Résultats de la recherche

1. A hypothetical life cycle for Antarctic toothfish Dissostichus mawsoni in Antarctic waters of CCAMLR Statistical Area 88

   larvae after an 18–24 month period suggested by the models agreed moderately well with the distribution ... Abstract:  Aspects of the reproduction, size distribution, and movements of Antarctic toothfish ... Dissostichus mawsoni in CCAMLR Statistical Areas 88.1 & 88.2 were reviewed. Based on the presumed location ... and timing of spawning, and the probable early life history characteristics of toothfish, we ...

   Meeting Document : WG-FSA-07/35 : Auteur(s): S.M. Hanchet, G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams (New Zealand)

2. A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments

   significantly influence the LFD helps in evaluating how to account for important differences in availability and ... /or gear specific selectivity. A distribution-free model of LFD is described which is fitted to the ... discrete-valued covariates of gear type, spatial block, depth strata, and optionally the sex of sampled ... fish. The L s were modelled as a Gaussian response variable using a Generalised Additive Mixed Model ...

   Meeting Document : WG-SAM-13/18 : Auteur(s): S. Candy, P. Ziegler and D. Welsford (Australia)

3. BEACH DEBRIS SURVEYS SOUTH SANDWICH ISLANDS

   deposition is similar to, but at the lower end of, the range reported from beaches on Signy Island, South ... Abstract:  Beach debris surveys were carried out at two sites in the South Sandwich Islands ... (CCAMLR sub-area 48.4) during the 1996/7 austral summer. Two surveys of a north-east facing beach (1 km ... in the group. Only 8 items were found in the initial survey of Demon Point, Candlemas Island. However ...

   Meeting Document : CCAMLR-XVI/BG/10 : Auteur(s): Delegation of the United Kingdom

4. Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins

   Abstract:  1. Estimating food consumption is central to defining the ecological role of marine ... , growth, diet, life history and the activity budgets of marine predators to estimate population energy ... and macaroni penguin Eudyptes chrsolophus) that feed on krill in the Southern Ocean were used as ... examples to test the algorithm. A sensitivity analysis showed that estimates of prey consumed were most ...

   Meeting Document : WG-EMM-02/23 : Auteur(s): I.L. Boyd (United Kingdom)

5. An index of per capita recruitment

   cycles in recruits per spawner after a 20% random sampling error was added to the value of R1 used in the ... )eM where R1 is the proportion of age-1 animals sampled in year y and M is the post-recruit mortality ... rate. The intent of the index is to facilitate investigation of reproductive success and the factors ... postulated to affect it. The formulation of PCR is based on the assumptions that: 1) post-recruit mortality ...

   Meeting Document : WG-EMM-99/50 : Auteur(s): R. Hewitt (USA)

6. Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H

   Abstract:  In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... work. This was presented to WG-SAM in 2014, and found that the models were unable to fit patterns in ... the recaptures of tagged fish seen in the SSRU 88.2H fishery. The patterns showed a sharp decay rate ... of the decay rate over time, and a trend for increasing proportions of tagged fish caught over time ...

   Meeting Document : WG-FSA-14/56 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

7. Fishing and conservation in southern waters

   and the Kerguelen Islands. After 15 years of exploitation, most fish stocks have been heavily depleted ... Abstract:  Fishing in the Southern Ocean commenced on finfish in 1969/70 and on krill in 1972/73 ... . The former Soviet Union has been the most important fishing nation, taking 80-90 % of the entire catch ... . The krill catch from the Southern Ocean has been 4.9 million tonnes to date. More than 90 % of this ...

   Meeting Document : SC-CAMLR-XII/BG/11 : Auteur(s): Delegation of Germany

8. CCAMLR-IWC WORKSHOP TO REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008

   Abstract:  The “CCAMLR-IWC Workshop to review input data for Antarctic marine ecosystem models ... ” will be held at the CCAMLR Headquarters in Hobart Australia on 11-15 August 2008. This paper provides ... an update on progress towards the holding of this workshop at the CCAMLR Secretariat. A revised ... budget is presented for consideration primarily to take account of the review materials being produced ...

   Meeting Document : WG-EMM-08/15 : Auteur(s): A. Constable and N. Gales (Co-conveners)

9. CCAMLR ecosystem monitoring and management: future work

   Abstract:  Harvesting of marine living resources in the Southern Ocean is managed by the ... Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR).  CCAMLR is widely known for ... its ecosystem-approach to managing fisheries with the maintenance of ecological relationships included ... in the conservation objectives.  In the late 1980s, the precautionary approach of CCAMLR was ...

   Meeting Document : WG-EMM-12/P05 : Auteur(s): A.J. Constable

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

    Abstract:  With this working paper the Delegation of Germany calls attention to the background ... document SC-CAMLR-XXXIII/BG/02. The document (in its final version) provides the scientific basis for the ... evaluation of marine protected areas (MPAs) in the Weddell Sea. At present the background document presents a ... comprehensive yet incomplete first version with chapters that have to be (further) developed or revised. The ...

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

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