Résultats de la recherche
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Preliminary results of age determination by otolith mass in mackerel icefish Champsocephalus gunnari Lonnberg 1905 in the Heard Island area (Australia)
Abstract: To determine mackerel icefish Champsocephalus gunnari age, otolith mass was used. The ... material was collected in July0August 1987 during the joint Soviet-Australian expedition on board R/V ... PROFESSOR MESYATSEV to heard Island shelf area. The otoliths were weighted with an electric balance to ... within 0.0001 g. Then the obtained data underwent statistical processing with application of the cluster ...
Meeting Document : WG-FSA-94/08 : Auteur(s): I.B. Russelo (Ukraine)
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A re-analysis of the Kerguelen Shelf and Skiff Bank stocks of Champsocephalus gunnari
Abstract: Catches of Champsocephalus gunnari from the Kerguelen Shelf and Skiff Bank stocks were ... re-calculated from those used by the Working Group on Fish Stock Assessment in 1989 using length ... -frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in 1988 ... for the Age 2 Kerguelen Shelf stock, an order of magnitude lower than that calculated from a biomass ...
Meeting Document : WG-FSA-90/17 : Auteur(s): G. Duhamel (France) and D.J. Agnew (Secretariat)
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Further information in relation to krill fisheries in the D1MPA process
Abstract: The D1MPA planning process has been characterized as inclusive and transparent taking ... into account Members’ varying interests. In 2017 a D1MPA preliminary proposal was introduced to the ... boundaries. This paper provides further information in relation to krill fisheries and the decisions taken in ... support of the D1MPA proposal, also including comments from the D1MPA Expert Group. Author(s): A. Capurro ...
Meeting Document : WS-SM-18/18 : Auteur(s): A. Capurro and M.M. Santos with contributions from the D1MPA Expert Group
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Second progress report of the CEMP Special Fund overwinter penguin tracking project
Abstract: We provide a 2 nd update on the progress of our project “Tracking the overwinter ... habitat use of krill-dependent predators from Subarea 48.1”. The project was initiated with support from ... the CEMP Special Fund in 2015/16. Of 150 tags purchased in 2016, all have been deployed and the data ... collection phase has recently concluded. As of 28 May 2018, the last viable tags had ceased transmitting and ...
Meeting Document : WG-EMM-18/24 : Auteur(s): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire and G. Milinevsky
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Spatial distribution and population structure of juvenile Antarctic toothfish (Dissostichus mawsoni) in the South Shetland Islands (Subarea 48.1)
Abstract: In the present study we provide new insights on the spatial distribution and population ... structure of juvenile D. mawsoni caught during bottom trawl survey on the shelves around the South Shetland ... to 2007. Juveniles were relatively evenly distributed on the shelves around Elephant Island and ... abundant between 100 and 300 m depth. The sampled population was composed of 150 specimens measuring ...
Meeting Document : WG-FSA-18/45 : Auteur(s): M. La Mesa, E. Riginella and C.D. Jones
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Report from the Workshop on Krill-fishery Management for Subareas 48.1 and 48.2
Abstract: The aim of the Workshop (see SC-CAMLR-XXXVII/24) was to explore how management ... strategies for the krill fishery can be integrated and harmonized. Such strategies include, but are not ... limited to, feedback management and the use of research zones including those within the proposed D1MPA ... the Workshop Organising Committee) Title: Report from the Workshop on Krill-fishery Management for ...
Meeting Document : SC-CAMLR-38/BG/18 : Auteur(s): P.N. Trathan, G. Watters, N. Bransome, S. Davie, P.E. Skogrand, R. Werner, A. Kavanagh, C. Johnson and J. Arata (On behalf of the Workshop Organising Committee)
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CCAMLR and seabirds in the Antarctic marine ecosystem
Abstract: This paper outlines the experiences of the 24-nation Commission for the Conservation of ... albatrosses and petrels) during fishing in the Area for which it is responsible. Details of various mitigation ... measures are provided and the effect of such measures is evaluated. Author(s): Secretariat Title: CCAMLR ... and seabirds in the Antarctic marine ecosystem Approval: Approved ...
Meeting Document : CCAMLR-XXIII/BG/23 : Auteur(s): Secretariat
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Management subdivisions within the CCAMLR Area with special reference to Area 58
Abstract: The current subdivision of the CCAMLR Area is examined and some of the problems ... inherent in the system are outlined. A rationale for the further subdivision of Area 58 is developed and a ... on fishery data. Author(s): S. Nicol (Australia) Title: Management subdivisions within the CCAMLR ...
Meeting Document : WG-KRILL-92/22 : Auteur(s): S. Nicol (Australia)
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Distribution of phytoplankton in the mixed layer: implication of krill abundance
Abstract: The vertical trajectory of phytoplankton in the Antarctic ocean is modelled as a random ... walk with a diffusivity derived from a simple Ekman layer model and turbulence theory. The surface ... mixing layer is shallow, but diffusion is large enough to effect the vertical distribution of ... phytoplankton in the upper ocean. Author(s): United States of America Title: Distribution of phytoplankton in ...
Meeting Document : SC-CAMLR-VII/BG/26 : Auteur(s): United States of America
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Genetic analysis of Antarctic toothfish samples from the Southern Ocean to explore potential stock boundaries
restriction enzyme digests of nine sub regions of the mitochondrial genome. Polymorphisms were found in four ... out of seven introns digested with the restriction enzymes, but there was no population ... differentiation among the three sea areas. While direct sequencing of cytochrome b (665 base pair) showed ... virtually no variation, sequences for ~600 bp of the left domain of the control region showed nucleotide ...
Meeting Document : WG-FSA-04/32 : Auteur(s): P.J. Smith, S.M. McVeagh (New Zealand) and P.M. Gaffney (USA)