Resultados de la búsqueda
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Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf
Abstract: Population structure and dynamics of the abundance of Notothenia rossii rossii on the ... Kerguelen Island shelf from the beginning of the fishery to 1984 has been examined.Total and commercial ... calculation by mathematical modelling.Comparative estimates of the abundance and recruitment-remainder ratio ... for the period of 1970-1984 have been presented, the average age of recruitment has been stated ...
Meeting Document : WG-FSA-90/41 : Autor(es): P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR)
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Developments towards an investigation of potential bias from the analysis of tag–release and recapture data in Ross Sea Antarctic toothfish abundance estimates
the current tagrecapture programme for Antarctic toothfish in the Ross Sea. We present an initial ... approach that uses the current data on catch (C2 data), tag-recovery effort and tag-release data from Dunn ... et al. (2005c), but ignores movements of tagged and untagged fish. The results suggest that as the ... spatial pattern of tag releases and recovery effort has changed over the years that the tagging programme ...
Meeting Document : WG-FSA-SAM-06/10 : Autor(es): A. Dunn (New Zealand)
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2018 International Conference on Assessing Status and Trends of Habitats, Key Species and Ecosystems in the Southern Ocean, Hobart, Tasmania, Australia
Abstract: The program Integrating Climate and Ecosystem Dynamics, which is a partner program of ... ecosystems in the Southern Ocean in April 2018. This background paper is an invitation to Members of the SC ... ) Assessments of status and trends in habitats, species and ecosystems, and the causes of change (attribution ... systems to estimate dynamics and change. These themes aim to facilitate contributions of the Antarctic ...
Meeting Document : SC-CAMLR-XXXIV/BG/22 : Autor(es): Delegation of Australia
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A multivariate approach to examining patterns in research fishing activities using the SSRU 88.2A–B North survey as an example
Abstract: The WG-SAM in 2016 “agreed the importance of identifying a set of diagnostics and clear ... criteria to assess the likelihood that a vessel is operating as would be expected in normal research ... achieve such a goal (WG-SAM 2016, paragraph 4.19). In this paper, we further develop the analysis of Large ... et al. (2016), using fishing activities in the northern Ross Sea region as an example. We investigate ...
Meeting Document : WG-FSA-16/46 : Autor(es): S. Mormede, A. Dunn, S.J. Parker, T. Earl, C. Darby, M. Söffker and O.R. Godø
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An outline of narrowband echosounder survey methods to estimate biomass of Antarctic krill in CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
will be conducted in CCAMLR Division 58.4.1 during 2018/19. The biomass estimation will be conducted ... according to the up-to-date CCAMLR standard protocol. The first standardized survey was conducted by CCAMLR ... in 2000 as the CCAMLR-2000 survey. Quantitative echosounders has evolved since then and a current ... broadband frequency modulation wave (FM), CW will be used for biomass estimation to follow the CCAMLR ...
Meeting Document : SG-ASAM-18/02 : Autor(es): K. Abe, K. Amakasu, R. Matsukura, T. Mukai and H. Murase
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An introduction to the International Association of Antarctica Tour Operators (IAATO)
Abstract: The International Association of Antarctica Tour Operators (IAATO) has been granted ... observer status at the thirty-seventh meetings of the Commission and Scientific Committee. IAATO is a ... membership organization founded in 1991 to advocate and promote the practice of safe, environmentally ... responsible private-sector Antarctic travel. It now comprises over 100 member companies, representing the vast ...
Meeting Document : CCAMLR-XXXVII/BG/27 : Autor(es): Submitted by IAATO
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Penguins, fur seals, and fishing: prey requirements and potential competition in the South Shetland Islands, Antarctica
may have a significant effect on krill abundance, we estimated the energy and prey requirements of ... and female Antarctic fur seals (Arctocephalus gazella) breeding on the South Shetland Islands ... , Antarctica and compared these estimates with catch statistics from the Antarctic krill fishery. Published ... offspring. Due to their large population size, chinstrap penguins were the most significant krill predators ...
Meeting Document : WG-EMM-99/57 : Autor(es): D.A. Croll and B.R. Tershy (USA)
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Large scale circulation in the South Atlantic: estimates from giant iceberg drift rates
Abstract: The paper reports work currently in progress and presents estimates for ocean ... circulation in the Scotia Sea. The estimates are derived from the drift rates of giant icebergs calved in the ... Weddell Sea since 1974. Comparison with other estimates is limited by the lack of studies reported in the ... (United Kingdom) Title: Large scale circulation in the South Atlantic: estimates from giant iceberg drift ...
Meeting Document : WS-Flux-94/06 : Autor(es): P.N. Trathan and C. Symon (United Kingdom)
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A methodology for estimating total finfish by-catch of the Area 48 krill fishery
Abstract: The report presents a methodology that can be used to estimate the total finfish ... bycatch of the Area 48 krill fishery and quantify the impact of bycatch on the finfish stocks using data ... that is currently available, applied to data collected by Scientific Observers on the FV Saga Sea ... and Myctophidae species using delta-lognormal GLMs presented in Martin et al. (2012). The bycatch ...
Meeting Document : WG-EMM-12/29 : Autor(es): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Diet and trophic niche of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
Abstract: The diet of Antarctic silverfish (Pleuragramma antarcticum) was evaluated by examining ... stomach contents of specimens collected in the Ross Sea (71°–77°S, 165°E–180°) in January–March 2008 ... composition of carbon and nitrogen. According to index of relative importance (IRI), the most important prey ... by silverfish occurred mainly in the extreme south-west of the region and near the continental slope ...
Meeting Document : WG-EMM-12/54 : Autor(es): M.H. Pinkerton, J. Forman, S.J. Bury, J. Brown, P. Horn and R.L. O’Driscoll (New Zealand)