Résultats de la recherche

1. Sampling toothfish from longlines with unequal probabilities

   number of baskets taken while hauling a line, observers can use this to establish a point at which to ... Abstract:  To obtain a representative sample of the catch taken by toothfish longliners, CCAMLR ... observers are recommended to sample a quota of the first 30 fish that are caught during a sampling session ... unequal probabilities which, if unaccounted for, can lead to serious biases in estimates of population ...

   Meeting Document : WG-FSA-03/85 : Auteur(s): J.R. Ashford (USA)

2. A by-catch guide for commonly caught species in CCAMLR longline and trawl fisheries

   Abstract:  As requested by members at WG-FSA 15, the Secretariat has collated existing materials ... fisheries. The guide consists of comprehensive descriptions for 21 species, and two additional appendices ... reviewing the draft version of this guide. Additionally, images in this guide have been provided for the ...

   Meeting Document : WG-FSA-16/17 : Auteur(s): CCAMLR Secretariat

3. Reducing seabird by-catch with an underwater longline setting funnel

   Abstract:  We tested the efficacy of a Mustad underwater setting funnel to reduce seabird bycatch ... deploys the longline 1-2 m beneath the sea surface, was used on 52% of 1714 sets (total effort 5.12 ... ), and was dominated by White-chinned Petrels Procellaria aequinoctialis (88% of the 114 birds killed ... ). Bycatch rate was three times lower when the funnel was used both by day and at night. Daytime catch rates ...

   Meeting Document : WG-FSA-00/29 : Auteur(s): P. Ryan and B. Watkins (South Africa)

4. Local biomass estimates for Antarctic (Dissostichus mawsoni) and Patagonian (Dissostichus eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4

   research nlocks in Subareas 48.6 and 58.4 using the methods agreed to at WG-SAM-16. The methods used to ... generate the biomass estimates are fully documented from the provison of data extracts (with associated ...

   Meeting Document : WG-FSA-16/27 : Auteur(s): CCAMLR Secretariat

5. Using compact video camera technology for rapid deep-sea benthic habitat assessment

   a drop camera included: 1. Rapid: Three, two minute replicates of footage at 1000m, including ... Ocean benthos, has a wider application in deep-sea marine research. The use of the system as a drop ... voyage on the shelf-break of East Antarctica, greatly improved the efficiency of selection of sites for ... quantitative sampling. The system is also promoted for estimates of krill biomass, swarm dynamics and ...

   Meeting Document : WG-EMM-10/24 : Auteur(s): G.P. Ewing, R. Kilpatrick, A.J. Constable and D.C. Welsford (Australia)

6. État d’avancement de la base scientifique en soutien de la création d'une AMP de la CCAMLR dans la mer de Weddell (Antarctique)

   evaluation of marine protected areas (MPAs) in the Weddell Sea. At present the background document presents a ... Abstract:  With this working paper the Delegation of Germany calls attention to the background ... contents and structure of the document reflect also its main objectives, i.e. (i) to set out the general ... background and context of the establishment of MPAs, (ii) to describe the boundaries of the Weddell Sea MPA ...

   Meeting Document : SC-CAMLR-XXXIII/08 : Auteur(s): Delegation of Germany

7. Risk maps for Antarctic krill under projected Southern Ocean acidification

   Abstract:  The embryonic development of Antarctic krill (Euphausia superba) is sensitive to ... elevated seawater CO 2 levels and successful hatching is impaired at CO 2 levels greater than 1000 μatm ... . Exposure to elevated CO 2 during the first 3 days of embryonic development significantly retards subsequent ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ...

   Meeting Document : WG-EMM-14/P06 : Auteur(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu

8. Field identification guide to the main fishes caught in the Ross Sea longline fishery

   longline boats fishing in the Ross Sea was prepared under the New Zealand Ministry of Fisheries Project ... ANT2005-02 and was used by Ministry of Fisheries observers and fishers during the 2006–07 season. That ... (eelpouts) and bathydraconids (dragonfishes) identification is at family level and for Muraenolepis (eel ... fishes is difficult because of uncertain taxonomic status, e.g., Pogonophryne, or scarcity of field ...

   Meeting Document : WG-FSA-07/41 : Auteur(s): P.J. McMillan, P. Marriott, S.M. Hanchet, J.M. Fenaughty, E. Mackay and H. Sui (New Zealand)

9. REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48

   Abstract:  In 2007 WG-SAM defined a set of reference observations for validating and tuning ... reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... , 2007 and at least one intermediate year. Recent work on baleen whales indicates a higher growth rate ... . The numerical calendar is a partly subjective interpretation of limited data and should not be ...

   Meeting Document : WG-EMM-08/10 : Auteur(s): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)

10. Revised research plan for toothfish in Division 58.4.4 b by Shinsei maru No. 3 in 2014/15

    (vulnerable biomass in 2013), respectively. The stock sizes of D. eleginoides in block D is estimated at 948 ... Abstract:  In this document, we revise stock status assessments of D. eleginoides in research ... blocks C and D using CPUE analogy method, Petersen method and CASAL model, although the data of current ... next fishing season with the same survey design and sample size of 60 tonnes in order to further ...

    Meeting Document : WG-FSA-14/21 : Auteur(s): Delegation of Japan

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