Résultats de la recherche
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Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal and behaviour for krill distribution – a project update
Abstract: This paper provides an update on the joint UK-Norway MMAK project, funded by the ... Antarctic Wildlife Research Fund, to improve current understanding of the regional and local-scale processes ... that influence the distribution of Antarctic krill in CCAMLR Area 48, focussing in particular on the ... investigate the impact of physical and behavioural processes on the distribution of krill in this area, at ...
Meeting Document : WG-EMM-18/06 : Auteur(s): S.E. Thorpe, E.F. Young, E.J. Murphy, O.R. Godø and A.H.H. Renner
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The krill fishery observer manual – points to be revised
Abstract: This document lists up the current form to be filled in the observer manual for the ... krill fishery. I raise the underlying problem to be clarified or modified. This includes technical ... problems, workload limit, and also the problem of the commercial confidentiality. The current manual ... consists of nine forms and some of them were developed independent from other forms. Once the observer at ...
Meeting Document : WG-EMM-02/29 : Auteur(s): S. Kawaguchi (Japan)
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Note on relationship between the Antarctic krill and annual variation of ice edge during 1979 to 1992
Abstract: During 1979 to 1991, relationship between the size of Antarctic krill and the extent of ... the sea ice in the sea area around the South Shetland Islands are described. Mean size of krill near ... the coastal zone appeared to be small in summer season just after a strong ice extent had occurred ... . This implies that strong recruitment of small size krill had occurred just after the season with the ...
Meeting Document : WG-KRILL-93/26 : Auteur(s): M. Naganobu and S. Kawaguchi (Japan)
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A simple approach for calculating the potential yield of krill from biomass survey results
Abstract: Estimates are calculated for the parameter λ in the yield equation Y = λ M B0 for a ... kri11 fishery in which both the fishery and kri11 growth are seasonal. The criterion used for the ... calculations is that the probability that the kri11 spawning biomass drops below 20% of its average pre ... -exploitation level over a 20 year period of harvesting should not exceed l0%. The value of λ depends strongly ...
Meeting Document : WG-KRILL-91/24 : Auteur(s): D.S. Butterworth (South Africa) and M. Basson (United Kingdom)
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Some aspects of size composition dynamics of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea (Statistical Subarea 88.1)
Abstract: The analysis of the data on size composition of Antarctic toothfish (Dissostichus ... mawsoni) from catches in different statistical areas of the Ross Sea was given. Biological data for two ... the size composition of the fished part of Antarctic toothfish population. It was noted that during ... both periods of the fishery, in the southern statistical areas (SSRU H, I, K, L), the portion of small ...
Meeting Document : WG-FSA-12/17 : Auteur(s): A.K. Zaytsev (Ukraine)
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IMPLEMENTATION OF THE SYSTEM OF INSPECTION AND OTHER CCAMLR COMPLIANCE-RELATED MEASURES IN 2009/10
Abstract: IMPLEMENTATION OF THE SYSTEM OF INSPECTION AND OTHER CCAMLR COMPLIANCE-RELATED MEASURES ... IN 2009/10 INTRODUCTION This paper summarises information on the implementation of the System of ... Inspection and compliance-related conservation measures during the 2009/10 intersessional period. Information ... on the implementation of conservation measures related to fisheries management and the submission of ...
Meeting Document : CCAMLR-XXIX/BG/07 : Auteur(s): Secretariat
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The effect of temporal variability on power analysis predictions for Adélie penguin CEMP parameters at Béchervaise Island
Abstract: There are unresolved issues surrounding the use of power analyses for examining the ... ability of CEMP data to detect change. The effect size that should prompt a response if observed in a ... parameter and the likely response of parameters such as arrival or fledgling weights are two of these issues ... . Understanding the source of the variability required to generate ‘noise’ for the power analysis simulations is ...
Meeting Document : WG-EMM-03/49 : Auteur(s): L.M. Emmerson and C. Southwell (Australia)
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Proposal to amend the fishing season for longline vessels fishing for Dissostichus eleginoides in Subarea 48.3 and trial two further 5 day season extensions
Abstract: Following the successful earlier start of the Dissostichus eleginoides fishing season ... in Subarea 48.3 (26th April in 2009/10 and 21st April in 2010/11) this paper summarises the results ... of the past two seasons and proposes moving the beginning of the fishing season to the 21st April ... with a further two five day extensions over the next two years to the 16th and then the 11th April ...
Meeting Document : WG-IMAF-11/09 : Auteur(s): J. Brown (United Kingdom)
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DEPREDATION AROUND SOUTH GEORGIA AND THE IMPLICATIONS ON STOCK ASSESSMENT OF D. ELEGINOIDES
Abstract: Observer data collected on longliners between 2003 and 2009 was analysed to look at the ... %) with killer whales present on 562 lines (3.8%) and sperm whales on 2588 lines (17.7%). By comparing the ... catch per unit efforts (CPUEs) with and without the presence if cetaceans, the amounts lost were also ... examined and varied from 0.9% to 5.8% of the TAC per year over the time period. Additional work was also ...
Meeting Document : WG-FSA-09/16 : Auteur(s): J. Moir Clark, D.A. Agnew, P. McCarthy and M. Unwin (United Kingdom)
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Hatching season and growth of Pleuragramma antarcticum larvae near the Antarctic peninsula in austral summer 1993/94
Abstract: Hatching season and larval growth of Pleuragramma antacticum in the water off Antarctic ... Peninsula were determined by the examination of growth increments in otoliths. The samples were collected by ... (54 inds. out of 77 fish larvae) in ichthyoplankton samples, and occurred mainly in cold water of the ... to 260 μm, and linearly related to body size (L); R =- 43.6 + 5.99 L (r2=0.79). The mean size of ...
Meeting Document : WG-EMM-96/65 : Auteur(s): Cha, S.S., Lee, T.W., Kim, S.