Résultats de la recherche
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The case for including the Ross Sea continental shelf and slope in a Southern Ocean network of marine protected areas
Abstract: Both the Convention for the Conservation of Marine Living Resources (CCAMLR) and the ... Environmental Protocol to the Antarctic Treaty provide for the establishment of marine protected areas (MPAs ... ) for purposes of scientific study and to conserve unique features and components of the Antarctic ... marine ecosystem. This paper summarizes the case for including the Ross Sea within CCAMLR’s network of ...
Meeting Document : CCAMLR-XXIX/BG/26 : Auteur(s): ASOC Observer
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Age validation of juvenile Notothenia rossii at Potter Cove, South Shetland Islands, using mark-recapture data
Abstract: Among all validation methods of age determination in fish, release of known age and ... principle of annual deposition of an annulus in scales and otoliths. Of 132 juvenile specimens (TL = 22.1 ... after periods of 1–13 months. In scales of five specimens recovered after 10–13 months, one extra ... annulus was laid down, exhibiting an additional winter zone of closely spaced sclerites. Consistently, the ...
Meeting Document : WG-FSA-13/P01 : Auteur(s): E. Moreira, E. Barrera-Oro and M. La Mesa
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Cephalopod diet of the southern elephant seal (Mirounga leonina) at King George Island, South Shetland Islands
Abstract: In the austral summer of 1995/96, 25 southern elephant seals, Mirounga leonina, were ... present in 72% of the individuals sampled (n=18). Seven species of squid and 3 of octopus were identified ... . Overall, the squid species Psychroteuthis glacialis was by far the most important prey in terms of numbers ... (77%), biomass (80.8%) and frequency of occurrence (94.4%). Next in importance in terms of mass in the ...
Meeting Document : WG-EMM-99/13 : Auteur(s): G.A. Daneri, A.R. Carlini (Argentina) and P.G.K. Rodhouse (United Kingdom)
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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 : Auteur(s): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
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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 : Auteur(s): S. Thanassekos and K. Reid (Secretariat)
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Non-native Species in the Antarctic: Report of a Workshop
south of 60° South, including, for example, male and female specimens of the North Atlantic Spider crab ... the risks of new species being introduced and becoming established are increasing. To assess these ... and Antarctica, in April 2006. The outcomes to the workshop were presented in a series of papers to ... the ninth meeting of the Committee for Environmental Protection (CEP). CCAMLR’s Article II requires ...
Meeting Document : SC-CAMLR-XXV/BG/21 : Auteur(s): Delegation of New Zealand
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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 : Auteur(s): 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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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 2000 winter and the 2000/01 breeding season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... reported here. The number of entanglements showed an increase from recent years, with 20 entanglements ... entanglements over the 2000 winter than in 1999; some of which can be explained by interannual variation in the ... injuries accounted for 35% of entanglements over winter and 23% during the summer. As in previous years ...
Meeting Document : SC-CAMLR-XX/BG/03 : Auteur(s): Delegation of the United Kingdom
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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 : Auteur(s): 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 : Auteur(s): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)