Résultats de la recherche

1. Modelling the dynamics of krill populations in the Antarctic Peninsula region

   data for the first age class produced an instantaneous mortality rate estimate of approximately 0.6 ... observed density changes. The need for caution in interpreting the model results was emphasized by an ... the population in the Antarctic Peninsula region. Two approaches have been explored: the first uses ... a relatively poor fit to the observed data. Using the recruitment data for the second age class ...

   Meeting Document : WG-EMM-99/56 : Auteur(s): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)

2. Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate

   Abstract:  Power analyses were carried out using a 12 year data set from the Béchervaise Island ... temporal change in CEMP Parameter A5 (penguin foraging trip duration). Two different types of systematic ... enhanced detection of change for birds monitored in the guard stage of chick rearing. However, caution must ... three years or alternatively, with equal power, a 3.75% annual increase in trip duration after 12 years ...

   Meeting Document : WG-EMM-05/22 : Auteur(s): J. Clarke, C. Southwell and L.M. Emmerson (Australia)

3. Bycatch of fishes captured by the krill fishing vessel Chiyo Maru No. 2 in Statistical Area 58 (January to March 1995)

   ). In numbers, an average of about 20 fish were caught per ton of krill, and an average of about 23 fish ... krill, and an average of about 2 kg of fish were caught per hour of towing. Confidence intervals for ... noted that the results for reporting fish bycatch were not presented in CCAMLR's standard format ... were caught per hour of towing. In weight, an average of about 1.5 kg of fish were caught per ton of ...

   Meeting Document : WG-FSA-95/40 Rev. 1 : Auteur(s): Watters, G.

4. Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch

   'S to 61°13'S and long.30°02'E to 40°05'E. These were analysed onboard FORV Sagar ... Sampada for the study of biology, distribution and abundance. The samples were collected for a period of ... trawl. The length frequency analysis indicated a bimodel distribution with 19-20 mm and 53-54mm as the ...

   Meeting Document : WG-EMM-98/37 : Auteur(s): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)

5. Uncertainty in echosounder calibrations

   sphere TS versus time. Over two 15 hour periods, the measured TS ranged 1.2 dB for a 23.0 mm Cu sphere ... and 1.4 dB for a 38.1 mm WC sphere. Vector admittance measurements were made of an ES120 transducer ... Abstract:  Calibration of echo sounders for fish stock assessment are commonly performed using the ... deviations of 0.1, 0.3, and 0.2 dB, respectively. To characterize the precision of the method for a fixed ...

   Meeting Document : WG-EMM-96/40 : Auteur(s): Soule, M.A., Demer, D.A.

6. CCAMLR research and exploratory fishing: commercial fishing disguised as scientific research

   Review and several Scientific Committee working groups have raised concerns regarding the current ... reporting requirements. Establish clear standardised requirements for research, new, and exploratory fishing ... Status:  Content Approved Document Release Consent:  Yes Delegation responsibility for releasing ... exploratory fishing activities are not increasing our understanding of the fished species and its impact on ...

   Meeting Document : SC-CAMLR-XXXVII/BG/28 : Auteur(s): Submitted by ASOC

7. Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)

   , approximately 20 t of C. rhinoceratus and 9 t of L. squamifrons were caught annually. The commercial and ... bycatch of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries ... precautionary bycatch limits set by CCAMLR, move-on rules apply, and a substantial part of their distribution ...

   Meeting Document : WG-FSA-12/24 : Auteur(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)

8. SPATIAL PROTECTION AND MANAGEMENT OF ANTARCTIC MARINE BIODIVERSITY

   appropriate tools for marine spatial protection and management are already in place, that scientific ... protection for Antarctic marine biodiversity across the Antarctic Treaty System. Author(s):  S. Grant (United ... Abstract:  This paper is based on a presentation given at the Joint CEP/SC-CAMLR Workshop (3-4 ... April 2009). It provides information on the different objectives and types of marine spatial protection ...

   Meeting Document : WG-EMM-09/09 : Auteur(s): S. Grant (United Kingdom)

9. REVISION OF CCAMLR’S SYSTEM OF INSPECTION

   revisions in 20 years. A major overhaul is proposed to modernize the boarding and inspection scheme in the ... and innovative conservation measures CCAMLR has introduced in recent years to combat illegal ...

   Meeting Document : CCAMLR-XXVIII/40 Rev. 1 : Auteur(s): Delegation of the USA

10. A preliminary assessment of age and growth of eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) in the Ross Sea, Antarctica

    Abstract:  Samples of an eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) were ... obtained from the bycatch of the longline fishery for toothfish (Dissostichus mawsoni and D. eleginoides ... growth parameters for these species. The estimates must be considered preliminary because they are ... estimated age of 9.5 years. Von Bertalanffy parameters derived from female and unsexed fish only are: L ...

    Meeting Document : WG-FSA-10/19 : Auteur(s): P.L. Horn and C.P. Sutton (New Zealand)

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