Résultats de la recherche
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2018 – Reflection on the recommendations by WG-EMM-17 and SC-CAMLR-XXXVI
Abstract: The CAMLR Scientific Committee in 2017 reviewed the scientific background document SC ... -CAMLR- XXXVI/BG/28. Germany was asked to carry out further work, in particular as regards the issues and ... questions raised at WG-EMM-17 and SC-CAMLR-XXXVI with respect to the WSMPA proposal (SC-CAMLR-XXXVI, Annex 6 ... , §§ 5.1-5.14). Chapter 1 reflects on the recommendations concerning the suitability of some data layers ...
Meeting Document : WS-SM-18/13 : Auteur(s): K. Teschke, H. Pehlke and T. Brey
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Convener’s summary on intersessional activities of the Subgroup for the Implementation of the CCAMLR-2008-IPY-Survey
Abstract: At its last meeting in October 2004 the Scientific Committee agreed that a synoptic ... acoustic survey in the South Atlantic region would be the most appropriate activity for CCAMLR in the IPY ... 2008. It was agreed that a synoptic acoustic/net sampling survey in the South Atlantic region should ... observations on marine zooplankton, marine mammals and birds. The Scientific Committee has established an ...
Meeting Document : SC-CAMLR-XXIV/BG/02 Rev. 1 : Auteur(s): V. Siegel (Convener, Steering Group ‘CCAMLR-2008-IPY-Survey’)
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Progress on the application of an age-structured production model fitted to commercial catch-rate and catch-at-length data to assess the toothfish (Dissostichus eleginoides) resource in the Prince Edward Island vicinity
Abstract: The Age-Structured Production Model (ASPM) presented to previous meetings is refined to ... allow the estimation of a selectivity-at-age function that decreases at larger ages. This is, in ... particular, to accommodate the view of the August 2003 meeting of the Subgroup on assessment methods that 0.2 ... yr-1 is likely the largest value of natural mortality M that is plausible for toothfish. Catch, catch ...
Meeting Document : WG-FSA-03/97 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)
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Effects of the Antarctic Circumpolar Current on fishing for squid (Illex Argentinus) in the Atlantic sector of the Southern Ocean
Abstract: The paper introduces several approaches to assessment of hydrological situation in the ... Atlantic sector of the Southern Ocean (the South-West Atlantic). The analysis of the SST maps suggests that ... hydrological factors depend on the intensity of two currents, the Antarctic Circumpolar Current and the ... Falkland current The paper shows correlation between a certain hydrological situation and fishing for squid ...
Meeting Document : WG-EMM-99/15 : Auteur(s): G.P. Vanyushin and T.B. Barkanova (Russia)
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A proposed process for the management of model updates and software versions for stock assessment used within CCAMLR with the example of the CASAL software
Abstract: We propose a process by which to select the version of software generally used for ... stock assessments in CCAMLR, with the specific example of the CASAL software used for stock assessment ... . The latest published version of any stock assessment software approved by CCAMLR should be used by ... default, unless the latest development version is necessary, in which case it is the responsibility of the ...
Meeting Document : WG-SAM-14/32 : Auteur(s): S. Mormede and A. Dunn (New Zealand)
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Analysis of longline fleet operation on the Patagonian toothfish (Dissostichus eleginoides) in the subarea of the South Georgia Island (48.3) in 1989–2003
Abstract: The main characteristics of Patagonian toothfish (Dissostichus eleginoides) catch ... dynamics off the South Georgia Island and Shag Rocks (sub-area 48.3) for the 1989-2003 period are given ... . Taken the intensity of fleet operation as an example in the sub-area, it was confirmed a decrease in ... catches both for 1000 hooks and vessel/day. The given objective long-term data evidenced a substantial ...
Meeting Document : WG-FSA-03/98 : Auteur(s): N.V. Kokorin and A.F. Petrov (Russia)
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Development of the krill stock in the elephant island region during the 1996/97 season
Abstract: During December 1996 the Elephant Island standard grid was surveyed for krill and salps ... . Krill and salps were present at almost all of the stations, other epipelagic zooplankton species were ... was much higher than in previous years. The krill stock was dominated by length classes around 35 mm ... , representing age group 2+ and the year-class 1994/95 (proportional recruitment R2 = 0.85). The year-class 1995 ...
Meeting Document : WG-EMM-97/16 : Auteur(s): Siegel, V.
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Variation in the diet of the blue-eyed shag Phalacrocorax atriceps throughout the breeding season at Half-Moon Island, South Shetland Islands
Abstract: One hundred and seventy three regurgitated casts of the blue-eyed shag or imperial ... weekly sampling throughout the breeding season from December 1993 to February 1994. Demersal-benthic fish ... were the main prey (91% in number) followed by mollusks and polychaetes. Six fish species were ... , Gobionotothen gibberifrons and Pagothenia bernacchii. Notothenia coriiceps was the most frequent (F%=73) and ...
Meeting Document : WG-EMM-95/78 : Auteur(s): Barrera-Oro, E., Casaux, R.
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Censuses in the northernmost colony of Emperor penguin (Aptenodytes forsteri) in the tip of the Antarctic Peninsula at Snow Hill Island, Weddell Sea, Antarctica
Abstract: Breeding colonies of the emperor penguin Aptenodytes forsteri are distributed ... throughout the Antarctic seasonal pack ice zone. One of the last colonies of emperors penguins discovered is ... situated on the south coast of Snow Hill Island, constituting the northernmost colony known in Antarctica ... over the colony during the 2013 breeding season. Likewise, we explored the colony by land, making an ...
Meeting Document : WG-EMM-14/56 : Auteur(s): M. Libertelli and N. Coria (Argentina)
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What’s the catch? Profiling the risks and costs associated with marine protected areas and displaced fishing in the Scotia Sea
Abstract: A principal concern with implementing marine protected areas (MPAs) is the displacement ... fisheries and the ecosystem. Understanding such outcomes is critical in the Southern Ocean, where MPAs are ... evaluated two MPA scenarios and associated displacements of the Antarctic krill fishery in the Scotia Sea by ... quantifying their potential to affect risks of depleting krill-dependent predators and costs to the fishery ...
Meeting Document : WS-SM-18/P03 : Auteur(s): E.S. Klein and G.M. Watters