Resultados de la búsqueda
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Setting management goals using information from predators
be set for higher trophic levels – such as marine mammals, birds and fish. It briefly explores the ... general characteristics of objectives for higher trophic levels within the context of ecosystem-based ... management, noting that the emphasis for managing the effects of human activities on higher trophic levels is ... biased towards fisheries-based approaches rather than approaches that take into account the maintenance ...
Meeting Document : WG-EMM-07/P7 : Autor(es): A. Constable (Australia)
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Estimates of bird by-catch by IUU vessels in Subarea 48.3, 1998–2001
Abstract: Estimates of bird catches by IUU fishing made using the new method presented by Agnew ... and Kirkwood last year (WG-FSA-02/4 & 5) are updated to take account of the comments of the ... working group. Last year we suggested that the Isabel data from 1997 were rather atypical of bird catch ... rates in the illegal fishery, and that these were more likely to be similar to the bird catch rates made ...
Meeting Document : WG-FSA-03/56 : Autor(es): D.J. Agnew (United Kingdom)
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Estimating penguin populations using image analysis of colour aerial photography
Abstract: Penguin populations are potentially sensitive indicators of change in the Antarctic and ... sub-Antarctic and are used extensively to monitor changes in the marine ecosystem. Aerial photographic ... surveys may provide the most robust method for estimating breeding population size, particularly for large ... carried out manually by counting individual birds on highly magnified prints. Here we present the results ...
Meeting Document : WG-EMM-02/34 Text : Autor(es): P.N. Trathan (United Kingdom)
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CCAMLR’s next steps to stop IUU fishing
Abstract: Illegal, unreported and unregulated (IUU) fishing continues to be a problem in the ... Convention Area, undermining the intrinsic values of CCAMLR and of the Antarctic Treaty. In spite of the ... CCAMLR Members can take individually and collectively to eliminate IUU fishing in the CCAMLR Area. At ... for the effective implementation of those enhanced port State measures by developing countries. At the ...
Meeting Document : CCAMLR-XXX/BG/22 : Autor(es): Submitted by ASOC
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ANALYSIS OF ROSS SEA TAGGING AND RECAPTURE RATES
year and recapture year for tags released and recaptured in the same SSRUs on the slope of 88.1 was ... compiled for the years 2003-2006. Recapture rate was expressed as tags captured/tags released/fish scanned ... (caught), all in numbers. 2. The overall size of the dataset was 734 combinations of release year ... has not been consistent enough between nations to allow the analysis to be definitive. In many cases ...
Meeting Document : WG-SAM-08/07 : Autor(es): D.J. Agnew (UK)
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Assessment of escape mortality of Antarctic krill (Euphausia superba) in trawls
Abstract: The overall purpose of this study was to estimate the mortality rate of Antarctic krill ... (Euphausia superba) that escape from the most common mesh size used in the current commercial fishery. The ... experiment was carried out on the krill fishing grounds off South Orkney Islands (60°35’S, 45°30’W), during ... January-February 2014. The method applied consisted of a covered trawl codend system for retaining ...
Meeting Document : WG-EMM-14/14 : Autor(es): B.A. Krafft (Norway) and L.A. Krag (Denmark)
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Standardisation of commercial CPUE
Abstract: This paper reports analysis of CPUE data on cod in the Barents Sea. The potential of ... vessel trawling operations take place at acceptable proximity in time and space. The methodological ... approach might be of interest for the longline fishery for tothfish as well as for the trawl fishery on ... space, and their fishing power relative to a standard vessel is calculated. The model is applied to a ...
Meeting Document : WG-SAM-15/P01 : Autor(es): A. Salthaug and O.R. Godø
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Antarctic krill fisheries management: "What's next?"
Abstract: The move from Stage 1 to 2 in feedback management (FBM) for the Antarctic krill fishery ... proposals and to improve the collection of data needed to implement them. In particular, the enhancement of ... outstanding need is the ability to quantify krill flux, a factor that creates considerable uncertainty for ... management of the fishery. Finally, CCAMLR should re-examine the data sampling program for the krill observer ...
Meeting Document : SC-CAMLR-XXXV/BG/18 : Autor(es): Submitted by ASOC
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Continuation proposal of a multi-Member longline survey on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b in 2018/19 by Japan and France
Abstract: Japan and France propose a plan to continue investigate the populations of Patagonian ... toothfish (Dissostichus eleginoides) in the Division 58.4.4b during the next fishing season (2018/19) from ... 2017/18 onwards, using standardized longline gear, and established tagging techniques. The proposed ... research is relevant and take into account issues raised by the Scientific Committee (SC-CAMLR-XXXIII ...
Meeting Document : WG-SAM-18/03 : Autor(es): Delegations of Japan and France
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan and South Africa
Abstract: Japan and South Africa propose to continue investigating the population structure and ... various demographic parameters of Antarctic toothfish (Dissostichus mawsoni) in the Subarea 48.6 in 2018 ... /19 using standardized longline gear, established tagging techniques, and pop-up tags. The proposed ... research is pertinent to issues raised by the Scientific Committee (SC-CAMLR-XXXV, paragraph 3.3.252-3.265 ...
Meeting Document : WG-SAM-18/04 : Autor(es): Delegations of Japan and South Africa