Resultados de la búsqueda
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Southern Ocean Network of Acoustics (SONA)
Abstract: Southern ocean processes are intimately linked to some of the most pressing challenges ... faced by society today: climate change, ocean acidification and the sustainable management of marine ... resources. To address these challenges we need to improve our understanding of the natural causes and ... through international collaboration, will enable us to measure the baseline and future trends in the ...
Meeting Document : WG-EMM-13/17 Rev. 1 : Autor(es): S. Fielding (United Kingdom), E. Josse (France), R. Kloser (Australia), R. O’Driscoll (New Zealand), C. Reiss (USA) and G. Skaret (Norway)
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Using vessel acoustics to detect diving patterns of krill foraging predators automatically: Development of a novel method for quantifying impact of krill fishing on seals and penguins
Abstract: The aim of this work was to assess the possibilities of automatically generating a ... of diving predators in the data is feasible. A relatively low detection probability of our algorithms ... compared to the manual detections, suggest that there is significant room for improvement. Given the ... caveats of an imperfect methodology, the results document the possibilities to automatically extract, with ...
Meeting Document : WG-EMM-15/25 : Autor(es): T.A. Klevjer, O.R. Godø and B. Krafft (Norway)
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Reflection Paper on a Proposal for a CCAMLR Weddell Sea Marine Protected Area (WSMPA)
Members on a proposal for the establishment of a marine protected area in the Weddell Sea (Weddell Sea ... Marine Protected Area, WSMPA). Intersessional discussions have revealed the need for further reflection ... submitted to the CCAMLR's Commission and Scientific Committee for decision. To his end, the aim of the ... current paper is to obtain advice from CCAMLR Members on some relevant matters highlighted in the paper ...
Meeting Document : CCAMLR-XXXIV/BG/37 : Autor(es): Delegation of the European Union and its Member States
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Domain 1 Marine Protected Area Preliminary Proposal – PART B: Conservation objectives
Abstract: This report summarizes the results of a series of international workshops specifically ... develop to assist in the Domain 1 MPA planning process, including the 2012- First International Workshop ... held in Valparaiso, Chile, (WG-EMM 12/69); the 2013 – Binational Workshop (Chile-Argentina) held in La ... Serena, Chile (WG-EMM 14/40), the 2015- Second International Workshop for identifying Marine Protected ...
Meeting Document : WG-EMM-17/24 : Autor(es): Delegations of Argentina and Chile
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Enhancing CCAMLR performance
Abstract: CCAMLR has a history of leadership in conservation and management, yet the outcomes of ... recommends that as CCAMLR reviews the outcomes of the second Performance Review, it also considers how to ... implement outstanding recommendations from the first Performance Review. Implementation should take into ... account recommendations on the same issues from the second Performance Review as well as recent CCAMLR ...
Meeting Document : CCAMLR-XXXVI/BG/28 : Autor(es): Submitted by ASOC
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Preliminary assessment of toothfish in Subarea 48.3
Abstract: As with the 2009 assessment of Subarea 48.3, there is still uncertainty as to why there ... were high numbers of the 2001 cohort in commercial catches in 2009 onwards. It is likely that it is ... due to a combination of a strong 2001 cohort and a change in selectivity for the commercial fleet, but ... it has not been possible to determine the relative importance of each explanation. Median log-normal ...
Meeting Document : WG-FSA-11/33 Rev. 1 : Autor(es): T. Peatman, R.E. Mitchell, G. Parkes and D.J. Agnew (United Kingdom)
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Depletion-based stock reduction analysis: a catch-based method for determining sustainable yields for data-poor fish stocks
for data-poor fisheries in cases where approximate catches are known from the beginning of ... exploitation. The method, called Depletion-Based Stock Reduction Analysis (DB-SRA), merges stochastic Stock ... specified based on general fishery knowledge of the relative location of maximum productivity and the ... relationship of MSY fishing rate to the natural mortality rate. This leaves unfished biomass as the only ...
Meeting Document : WG-SAM-11/P2 : Autor(es): E.J. Dick and A.D. McCall
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Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?
males and females, and these often overlap. Whilst discriminant analysis can be used to determine the ... normal distributions are used to show that there is a difference between the real mean parameter for a ... sex, and the apparent mean derived by sexing the birds using discriminant analysis. When discriminant ... functions are able to correctly determine the sex of birds with greater than 80% success the difference ...
Meeting Document : WG-CEMP-92/11 : Autor(es): D.J. Agnew (Secretariat)
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Survey estimates of recruitment of toothfish in Subarea 48.3
data used by the Working Group for toothfish assessments in 1999 and later were correct. We found ... , the modal progression of peaks in the length densities corresponding to cohorts assessed by sequential ... surveys. Length based analysis of these confirms the growth rate expected from the CCAMLR growth equation ... for South Georgia. Although it is easy to spot cohorts, the size of individual cohorts can not be ...
Meeting Document : WG-FSA-SAM-04/16 : Autor(es): Collins, M., Wakeford, R.C., Moir-Clark, J., Belchier, M., Agnew, D.J.
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Research plan for exploratory fishing for toothfish (Dissostichus spp.) in 2015/16 in Division 58.4.1
with the other participants over the coming years in order to participate in the tagging program and ... achieve a robust stock assessment. The aim is to collect sufficient data to provide an advice on a catch ... /2016 developed under Conservation Measure 41-01. The biomass in the Division was estimated by research ... block during WG-FSA 2014 using CPUE x seabed analogy method. In the absence of an assessment using the ...
Meeting Document : WG-SAM-15/16 : Autor(es): Delegation of France