Résultats de la recherche
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Portail à l'intention des contrôleurs
You can order the following resources by emailing the cds [at] ccamlr [dot] org (subject ... Members. Identification document Inspectors are required to carry an identity document of the type shown ... the Commission to indicate that the Inspectors on board are carrying out inspection duties in ... identifying fishing gear that has been judged by an Inspector to be contrary to standards set by the ...
Page : Site Section: Compliance
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated from ... tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... , unchanged from the 2017/18 catch limit. Historically, a precautionary approach has been applied in treating ...
Meeting Document : WG-FSA-18/26 : Auteur(s): T. Earl and A. Riley
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Detection of predator dive patterns from stationary echosounder data
Abstract: Standard protocols for processing of echosounder data are geared towards the estimation ... of biomass indices of pelagic organisms. More transient visitors to the watercolumn however also give ... echoes, and the data provided by the echosounders may be used to assess the behaviour of these organisms ... , as well as their interactions with the pelagic residents. Using freely available software and neural ...
Meeting Document : WG-EMM-2019/34 : Auteur(s): T. Klevjer and G. Skaret
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Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
Abstract: The mean mercury level for the D. eleginoides 1998 sample was 0.43 mg/kg-1, which is ... slightly lower than the permissible level of 0.5 mg/kg-1 set by the New Zealand Food Safety Authority ... (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ...
Meeting Document : WG-FSA-07/24 : Auteur(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
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Review of biological parameters for Ross Sea skates
Abstract: Biological parameters were reviewed and updated for the two main species of skates ... taken as bycatch in the Ross Sea toothfish fishery: Amblyraja georgiana and Bathyraja cf. eatonii ... . Differences in length-weight relationships among regions raise doubt about the conspecificity of A. georgiana ... from the Ross Sea and South Georgia, and of B. cf. eatonii from the Ross Sea and Heard Island and the ...
Meeting Document : WG-FSA-06/31 : Auteur(s): M.P. Francis (New Zealand)
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PROPOSITION DE CAMPAGNE DE RECHERCHE FINANCEE PAR LA CCAMLR VISANT A SURVEILLER L'ABONDANCE DES PRE-RECRUES DE LEGINE ANTARCTIQUE DANS LE SECTEUR SUD DE LA MER DE ROSS
Abstract: The exploratory longline fishery for Dissostichus spp. has now been operating for 14 ... years in Subarea 88.1 and for nine years in Subarea 88.2. The research and assessment work in these ... areas on the distribution, abundance and demography of Antarctic toothfish (D. mawsoni) has led to an ... estimate of the fisheries potential yield. However, one source of ongoing uncertainty in the stock ...
Meeting Document : SC-CAMLR-XXX/07 : Auteur(s): Delegation of New Zealand
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LETTER TO DRS REID, WATTERS AND JONES IN REGARD TO “DISAPPEARANCE OF TOOTHFISH FROM MCMURDO SOUND”
Abstract: We the undersigned wish to bring to your attention a potentially grave situation that ... needs to be addressed without significant delay. Together we have worked in the Ross Sea and vicinity ... for more than 300 person-years, and in the process have gained considerable knowledge about the Ross ... Sea ecosystem. Several recent findings indicate that the Antarctic toothfish (Dissostichus mawsoni) is ...
Meeting Document : WG-EMM-08/20 : Auteur(s): D.G. Ainley, S.F. Ackley, K. Arrigo (USA), G. Ballard (New Zealand), J.P. Barry (USA), L. Blight (Canada), P. Broady, B. Davison (New Zealand), P. Dayton, A.L. DeVries, K. Dugger, J.T. Eastman, S.D. Emslie (USA), C. Evans (New Zealand), R.A. Garrott, G. Hofmann, S. Kim, G. Kooyman, S.S. Jacobs (USA), G. Lauriano (Italy), A. Lescroël (France), D.R. MacAyeal (USA), M. Massaro (New Zealand), S. Olmastroni (Italy), P.J. Ponganis (USA), E. Robinson (New Zealand), D.B. Siniff, W.O. Smith (USA), I. Sti
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Acoustic discrimination of southern ocean zooplankton
Abstract: Acoustic surveys in the vicinity of the sub-Antarctic island of South Georgia revealed ... the existence of a number of horizontally extensive yet vertically discrete scattering layers in the ... upper 250 m of the water column. These layers were fished with a LonghurstHardy plankton recorder (LHPR ... each scattering layer was composed predominantly of a single species of either the euphausiids ...
Meeting Document : WG-EMM-97/54 : Auteur(s): Watkins, J.L., Brierley, A.S., Goss, C., Ward, P.
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Diet variability and reproductive performance of macaroni penguins (Eudyptes chrysolophus) at Bird Island, South Georgia
breeding at Bird Island, South Georgia during the crèche period (January and February) between 1989 and ... 2010. Crustaceans were the main prey accounting for over 90 % of the diet by mass. Antarctic krill ... (Euphausia superba) was the main prey in 17 out of 22 years. Amphipods (Themisto gaudichaudii) were the main ... . frigida) in 2000. There was no clearly dominant prey group in 1999. The five-year average proportion of E ...
Meeting Document : WG-EMM-12/17 : Auteur(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan (United Kingdom)
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Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent
Abstract: The ability of Antarctic krill Euphausia superba Dana to withstand the overwintering ... during this time in response to the low availability of food. Nevertheless, verification that krill can ... shrink in the natural environment is lacking because winter data are difficult to obtain. One of the few ... adult krill (>35 mm total body length) obtained from commercial vessels in the Scotia-Weddell region ...
Meeting Document : WG-EMM-16/P04 : Auteur(s): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson