Résultats de la recherche
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Progress report of Chilean research on albatross ecology and conservation
Abstract: Two species of albatross breed in Chile, namely Thalassarche melanophrys and T ... two different management regimes. This fact and the article XI of the CCAMLR Convention, suggests the ... need of harmonizing conservation measures in both areas. In this progress report we describe the main ... outcome of two research programs that are currently underway, which aim to establish if the effect of the ...
Meeting Document : WG-FSA-02/18 : Auteur(s): J. Arata and C.A. Moreno (Chile)
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Revision of the fishery–foraging overlap model
Abstract: The fishery-foraging model of Agnew and Phegan (1995) was reviewed by the Working Group ... was related to the total amount of krill removed from the foraging area during December to March. The ... Secretariat was tasked with the revision of the model, including modifications to the model in terms of both ... adjustments to temporal aspects of the underlying model and changes in the form of the index of overlap. The ...
Meeting Document : WG-EMM-98/05 : Auteur(s): Secretariat
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ANTARCTIC TOOTHFISH STOCK ASSESSMENT IN DIVISION 58.4.1 ON THE BASIS OF CATCH AND CPUE DATA
Abstract: An attempt to use reported catch and CPUE data based on data of observers in the ... assessment of Antarctic toothfish stock in Division 58.4.1 is made. Unlike some previous results obtained for ... this division (e.g. Agnew et al., 2008), the assessment was intended to be independent of estimates of ... toothfish stock biomass in the Ross Sea. As a result of implementation of an age-structured and a dynamic ...
Meeting Document : WG-FSA-09/14 Rev. 1 : Auteur(s): D. Vasilyev, K. Shust, A. Petrov, V. Tatarnikov and I. Istomin (Russia)
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A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80
uneconomic level. The extent of the L. murrayi grounds is examined on the basis of catch-per-unit-effort data ... . The species is largely confined to a bathymetric corridor of 500–700 m off South West Africa. Prior to ... crabs were present in small numbers over a much larger area. Over 90 per cent of the fishing effort was ... applied in this area of high concentration, accounting for almost 95 per cent by mass of the total catch ...
Meeting Document : WS-CRAB-93/21 : Auteur(s): R. Melville-Smith (South Africa)
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Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population
Abstract: The terrestrial environment of Signy Island, South Orkney Islands, maritime Antarctic ... past decade there has been a dramatic increase in the number of Antarctic fur seals Arctocephalus ... of seals were present on the island prior to the initiation of commercial hunting in the early 1820s ... . The impact that the continuing increase of these seals had made on the island's terrestrial and ...
Meeting Document : SC-CAMLR-VII/BG/06 : Auteur(s): R.I. Lewis Smith (United Kingdom)
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The ecosystem approach to managing fisheries: achieving conservation objectives for predators of fished species
approach for maintaining ecological relationships and providing for the recovery of depleted populations in ... ecosystem, (ii) what should be the conservation objectives for predators of fished species, and (iii) what ... account of uncertainties in knowledge of the structure of ecosystems. Estimates of production arising ... for management purposes because they integrate across a range of “ecosystem” effects and, as ...
Meeting Document : WG-EMM-12/P04 : Auteur(s): A.J. Constable
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ICED workshop and conference session on Southern Ocean foodwebs and scenarios of change
ecosystems in order to help inform management of Southern Ocean fisheries. ICED will convene a workshop and ... conference session in the near future in order to address these issues. The theme of the November 2013 ... workshop is “Southern Ocean food webs and scenarios of change”, and that of the June 2014 conference ... session is “Detecting, projecting and managing the impacts of change in Southern Ocean ecosystems”. We ...
Meeting Document : WG-EMM-13/13 : Auteur(s): R.D. Cavanagh on behalf of the international ICED Scientific Steering Committee
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Review of cetacean depredation in CCAMLR statistical subareas
Abstract: Depredation, the removal of fish from longlines by large marine predators, has been ... observed throughout the CCAMLR management area. Loss of fish through depredation can cause financial loss ... assessments through the underestimation of total mortality resulting from fishing and depredation combined. In ... other subareas the problem is known but not currently addressed. The areas in which the establishment of ...
Meeting Document : WG-SAM-15/27 : Auteur(s): M. Soeffker (United Kingdom) and P. Tixier (France)
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Proposal to modify Conservation Measure 24-02 regarding the use of a streamer line
Abstract: The activities of the CCAMLR to minimize incidental mortality of seabirds in the course ... of longline fishing or longline fishing research in the Convention Area are carried out by means of ... : a) use a streamer line and b) control of the longline weighting rate. Currently, according to CM 24 ... paragraph 2,3 and 4). Thus, the use of a streamer line becomes meaningless for any vessels using longline ...
Meeting Document : SC-CAMLR-XXXVI/BG/23 : Auteur(s): Delegation of the Russian Federation
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Estimating nest-level phenology and reproductive success of colonial seabirds using time-lapse cameras
Abstract: We wish to draw the attention of Members to an online application of the R code ... ) implements the methods of the paper and provides summary outputs for direct input to CEMP A6b and A9 eforms ... . The abstract of the paper follows: Summary 1. Collecting spatially extensive data on phenology and ... . 2. We describe a method to estimate nest-level breeding phenology and reproductive success of ...
Meeting Document : WG-EMM-18/P01 : Auteur(s): J.T. Hinke, A. Barbosa, L.M. Emmerson, T. Hart, M.A Juáres, M. Korczak-Abshire, G. Milinevsky, M. Santos, P.N. Trathan, G.M. Watters and C. Southwell