Résultats de la recherche

1. Interannual variation in the autumn diet of the gentoo penguin Pygoscelis papua at Laurie Island, Antarctica

   Abstract:  The diet of the gentoo penguin Pygoscelis papua was investigated during three different ... migrant adults were sampled during 1993, 1995 and 1996. Fish were the most important prey by mass in 1995 ... largely the most important prey among the eleven crustacean taxa identified in the samples. Among fish ... , species of the family Nototheniidae predominated in the diet with G. gibberifrons as the most important ...

   Meeting Document : WG-EMM-99/19 : Auteur(s): N. Coria, M. Libertelli, R. Casaux and C. Darrieu (Argentina)

2. Avoidance of incidental mortality of seabirds and the implementation of Conservation Measure 169/XVII in Statistical Subarea 88.1 in the 1998/99 season

   Abstract:  New Zealand conducted Longline weighting trials during the 1998/99 fishery for ... provisions in Conservation Measure 169/XVII. The provisions included strictly applied line-weighting regimes ... and rigorous monitoring of line sink rates. In the trials, two autoline vessels set weighted longlines ... were used to record the actual sink rate achieved on 30% of all sets. For all sets combined the average ...

   Meeting Document : WG-FSA-99/35 : Auteur(s): J. Molloy and N. Smith (New Zealand)

3. PROPOSED SMALL-SCALE MANAGEMENT UNITS FOR THE KRILL FISHERY IN SUBAREA 48.4 AND AROUND THE SOUTH SANDWICH ISLANDS

   Abstract:  Relatively little ecological information is available for the South Sandwich Islands ... , so the diversity of information available to determine potential SSMU boundaries is limited ... . Nevertheless, a suggested SSMU is proposed, based on the foraging distance of the most abundant land-based ... consumer of krill breeding on the islands, the chinstrap penguin. The proposed SSMU represents a single ...

   Meeting Document : WG-EMM-08/11 : Auteur(s): P.N. Trathan, A.P.R. Cooper and M. Biszczuk (United Kingdom)

4. Exploring age and growth dynamics of a historically overfished Sub-Antarctic fish species: The grey rockcod (Lepidonotothen squamifrons) in the vicinity of Heard Island and McDonald Island

   Abstract:  The grey rockcod (Lepidonotothen squamifrons) was fished to commercial extinction on ... the Kerguelen Plateau by unregulated fishing during the 1970s/80s. Since the mid-1990s little work has ... been performed to assess the status of this species within the Heard Island and McDonald Island region ... 24. Through the mapping of abundances the presence of three distinct geographical populations were ...

   Meeting Document : WG-FSA-15/51 : Auteur(s): D. Maschette, D.C. Welsford and C. Gardner (Australia)

5. Preliminary results on the distribution and abundance of Antarctic krill (Euphausia superba) in the Weddell Sea, Southern Ocean

   Abstract:  Hydroacoustic data were collected to study the distribution and abundance of Antarctic ... krill relative to their predators in the Southern Ocean during annual logistic summer trips and ... dedicated research winter trips to Antarctica on board the South African RV SA Agulhas II. The 38, 120 and ... 200 kHz transducers mounted on the drop keel of the research vessel were used to collect acoustic data ...

   Meeting Document : SG-ASAM-18/09 : Auteur(s): F.W. Shabangu

6. A single-area stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the 2004/05 season

   model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B ... ). A range of model sensitivities were examined, with the base case assuming the Ross Sea fishery as a ... , slope, and north). Model fits to the data were adequate, with the tag-release and recapture data ... providing the most information on stock size. Monte-Carlo Markov Chain (MCMC) diagnostics suggested some ...

   Meeting Document : WG-FSA-05/33 : Auteur(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)

7. A GIS tool to assist in the planning and design of sample surveys of the abundance of colonial breeding species

   Abstract:  A GIS tool to assist in the planning and designing of surveys of colonial breeding ... species is described. The tool could be applied to any region of Antarctica given available colony map and ... count data. The tool currently implements only very simple survey designs, but could be further ... the example the tool is used to sample a population of Adelie penguins in the Holme Bay region of East ...

   Meeting Document : WG-EMM-05/25 : Auteur(s): C. Southwell, R. Dreissen, S. Candy, G. McPherson and J. Clarke (Australia)

8. The rate of incidental mortality of birds in the IUU longline fishery in Subarea 48.3

   Abstract:  Information on the rates of incidental mortality of birds experienced by IUU vessels is ... extremely difficult to obtain. CCAMLR has, in the past, used data from the 1997 legitimate fishery, when a ... large number of birds were caught and when the implementation of mitigation measures was low, to ... approximate the IUU situation. This paper describes analyses undertaken using the 1997 data to refine the ...

   Meeting Document : WG-FSA-02/5 : Auteur(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)

9. The diet of toothfish species Dissostichus eleginoides Smitt and D. mawsoni Norman with overlapping distributions around the South Sandwich Islands, Southern Ocean

   Abstract:  The diet of Antarctic toothfish (Dissostichus mawsoni) and Patagonian toothfish (D ... . eleginoides) was examined around the south sandwich islands in the southern ocean, one of few regions with ... overlapping populations of the two species. Despite large differences in the proportion of stomachs containing ... muraenolepidids) and cephalopods (mainly Kondakovia longimana) comprising more than 90 % of the prey mass of both ...

   Meeting Document : WG-FSA-11/P03 : Auteur(s): J. Roberts, J. Xavier and D. J. Agnew

10. CPUES and body length of Antarctic krill during 1993/94 season in the fishing grounds around the South Shetland Islands

    . Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... , and the west of Elephant Island from April to May. CPUEs showed the highest values at the height of ... summer (early February- early March) in the north of Livingston Island, and April at the west of Elephant ... Island. Krill with a modal length of 41-45mm were dominant in catches, almost same as the previous season ...

    Meeting Document : WG-EMM-95/51 : Auteur(s): Kawaguchi, S., Ichii, T., Naganobu, M.

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