fifth survey in the time series. The objectives of this survey were: (1) to continue a time ... 881.L in the southern Ross Sea (Strata A–C) using standardised gear in a standardised manner; and (2 ...
Meeting Document : WG-SAM-16/14 : Auteur(s): A. Dunn, C. Jones, S. Mormede and S. Parker
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Cruise Report – Research Project: Demersal finfish distribution, abundance, and their biological characteristics in Statistical Subareas 48.1 (northern area) and 48.2
Abstract: A finfish survey was completed using bottom trawl fishing gear according to a random ... , 2012) and on shelf areas of the South Orkney Islands according to a subsample of stations sampled by ... , 2018, primarily using a Hardbottom Snapper trawl (NET Systems, Inc.), previously used by the US AMLR ... Program, Southwest Fisheries Science Center, National Marine Fisheries Service. A total of 36 hauls were ...
Meeting Document : WG-SAM-18/25 : Auteur(s): Delegation of Chile
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Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
Abstract: This report presents results from a pilot study to determine the feasibility of ... issues with data quality were interference from another echosounder, and the occurrence of a double ... bottom echo caused by too high a ping rate. All line recordings were in water over 1000 m deep. Because ... deadzone would be over 50 m high for a sea-bed with a slope of 20º. The problem of the acoustic deadzone ...
Meeting Document : WG-FSA-03/28 : Auteur(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97
Abstract: During the Antarctic season 1996/97 a beach debris survey was carried out on the ... beaches of Cape Shirrefl Livingston Island, South Shetland Islands, where a total of 1 609 articles with a ... total of 49.03 Kg were obtained. Besides, from a neighbouring area of Cape Shirreff, were collected 178 ... ) with a 94.30/.), followed by glass (67) with a 4.20/0; metal (19 pieces) 1.20/0; and paper (6 pieces ...
Meeting Document : CCAMLR-XVI/BG/35 : Auteur(s): Delegation of Chile
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Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni South Sandwich Islands (Subarea 48.4)
based on the catch-at-length-based Subarea 48.3 CASAL model (Hillary et al., 2006) though with two ... as a new fishery in 1992/93 following notifications from Chile and the USA (SC-CAMLR-XI, Annex 5 ... , paragraph 6.22), and the adoption of Conservation Measure 44/XI, which set a precautionary catch limit for ... , paragraph 6.2). In addition, a Bulgarian-flagged longliner fished in November and December 1992 and ...
Document : Site Section: Publications
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Proposed revision to the estimation of fisheries footprints
Abstract: A revised approach to the estimation of longline fisheries footprints is presented. The ... method uses a data-derived estimate of the uncertainty around the locations of longlines to define a ... buffer around these lines. Within a georeferenced framework, buffered lines are then matched to a 10km ... grid. The proportion of the area of each grid cell that is covered by buffered lines is then used as a ...
Meeting Document : WG-FSA-2019/67 : Auteur(s): CCAMLR Secretariat
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Report on attendance at the Fourth Meeting of the Committee for Environmental Protection Under the Madrid Protocol
issues of relevance to SC-CAMLR are: (1) A report of an open-ended intersessional contact group of the ... CEP reported on progress to find appropriate criteria for and a mechanism to ensure consistency in ... , the designation of Antarctic Specially Protected Species. The contact group will continue under a ... specified Terms of Reference; (2) A report from an intersessional contact group on Diseases of Antarctic ...
Meeting Document : CCAMLR-XX/BG/03 : Auteur(s): Chair of the CCAMLR Scientific Committee