Résultats de la recherche

1. Estimating fishing gear selectivity for Patagonian toothfish (Dissostichus eleginoides) caught by trawlers on the Heard Island plateau region (Division 58.5.2) using trawl and longline length frequency data and forward-calculated continuation ratios

   Abstract:  Length-dependent fishing selectivity for trawlers fishing for the Patagonian toothfish ... (Dissostichus eleginoides) on the Heard Island Plateau (Division 58.5.2) was modelled as a 3-segment linear ... selectivity and a plateau section in between for the length range where fish are assumed fully selected. Using ... -2005 the upper arm of the gear selectivity function for trawlers is estimated using a two-stage process ...

   Meeting Document : WG-FSA-05/65 : Auteur(s): S.G. Candy (Australia)

2. Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001

   around Elephant Island during 27 January to 4 February 2001. Results show a spatial separation of the ... juvenile and the spawning stock. The station grid was extended to the south, where a large proportion of ... during the past years (between 198 and 230 krill 1000 m-3, i.e. between 40 and 46 m-2 or 11.3 g m-2). The ... proportional recruitment index for the entire survey area for the 1999/2000 year class was R1 = 0.573, and the ...

   Meeting Document : WG-EMM-01/10 : Auteur(s): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)

3. BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97

   plastic pieces to avoid that tllis material may enter the CEMP Site during storms and windy weather. As it ... ) were 421 articles. The total density of marine debris collected on the site has increased from 0.65 ... Abstract:  During the Antarctic season 1996/97 a beach debris survey was carried out on the ... occurred in all previous seasons with monitoring activities, plastic was the principal item (1517 pieces ...

   Meeting Document : CCAMLR-XVI/BG/35 : Auteur(s): Delegation of Chile

4. Temporal variation in Antarctic sea-ice: analysis of a long-term fast-ice record from the South Orkney Islands

   Abstract:  Detection of climate-induced change in marine ecosystems requires a knowledge of the ... underlying variability of the environment. This paper uses a range of datasets to investigate the interannual ... variability in Southern Ocean sea-ice dynamics. We present the first analysis of a series of fast-ice duration ... data from Signy Island, which we have cross-calibrated and combined with an earlier series from the ...

   Meeting Document : WG-EMM-95/80 : Auteur(s): Symon, C., Murphy, E.J., Priddle, J., Clarke, A.

5. Development of a five-year work plan for the CCAMLR Scientific Committee

   Abstract:  At last year’s meeting, it was agreed that a five-year work plan for the Scientific ... Committee should be developed for consideration by the Scientific Committee in 2017 (SC-CAMLR-XXXV ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ...

   Meeting Document : WG-EMM-17/02 : Auteur(s): M. Belchier (Chair of SC-CAMLR)

6. ECOSYSTEM SERVICES OF THE SOUTHERN OCEAN

   Abstract:  The Southern Ocean is a globally important marine region, providing a range of ... ecosystem services which support human life, health and well-being, including the provision of marine living ... resources, and the regulation of global climate and sea level. Assessing ecological processes in terms of ... the services they provide translates the complexity of the environment into functions which can be ...

   Meeting Document : WG-EMM-11/21 : Auteur(s): S.M. Grant, S.L. Hill and P.N. Trathan (UK)

7. OCCURRENCE OF DWARF MINKE WHALES (BALAENOPTERA ACUTOROSTRATA SUBSP) AROUND THE ANTARCTIC PENINSULA

   Abstract:  The occurrence of dwarf minke whales (Balaenoptera acutorostrata subsp.) around the ... Antarctic Peninsula was examined based on 406 sightings of minke whales recorded during the Chilean ... Antarctic Scientific Expeditions and other opportunistic cetacean surveys. Identification of the species was ... made only for the whales sighted in the proximity of the vessels when the specific diagnostic ...

   Meeting Document : WG-EMM-11/P2 : Auteur(s): J. Acevedo, C. Olavarría, J. Plana, A. Aguayo-Lobo, A. Larrea and L.A. Pastene

8. Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport

   in the Southern Ocean. Krill have a close association with sea ice which provides access to a ... critical food source and shelter, particularly in the early life stages. Advective modelling of transport ... . Here we present Lagrangian modelling studies at the circumpolar scale that include interaction with sea ... ice. The advection scheme uses ocean velocity output from the Ocean Circulation and Climate Advanced ...

   Meeting Document : WG-EMM-07/P10 : Auteur(s): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)

9. An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   using CASAL and demonstrates that all of the data available for assessments, including surveys, fishery ... -binned mark-recapture data, can be incorporated into the model. Earlier difficulties in using CASAL have ... been resolved. The results presented here indicate a general downward bias in the expected recaptures ... showing that the mark-recapture observations indicates a smaller stock size than the other datasets. This ...

   Meeting Document : WG-FSA-06/64 : Auteur(s): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)

10. Hydrography and acoustic biomass estimates of Antarctic krill (Euphausia superba) near the South Shetland Islands, Antarctica, during January 2000: preliminary results

    Abstract:  To estimate the abundance and distribution of Antarctic krill (Euphausia superba) in ... the vicinity of South Shetland Islands (SSI), a hydroacoustic/oceanographic survey was conducted by ... the R/V Onnuri from 9 to 19 January 2000. The acoustic data were obtained using a Simrad EK500 ... echosounder operating at 38, 120, and 200 kHz, from 8 transects comprising the South Shetland Islands (SSI ...

    Meeting Document : WG-EMM-00/52 : Auteur(s): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)

Pages