Resultados de la búsqueda
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2017/18
biological characterisation of the fishery shows a truncation of the right-hand limb of the age distribution ... between 2004 and 2014. No age data are currently available after 2014. We recommend that further ageing of ... slightly different as the effective tag release and recaptures (to account for different levels of tag ... estimate using effective tagging survival and tag detection rates and allowing a maximum of 20% change in ...
Meeting Document : WG-FSA-18/36 : Autor(es): S. Mormede and S. Parker
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Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat update 2018
Abstract: This paper presents an update of the metrics of capacity and capacity utilisation ... not indicate an excess of capacity in the fishery. Interpretation of data for 2018 should be made in ... the context of changes in the area of operation and the application of fishery closures in the ... exploratory fishery in Subarea 88.1. Author(s): CCAMLR Secretariat Title: Measurement of capacity in CCAMLR ...
Meeting Document : WG-FSA-18/15 : Autor(es): CCAMLR Secretariat
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Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat update 2019
Abstract: This paper presents an update of the metrics of capacity and capacity utilisation ... do not indicate an excess of capacity in the fishery. Interpretation of data for 2018 and 2019 ... should be made in the context of changes in the area of operation and the application of fishery ... closures in the exploratory fishery in Subarea 88.1. Author(s): CCAMLR Secretariat Title: Measurement of ...
Meeting Document : WG-FSA-2019/06 Rev. 1 : Autor(es): CCAMLR Secretariat
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Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
and we need to understand the impact on marine ecosystems. A diverse community of killer whales ... killer whales sighted in other parts of the world. Sightings of Type A around the AP have been ... increasing in recent years, including observations of predation on a number of whale and pinniped species ... photographs) collected between austral summers 2005/06 to 2016/17 to describe the movement patterns of these ...
Meeting Document : WG-EMM-17/49 : Autor(es): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman