Resultados de la búsqueda
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Design of the Italian acoustic survey in the Ross Sea
Abstract: The paper submits the design of the acoustic survey that should be carried out in the ... next Italian expedition to the Ross Sea (2002), for eventual changes, improvements and suggestions ... . Author(s): M. Azzali and A. Sala (Italy) Title: Design of the Italian acoustic survey in the Ross Sea ...
Meeting Document : WG-EMM-01/64 : Autor(es): M. Azzali and A. Sala (Italy)
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DEMOGRAPHIC PATTERNS OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) EXPLAIN THE SPATIAL SEGREGATION OF BALEEN WHALES (MYSTICETI) AROUND THE SOUTH SHETLAND ISLANDS, ANTARCTICA
January surveys 2003 to 2007, we examine the spatial relationships between baleen whale distributions and ... Antarctic krill (Euphausia superba) abundance and demography near the South Shetland Islands (Antarctic ... sampled over five years resulting in the most comprehensive linked whale-krill study in the SW Atlantic ... model the overlap between three species of baleen whales and their krill prey. Whales exhibited ...
Meeting Document : WG-EMM-09/33 : Autor(es): J.A. Santora, C.S. Reiss, V.J. Loeb and R.R. Veit (USA)
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The importance of Antarctic Toothfish as prey of Weddell Seals in the Ross Sea: a Review
Abstract: Uncertainty exists over the importance of Antarctic toothfish (Dissostichus mawsoni) as ... prey of top predators in the Ross Sea. We herein assess relative weight given to direct, observational ... that toothfish are important to Weddell seals (Leptonychotes weddellii). The seals eat only the flesh ... day. Based on these and other data, the non-breeding portion of the McMurdo Sound seal population ...
Meeting Document : WG-EMM-09/P02 : Autor(es): D.G. Ainley and D.B. Siniff
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Cross-sectional structure and validation of the timing of annulus formation in otoliths of the Antarctic fish Notothenia coriiceps Richardson (Nototheniidae)
Abstract: To validate the timing of annuli in otoliths of immature Notothenia coriiceps ... (SEM) techniques were used to examine the structure of sectioned otoliths. Six growth regions were ... identified in the otolith sections and micro-increments were also evident. The timing of growth and annual ... techniques were shown to correspond, supporting the hypothesis that annuli visible by using light microscopy ...
Meeting Document : WG-FSA-93/6 Rev. 1 : Autor(es): J.R. Ashford and M.G. White (United Kingdom)
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On assessing the size of the humped rockcod stock (Notothenia gibberifrons) in Subarea 48.3
Abstract: An adaptive approach was used to assess the Notothenia gibberifrons stock in Area 48.3 ... . It is demonstrated that when tuning the VPA using abundance indices from trawl surveys it is ... imperative to estimate the catchability coefficient. This parameter was equal to 0.326 to 0.635. An adaptive ... approach in this case involved using a target function in the form of the sum of square deviations in ...
Meeting Document : WG-FSA-91/26 : Autor(es): P.S. Gasiukov (USSR)
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Evaluation of VME taxa classification by scientific observers from New Zealand vessels in the Ross Sea Antarctic toothfish longline fishery during the 2009/10 season
Abstract: Conservation Measure 22-07 (2008) requires vessels fishing in the Ross Sea (and most ... Observers from four vessels in the Ross Sea Antarctic toothfish longline fishery during the 2009-10 season ... made to the classification guide, along with specific training, benefitted the accuracy of data ... collection. Comparison of the observer’s classification versus the taxonomist’s classification showed that ...
Meeting Document : TASO-10/10 : Autor(es): D.M. Tracey, M.E. Carter and S.J. Parker (New Zealand)
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Why does it necessary to consider krill flux for developing the feedback management strategy for krill fishery in the Area 48?
Abstract: The authors discussed the necessity to investigate krill flux for estimating the local ... harvest rates-indicators that could be used to reveal the potential risk of the fishery development ... . Estimates of krill flux factors in Subarea 48.3 based on the Soviet/Russian scientific observations from ... it necessary to consider krill flux for developing the feedback management strategy for krill fishery ...
Meeting Document : WG-EMM-15/24 : Autor(es): S. Kasatkina and V. Shnar (Russia)
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Continuation in the 2015/16 season of the research plan initiated in 2012/13 for stocks of Dissostichus spp. in Divisions 58.4.1 and 58.4.2
Abstract: In the 2012/13 fishing season Spain began implementing a multi-annual Research Plan for ... : depletion and tagging. In 2014/15 the vessel was unable to conduct the proposed research experience due to ... problems with a blade of the propeller, During the season 2015/16 is intended to make the same proposed ... research with some minor changes, always subject to the ice conditions, fulfilling Spain's commitment ...
Meeting Document : WG-SAM-15/02 : Autor(es): Delegation of Spain
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Diagnostic plots of stock assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region for the years 1997–98 to 2014–15
the Ross Sea as recommended by SAM-2015 (2015). The stock assessment rationale and models as well as ... their main diagnostics are described in Mormede et al. (2015). The CASAL files for models R1 and R2 were ... provided to the CCAMLR Secretariat as a zip file. In this paper we present the results for first model R1 ... and then model R2. The diagnostic plots cover input data, MPD and MCMC outputs. Key tables are given ...
Meeting Document : WG-FSA-15/39 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Revised progress report for the fourth year of the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa
Statistical Subarea 48.6 by Japan and South Africa during the 2012/13 fishing season. Two vessels participated ... in the research project in each of the three fishing seasons and the progress achieved during the ... first 3.5 years is reported. The emphasis of the progress report is on block 486_2, since more tag ... Title: Revised progress report for the fourth year of the research fishery for Dissostichus spp. in ...
Meeting Document : WG-FSA-16/56 : Autor(es): S. Somhlaba, R. Leslie, K. Taki, T. Ichii and T. Namba