Résultats de la recherche
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Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter
Abstract: We elucidated characteristics of interannual variability in density index, recruitment ... index and diurnal vertical distribution for Antarctic krill in krill fishing grounds (hotspots) at South ... predictable fishing grounds occurred in the restricted areas throughout the study period. Main results are as ... follows: Median CPUEs did not show particularly low values in winter even when krill abundance and ...
Meeting Document : WG-EMM-18/34 : Auteur(s): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda
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Plastic ingestion by petrels breeding in Antarctica
Abstract: Plastic particles were found to be common pollutants in stomachs of Wilson’s Storm ... Petrels and Cape Petrels breeding on the Antarctic continent. Highest incidence of plastics was found in ... chicks of Wilson’s Storm Petrels that had died before fledging. Few or no plastics were found in Snow ... the Antarctic, and that relatively few plastics are available in Antarctic waters. Possible hazards of ...
Meeting Document : CCAMLR-VIII/BG/09 : Auteur(s): J.A. van Franeker (Netherlands) and P.J. Bell (Australia)
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Migrations of Antarctic fish Pseudochaenichthys georgianus Norman, 1939 in the Scotia Sea
geographical and depth distribution of Pseudochaenichthys georgianus in the area of Scotia Arc Islands and on ... shelf of South Georgia Island. In the Antarctic colder waters in the Palmer Archipelago there were ... reason to follow after krill driven to the East to deep open Scotia Sea. In vast Antarctic Zone, enlarged ... not in sampled area, have to be assumed to be near or under ice feeding on juvenile krill and fish ...
Meeting Document : WG-FSA-12/68 Rev. 1 : Auteur(s): R. Traczyk (Poland)
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Further development of pairwise tag detection performance index and its application to the stock assessment of toothfish in the Ross Sea fishery
Abstract: Tag release and recapture data are used in integrated age-structured stock assessments ... of Antarctic toothfish (Dissostichus mawsoni) in Subareas 88.1 and 88.2 to determine abundance and ... ) could lead to an over-estimate of the stock biomass. In this paper we develop further an index of vessel ... subset of vessels for which there is confidence in their tag-recapture data. Finally, we apply these ...
Meeting Document : WG-SAM-13/34 : Auteur(s): S. Mormede (New Zealand)
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Catches of target species in the Convention Area
Abstract: Summary of catches from directed fishing on toothfish, icefish and krill in the ... Convention Area in 2014/15 and 2015/16, including catches taken during scientific surveys conducted in ... accordance with Conservation Measure 24-01. Catches reported in 2014/15 were published in the CCAMLR ... in 2015/16 are also summarised. Author(s): CCAMLR Secretariat Title: Catches of target species in ...
Meeting Document : SC-CAMLR-XXXV/BG/01 : Auteur(s): CCAMLR Secretariat
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The Norwegian SWARM project: from swarming behaviour to trophic interactions: modelling dynamics of Antarctic krill in ecosystem hotspots using behaviour-based models
Abstract: Norway is in the process of extending its monitoring efforts in the area around South ... Orkneys by deploying acoustic moorings in a commercially exploited area. Data gathered from the moorings ... will be used to parametrise models, in order to gain better understanding of the interaction between ... ocean physics and behaviour in driving krill biomass variation in the area. Author(s): T.A. Klevjer, G ...
Meeting Document : WG-EMM-17/26 : Auteur(s): T.A. Klevjer, G. Rieucau, A.H.H. Renner, G. Skaret and O.R. Godø
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STRUCTURE OF THE WATER MASSES AND KRILL DISTRIBUTION IN THE CENTRAL AND EASTERN PARTS OF THE ATLANTIC ANTARCTIC AREA
Abstract: The data of 18 expeditions fulfilled by AtlantNIRO during 1970-2000 in the central and ... with reference to the structure and dynamics of the water masses in the area of the Southern Sandwich ... coastal zone of the Antarctic. It was demonstrated that in these areas in the frontal zone of the Weddell ... circulation and in the area of the Antarctic nearshore current the oceanographic conditions appeared favorable ...
Meeting Document : WG-EMM-11/24 : Auteur(s): V.N. Shnar and S.M. Kasatkina (Russia)
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New corrections factors for the quantification of fish represented in pellets of the blue-eyed shag Phalacrocorax atriceps
necessary for the quantification of fish represented in pellets. These factors were obtained for Notothenia ... , Notolepis coatsi and Electrona antarctica were represented in pellets but not found in the stomach contents ... . Fish were the main prey and N. coriiceps and H. antarcticus were the dominant species both in mass and ... number. Observations on behaviour showed that the daily foraging trips per bird increased in number but ...
Meeting Document : WG-EMM-95/83 : Auteur(s): Silva, P., Casaux, R., Favero, M., Barrera-Oro, E.
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Declining trend in the abundance of fjord fish of the species Notothenia rossii marmorata and Notothenia gibberifrons observed at two localities of South Shetland Islands
Abstract: A declining trend observed in the abundance of fjord fish of the species Notothenia ... nets at Potter Cove, King George/25 de Mayo I., from 1983 to 1990 and in waters around Half-Moon I ... ., Moon Bay, in 1989. The analysis was based on the proportion of catches of the mentioned species in ... relation to Notothenia neglecta, a species with similar ecological habits in the fjords. Comparison with ...
Meeting Document : WG-FSA-90/14 : Auteur(s): E. Barrera-Oro and E. Marschoff (Argentina)
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The Antarctic toothfish Dissostichus mawsoni (Nototeniidae) nutrition in the Ross Sea during the fishing season 2011/12
Abstract: During fishing trip of F/V «Jung Woo 3» (Republic of Korea) in the Ross Sea over 29 ... species were found in the stomachs of the Antarctic toothfish. The main forage organisms for the toothfish ... dominant in the toothfish nutrition at SSRU “J” at the shelf in the vicinity of the Ross Ice Shelf. In that ... area the shrimp Notocrangon antarcticus played an important role in the toothfish nutrition ...
Meeting Document : WG-FSA-12/06 : Auteur(s): Yu.V. Korzun and N.A. Misar (Ukraine)