Résultats de la recherche
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A spatial multi-species operating model (SMOM) of krill–predator interactions in small-scale management units in the Scotia Sea
Abstract: A Spatial Multi-species Operating Model (SMOM) of the underlying krill-predator-fishery ... dynamics is developed in response to requests for scientific advice regarding the subdivision of the ... precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the Scotia Sea to reduce ... the potential impact of fishing on land-based predators. The model is intended to complement the ...
Meeting Document : WG-EMM-06/12 : Auteur(s): É. Plagányi and D. Butterworth (South Africa)
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Comparison of the catches and biological characteristics of Dissostichus mawsoni in Subarea 88.1 in seasons of 2002/03 and 2003/04
. mawsoni) conducted by the Russian vessels “Yantar” and “Volna” for two seasons of 2002/03 and 2003/04. The ... different SSRU, month and depth of sets longlines. The comparison of these resultants showed that in the ... mln. hooks in 2002/03, and 222 sets and 1,79 mln. hooks in 2003/04). But the total catch of D.mawsoni ... has been also much smaller in 2003/04 season. The analysis of the length composition fish from the ...
Meeting Document : WG-FSA-04/84 Rev. 1 : Auteur(s): K.V. Shust, N.V. Kokorin and A.F. Petrov (Russia)
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The Generalised Yield Model version 5: structure, specifications and examples for validation
Abstract: The Generalised Yield Model (GYM) was first developed in 1995 as a generalised form of ... the Krill Yield Model, which was based on the method for evaluating yield developed by Beddington & ... ; Cooke (1983). The first version incorporated options for assessing long-term annual yield according to ... the units of biomass and relative to the recruitment parameters (as in toothfish) or according to a ...
Meeting Document : WG-FSA-SAM 03/14 : Auteur(s): A. Constable (Australia)
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Notes on Champsocephalus gunnari biology, availability, diet and spatial distribution in the South Shetland and South Orkney Islands (Subareas 48.1 and 48.2)
Abstract: Stocks of the mackerel icefish Champsocephalus gunnari in the Southern Scotia arc ... region of the Southern Ocean (CCAMLR Subarea 48.1 & 48.2) have several different biological ... characteristics than stocks in the Northern Scotia Arc. The history of commercial C. gunnari exploitation in the ... Southern Scotia Arc was short lived and intense, and led to the collapse of the stocks. Stocks in this ...
Meeting Document : WAMI-01/10 Rev. 1 : Auteur(s): C.D. Jones and J. Emery (USA)
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The breeding biology and distribution of Adelie penguins: adaptations to environmental variability
Abstract: Adelie penguins are long-lived, highly philopatric seabirds that dominate the bird ... biomass of the Western Antarctic Peninsula region, and serve as focal animals for our Long Term Ecological ... Research (LTER) study of the effects of environmental variability on animal populations in the Antarctic ... marine ecosystem. The major physical factors affecting the breeding success, distribution and demography ...
Meeting Document : WG-EMM-96/58 : Auteur(s): Fraser, W.R., Trivelpiece, W.Z.
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Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ... presented are the first attempt to develop the method of instrumental assessment of the «escape mortality ...
Meeting Document : WG-EMM-10/18 : Auteur(s): V.K. Korotkov and S.M. Kasatkina (Russia)
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Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a
Abstract: Catch and effort data recorded by all vessels were analyzed using the latest CCAMLR C2 ... and observer data. The stock size estimate for a research block (5843a) was revised following advice ... in the last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each ... block in such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ...
Meeting Document : WG-FSA-13/40 : Auteur(s): Delegation of Japan
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Revised research plan for the exploratory fisheries for Dissostichus spp. in Subarea 48.6 in 2014/15
Abstract: The stock sizes for five research blocks (486_1, 486_2, 486_3, 486_4 and 486_5) were ... estimated by the Petersen estimator and the CPUE x seabed analogy method using updated CCAMLR C2 data and ... reference area sizes. The stock size estimate using the Petersen estimator was similar to that using the ... , the estimates using the Petersen estimator were different from those using the CPUE method in other ...
Meeting Document : WG-FSA-14/17 : Auteur(s): Delegation of Japan
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Plan of research program of the Russian Federation in Subarea 48.5
Abstract: Closed mostly within the Weddell Sea Subarea 48.5 is one of the closed data-poor CCAMLR ... Subareas. Stock assessment of this area should be calculated basing on the newest and adequate data ... . Despite the difficult ice conditions the Weddell Sea is the largest enclosed near-continental sea of the ... Antarctic which is very similar to the Ross Sea in some respects like shape, bathymetrical profile and ...
Meeting Document : WG-SAM-15/18 : Auteur(s): Delegation of the Russian Federation
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A feedback management strategy for the krill fishery in Subarea 48.1
Abstract: We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM. A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ... central to the strategy proposed here. In “plain English” that decision rule has four components. 1) If ...
Meeting Document : WG-EMM-16/48 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss