Résultats de la recherche
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Antarctic krill populations in the outflow region of the north-western Weddell Sea
Abstract: A meso-scale zooplankton and krill net sampling survey was carried out in the north ... March 2013. The aim of the survey was to study the zooplankton composition and krill abundance and ... distribution in the outflow region of the Weddell Sea. Due to severe pack-ice conditions, more than half of the ... survey area was covered by ice during the summer season. Antarctic krill densities were found to be ...
Meeting Document : WG-EMM-13/24 : Auteur(s): V. Siegel (European Union)
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Investigation of potential biases in the assessment of Antarctic toothfish in the Ross Sea fishery using outputs from a spatially explicit operating model
-recapture data, and rely on the assumption that tagged and untagged fish have constant probabilities of ... recapture regardless of the spatial distribution of releases or subsequent fishing effort for recaptures ... . Conceptually this assumption implies either that tagged and untagged fish mix equally in the population, or ... that fishing effort for recaptures is distributed in proportion to the underlying abundance. Neither of ...
Meeting Document : WG-SAM-13/36 : Auteur(s): S. Mormede and A. Dunn (New Zealand)
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Integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery (Division 58.5.2)
eleginoides) at the Heard and the McDonald Islands (Division 58.5.2) with data until the start of August 2013 ... . Compared to the last assessment in 2011, this assessment updated the growth model and compared the effects ... stock assessment estimates and projected catch limits that satisfy the CCAMLR decision rules. Re ... -defining the fishery structure was based on a method by Candy et al. (2013) that suggested a simplification ...
Meeting Document : WG-FSA-13/24 : Auteur(s): P. Ziegler, S. Candy and D. Welsford (Australia)
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2006–2013 fish distribution and biomass in the Kerguelen EEZ (CCAMLR DIVISION 58-5-1) for the bathymetric range 100–1 000 m
Abstract: Three fish biomass surveys have been recently undertaken in the northern part of the ... Kerguelen Plateau (POKER 1, 2006; POKER 2, 2010; POKER 3, 2013) with the chartered trawler FV “Austral ... ” repeating the same random and stratified sampling stations in the bathymetric range 100 – 1000 m. Data on ... the bathymetric and geographical fish distribution are available for 19 bottom-dwelling species (13 ...
Meeting Document : WG-FSA-14/07 : Auteur(s): G. Duhamel, M. Hautecœur and R. Sinegre (France)
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Proposal to continue participation in the second year of the joint CCAMLR research survey to collect spatially stratified longline and bathymetric data in 88.2_A and 88.2_B in 2015/16
Abstract: Toothfish in SSRUs 882.A–B are currently managed as part of the Ross Sea region stock ... , but the stock structure and fish movement patterns are uncertain and more information is required for ... the management across all of the region. Recognising this requirement, the Scientific Committee ... endorsed two years of spatially stratified longline surveys in the northern region of SSRUs 88.2A–B (SC ...
Meeting Document : WG-SAM-15/32 : Auteur(s): Delegation of the United Kingdom
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Conservation at CCAMLR: Understanding Article II of the Convention on the Conservation of Antarctic Marine Living Resources
Abstract: Article II has periodically been the subject of discussion in the Commission. As ... CCAMLR moves through its fourth decade of service as a vital part of the Antarctic Treaty system, the ... delegations of United States and Australia considered it was important to recall the development of the ... taking a close look at Article II of the Convention to see how the term is applied and to consider its ...
Meeting Document : CCAMLR-XXXV/BG/28 : Auteur(s): Delegations of Australia and the USA
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A characterisation of the toothfish fishery and tagging programme in the Amundsen Sea region (SSRUs 88.2C–H) through 2015–16
Abstract: This report provides a characterisation of the toothfish fishery and associated tagging ... programme in the Amundsen Sea Region (SSRUs 88.2C–H) up to and including the 2015/16 fishing year. A ... research plan was implemented in the region beginning in 2014/15 to concentrate fishing in the South (SSRUs ... 88.2C-G) into four smaller research blocks in order to increase the likelihood of recaptures of ...
Meeting Document : WG-FSA-16/45 : Auteur(s): K. Large, S. Parker and S. Hanchet
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Preliminary report of the Japanese RV Kaiyo Maru survey in the Ross Sea and adjacent waters, Antarctica, in 2004/05
Abstract: A survey of the Japanese R/V Kaiyo Maru was carried out to collect data simultaneously ... on ecological interaction of environment – Antarctic krill – whales in the Ross Sea and adjacent ... were investigated to cover hot spots which suggest high concentrated krill and whales such as the Scott ... Seamounts Island, the Balleny Islands, the shelf off the Victoria Land and the almost whole of the Ross Sea ...
Meeting Document : WG-EMM-05/16 : Auteur(s): M. Naganobu, K. Taki and T. Hayashi (Japan)
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A two-fleet ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
Abstract: The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... become available for the years 2004 and 2005. The assessment is also generalised to allow for a second ... obtained show a much greater selectivity for larger toothfish for the pot than for the longline fishery – a ... feature which has important implications for the status of the population. The possible extent of cetacean ...
Meeting Document : WG-FSA-05/58 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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On experimental approach to extend boundaries of exploratory fishery on Antarctic toothfish (D. mawsoni) in the Ross Sea (Subareas 88.1 and 88.2) in the meso- and bathypelagial layers
Abstract: Based on the analysis of data on the searching fishery on Antarctic toothfish (D ... . mawsoni) by the Russian fishing vessels "Yantar" and "Volna" in the seasons of 2002/03 ... -2003/04 it has been obtained that the long-line catchability and size composition of fish depended on ... the fishing depth, bottom orography and sharp change in the depth, etc. In this relation, to determine ...
Meeting Document : SC-CAMLR-XXIII/BG/19 : Auteur(s): Delegation of Russia