Resultados de la búsqueda
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
Abstract: Neck collars of man-made marine debris were seen on 208 Antarctic fur seals (and ... removed from 170) during the 142 days of the 1988-89 pup-rearing season at Bird Island, South Georgia ... . This represents at least 0.1% of the total Bird Island population and a minimum of 0.4% of animals in ... ) formed 59% of collars, nylon string (15%), fishing net (13%) and six other materials comprising the rest ...
Meeting Document : CCAMLR-VIII/BG/05 : Autor(es): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
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Patterns and processes in the distribution and dynamics of Antarctic krill
Abstract: A general framework is presented to develop, test and integrate component models of the ... distribution and dynamics of Antarctic krill population at various spatial and temporal scales. We suggest that ... models of increasing complexity be developed iteratively for variability and patchiness of krill ... abundance. Incremental models should then be compared to statistical descriptions of the observed ...
Meeting Document : SC-CAMLR-VII/BG/20 : Autor(es): United States of America
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A sensitivity analysis of a simple krill individual-based model designed to investigate length-based recruitment indices
Abstract: As part of the CCAMLR Scheme of International Scientific Observation, observers on ... -board Krill (Euphausia superba) fishing vessels measure the length of individual Krill sampled from ... commercial catches. These extremely valuable data may be used to monitor the state of harvested Krill ... to the interpretation of any observed trend. To illustrate these interactions a simple mechanistic ...
Meeting Document : WG-EMM-13/23 : Autor(es): S. Thanassekos and K. Reid (Secretariat)
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
Abstract: Surveys of all known breeding sites of wandering, black-browed and grey-headed ... 1,553 pairs of wandering albatrosses, 75,500 pairs of black-browed albatrosses and 47,800 pairs of grey ... predominantly yacht-based survey of black-browed and grey-headed albatrosses over the whole of South Georgia ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ...
Meeting Document : WG-FSA-04/71 : Autor(es): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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Diets of sympatrically breeding Adélie, gentoo and chinstrap penguins from Admiralty Bay, South Shetland Islands, Antarctica, 1981 to 2000
Abstract: Given the importance and interdependence of diet studies to monitoring work, we ... compared data on the stomach contents and food load masses among three species of Pygoscelis penguins ... dependent on Antarctic krill (Euphausia superba), which accounted for over 93% of each species’ diet by ... frequency of occurrence and mass. Gentoo penguins ate significantly more fish than either congener ...
Meeting Document : WG-EMM-03/29 : Autor(es): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)
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Characteristics of krill aggregations in 48.4 subdivision during January–February 2000
presence of non-aggregated and scattered form, swarms, when surveying (January 17-February 1, 2001).. There ... have been revealed differences between spatial distribution patterns of krill aggregations of different ... characteristics of some 2400 krill swarms detected and sized acoustically in the study area have been described ... been made an analysis of krill biomass horizontal and vertical distributions in the study area in ...
Meeting Document : WG-EMM-01/42 : Autor(es): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)
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Population assessment of Patagonian toothfish in Subarea 48.4 – 2011 update
Abstract: In this paper we update the assessment of D. eleginoides in the northern half of ... catch at age model generates a yield of 52 tonnes based on CCAMLR decision rules. In 2006 the northern ... subdivision of 48.4 was set north of Saunders Island after consideration of oceanographic and bathymetric data ... , and for the purpose of the experimental work leading to a stock assessment. Data collected in the ...
Meeting Document : WG-FSA-11/38 : Autor(es): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
Abstract: We have compiled the records of Antarctic fur seals (Arctocephalus gazella) entangled ... results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... debris like net fragments (ghost nets) and nylon ropes. We have managed to liberate 35% of the total ... entangled animals (four females, one juvenile male, and two pups). The total percentage of entangled animals ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Autor(es): Delegation of Chile
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Diets of Antarctic toothfish estimated from fatty acids and stable isotopes
examine feeding ecology of Antarctic toothfish and food webs of Antarctic marine ecosystem. Specimens of ... locations of he Antarctic Waters. We investigated ontogenetic and spatial variability in resource ... utilization of Antarctic toothfish and distribution patterns of FA profiles in various organisms because of ... the particular importance of accumulation of lipid deposits in their tissue. Toothfish trophic niche ...
Meeting Document : WG-FSA-17/12 : Autor(es): C.-K. Kang, S.-G. Choi, J. Lee, J. Lee and D. An
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Integrating Climate and Ecosystem Dynamics in the Southern Ocean (ICED) programme: Report of the ICED–CCAMLR Projections Workshop, 5 to 7 April 2018
Abstract: Climate change will alter the structure and functioning of Southern Ocean ecosystems ... , affect the ecosystem services they provide, and therefore require development of conservation and ... Southern Ocean (ICED) programme and CCAMLR brought together a range of ecologists, physical and ecological ... modellers and fisheries scientists to consider the potential impacts of climate change on Antarctic krill in ...
Meeting Document : SC-CAMLR-XXXVII/BG/16 : Autor(es): E. Murphy, N. Johnston, S. Corney and K. Reid