Résultats de la recherche
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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 : Auteur(s): T.A. Klevjer, O.R. Godø and B. Krafft (Norway)
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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 : Auteur(s): 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 : Auteur(s): Submitted by ASOC
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Stratégie salariale et de dotation en personnel de la CCAMLR (2019–2022)
Abstract: In 2017 SCAF directed the Secretariat to undertake a review of its Strategic Plan and ... its Staffing and Salary Strategy. Internal and external feedback received during the review supports a ... need to increase the proportion of IP positions at the Secretariat, and to strengthen the Secretariat’s ... current and future needs. The Secretariat proposes a new Strategic Plan to deliver these changes, to ...
Meeting Document : CCAMLR-XXXVII/21 Rev. 1 : Auteur(s): Executive Secretary
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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 : Auteur(s): T. Peatman, R.E. Mitchell, G. Parkes and D.J. Agnew (United Kingdom)
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Variations in food composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia
Abstract: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari ... ) around Shag Rocks and the mainland of South Georgia was investigated in January/February 1985, January ... superba), the hyperiid Themisto gaudichaudii, mysids and in 1985 also Thysanoessa species. The proportion ... of krill and Themisto in the diet items varied considerably between the three seasons, whereas the ...
Meeting Document : WG-FSA-92/26 : Auteur(s): K.-H. Kock (Germany), I. Everson (United Kingdom), S. Wilhelms (Germany), S. Campbell (United Kingdom), J. Szlakowski (Poland), G. Parkes (United Kingdom), Z. Cielniaszek (Poland) and C. Goss (United Kingdom)
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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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): Delegation of France
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Describing krill: swarms or integration intervals?
, rather than the current integration grid approach, may facilitate the semi-automated processing of ... estimated mean areal krill density for a small (65 km by 60 km) survey conducted in the waters off Mawson ... research station in the East Antarctic (66 o 25' S 63 o 14' E). I found 61 % overlap between the ... variance estimates for conventional grid-based swarm-based krill density. The processing time of the swarm ...
Meeting Document : SG-ASAM-17/02 : Auteur(s): M.J. Cox