Search results
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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
to determine C and N stable isotope composition. Values of?15N and?13C suggested that a minimum of ... Atlantic, and sperm whales from the Gulf of Mexico. There was high variance in?15N and?13C values for each ... of the species sampled, on the order of 3-4 ‰ for?15N (which equates to one trophic level) and 4 ... ‰ for?13C (suggesting multiple primary sources of organic matter). For each species where sufficient ...
Meeting Document : WG-EMM-07/19 : Author(s): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys
Abstract: Stocks of finfish around the South Orkney Islands (Subarea 48.2) suffered substantial ... trawl surveys of finfish biomass within the 500 m isobath of the South Orkney Islands have been ... conducted by the Federal Republic of Germany in 1985, Spain in 1991, and the United States in 1999 ... . Estimates of total stock biomass were computed for eight species that comprised 98% of survey nominal catch ...
Meeting Document : WG-FSA-99/32 : Author(s): C.D. Jones (USA), K.-H. Kock (Germany) and E. Balguerías (Spain)
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Population assessment of Patagonian toothfish in the north of Subarea 48.4 – 2010 update
Abstract: The target tagging rate of 5 fish per tonne was exceeded by both vessels, with 232 D ... . eleginoides tag recaptures in 2009/10, a total of 72 in all seasons; The length-frequency of 2009/10 captures ... is consistent with the theory that the bulk of the biomass is dominated by a small number of cohorts ... currently assumed for the 48.3 population CASAL estimates of D. eleginoides population size in the North of ...
Meeting Document : WG-FSA-10/39 : Author(s): J. Roberts and D. Agnew (UK)
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Feeding habits and prey consumption of Antarctic minke whale Balaenoptera bonaerensis in the Indo–Pacific region of the Southern Ocean
species in the Southern Ocean. Quantitative information on prey consumption of whales is useful to ... understand their feeding ecology and role in the Antarctic marine ecosystem. The purposes of this study were ... 1) to investigate the feeding habits of Antarctic minke whales based on information on prey species ... in stomach contents, and 2) to estimate the amount of prey consumed by whales, accounting for some ...
Meeting Document : WG-EMM-17/14 : Author(s): T. Tamura
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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 : Author(s): Delegations of Australia and the USA
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
Abstract: The work of the Scientific Committee is expanding with a duplication of some functions ... insufficient time at present in the existing working groups, such as consideration of marine protected areas in ... a CCAMLR context. It is proposed that the working groups of the Scientific Committee be revised to ... streamline the work and to help reduce the number of groups needing to be attended by our experts. The ...
Meeting Document : WG-EMM-05/35 : Author(s): A.J. Constable (Australia)
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Reports on abundance and biological information of toothfish in Division 58.4.3b by Shinsei Maru No.3 in the 2010/11 and proposal of the consecutive survey in the 2011/12
order to collect information for the stock status and biology of toothfish in the southeast sector (24 ... allocated hauls) of Division 58.4.3b (BANZARE Bank), using a commercial bottom longline vessel Shinsei Maru ... released alive) of Dissostichus spp. and other bycatch species was 12.0 tonnes in the SE sector, where the ... catch limit of 15 tonnes was set. Dissostichus spp. made up 90.3 % in terms of weight of the whole fish ...
Meeting Document : WG-SAM-11/05 : Author(s): K. Taki, T. Iwami and M. Kiyota (Japan)
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Breeding biology of Adélie penguin (Pygoscelis adeliae) at Edmonson Point CEMP site (Ross Sea, Antarctica): report of the first five years
the fifth year. The study site was located in the Adélie penguin (Pygoscelis adeliae) colony of ... Edmonson Point (74°20'56.7" S, 165°08'10.03" E). The aim of this research was to obtain ... data to contribute to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... ) Ecosystem Monitoring Program and data on the feeding ecology of the Adélie penguin. The rationale for the ...
Meeting Document : WG-EMM-99/60 : Author(s): S. Olmastroni, S. Corsolini, F. Pezzo, S. Focardi (Italy) and K. Kerry (Australia)
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A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity
Abstract: Dual frequency (38 and 120 kHz) acoustic surveys of shelf-break regions in the vicinity ... of Willis Islands, South Georgia and Coronation Island, South Orkneys, both in the Atlantic sector of ... zooplankton (smaller than krill). To counter the absence of krill length-frequency data from Coronation Island ... distribution in both regions was extremely patchy, resulting in a highly skewed frequency distribution of ...
Meeting Document : WG-EMM-95/75 : Author(s): Watkins, J.L., Brierley, A.S.
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Revised proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016 and 2017
estimating the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in ... SSRUs 88.1J and 88.1L so as to provide a time series of recruitment of toothfish. This is a continuation ... of the time series of CCAMLR-sponsored research surveys of these strata carried out from 2012–2015 ... . Following the recommendations of WG-FSA and WG-EMM, an additional secondary survey objective has been ...
Meeting Document : WG-FSA-15/34 : Author(s): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)