Resultados de la búsqueda
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Establishment of a cemp monitoring program at Bouvetøya
, South Atlantic Ocean. A permanent research station was established at the CEMP site, Nyrøysa, on the ... western coast of the island during the 1996/97 field season. Species included in the monitoring program ... are the Chinstrap Penguin, Macaroni Penguin and Antarctic Fur Seal. During the first field season ... (1996/97), monitoring of the following parameters were initiated for the two species of penguins ...
Meeting Document : WG-EMM-97/19 : Autor(es): Gjertz, I., Isaksen, K., Bakken, V., Mehlum, F.
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Albatross populations: status and threats
Abstract: The population and conservation status of the world's albatrosses are reviewed ... within the framework of recent taxonomic changes. The latest estimates of size of breeding populations ... (pairs) at all known localities of each of the 24 proposed species are presented; population trends are ... assessed where sufficient data are available. Despite increased efforts in population monitoring, the ...
Meeting Document : WG-FSA-97/28 : Autor(es): Gales, R.
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An integrated stock assessment of Patagonian toothfish (Dissostichus eleginoides) in CCAMLR Subarea 48.4
Abstract: This paper describes an update to the CASAL assessment of Patagonian toothfish (D ... . eleginoides) in Subarea 48.4. The assessment data time series are updated with the observations for the 2014 ... /15 season and several minor changes to the assessment are made: revision of tagging and recapture ... data for the full time series, a revised maturity ogive, and changes to the assumed tag growth ...
Meeting Document : WG-FSA-15/28 : Autor(es): M. Soeffker, V. Laptikhovsky, T. Earl and C. Darby (United Kingdom)
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Joint SC-CAMLR and SC-IWC Workshop, its format and draft Terms of Reference
Abstract: A proposal for a Joint SC-CCAMLR IWC Workshop to develop multi-species models of the ... Antarctic marine ecosystem was proposed at the SC-CCAMLR 2014, and a steering group for the Workshop was ... formed. WG-EMM 2015 agreed on the benefit of dividing the workshop into two; the first to review data ... availability, and the second as a comprehensive discussion of approaches in relation to modelling and ...
Meeting Document : SC-CAMLR-XXXIV/BG/33 : Autor(es): Co-conveners of the Joint SC-CAMLR and SC-IWC Workshop
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Krill fishery report: 2007 update
Abstract: As reported to the CCAMLR Secretariat, 5 vessels from 3 Contracting Parties are fishing ... for krill in Area 48 in the 2006/07 season, and these vessels have taken 61876 t of krill to date. Two ... CCAMLR scientific observers have been deployed. The preliminary estimate of the total catch of krill for ... the season is approximately 111746 t. This compares with 106589 t of krill reported in the STATLANT ...
Meeting Document : WG-EMM-07/05 : Autor(es): Secretariat
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A nonparametric algorithm to model movement between polygon subdomains in a spatially explicit ecosystem model
part of the modelling effort. In marine applications, a flow field grid describing the water movement ... usually forms the basis for movement of passive or nearly passive biomass. Grid-based advection algorithms ... are not designed to model movement on the larger scale of polygons, resulting in disproportionately ... effective algorithm to model movement at the polygon level is proposed, preserving the general properties of ...
Meeting Document : WG-EMM-06/35 : Autor(es): T. Lenser and A. Constable (Australia)
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Modelling catch and effort data using generalised linear models with random cruise effects: trawl fishery for mackerel icefish (Champsocephalus gunnari) in CAMLR Area 58.5.2
models (GLMMs) including data analytic methods for examining the appropriateness of model structure and ... parameter values was presented in WG-FSA-SAM 03-12 using Dissostichus eleginoides in Subarea 48.3 of the ... CAMLR area as an example dataset. The application of these procedures to trawl catches of ... Champsocephalus gunnari in Subarea 58.5.2 is described. For the trawl catch and effort data it was found the ...
Meeting Document : WG-FSA-03/35 : Autor(es): S.G. Candy (Australia)
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Age-at-length of Patagonian toothfish from South Georgia
Abstract: To provide an age-length key for use in modelling the age structure of the Patagonian ... toothfish stock around South Georgia, we used otoliths to estimate the age of a sample of 264 Patagonian ... toothfish (Dissostichus eleginoides) captured in the longline fishery. We used a thin section grinding ... machine to reveal a transverse plane through the otolith nucleus and between crenellations. A single ...
Meeting Document : WG-FSA-02/75 : Autor(es): J. Ashford, M. Belchier, C. Jones and S. Bobko
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SPATIAL PATTERNS IN MACKEREL ICEFISH DIET PROVIDES INSIGHTS INTO KRILL ABUNDANCE AND DISTRIBUTION
Abstract: The diet of mackerel icefish was investigated from stomachs of 828 fish caught on the ... South Georgia and Shag Rocks shelves in January 2009. The results show that the diet of this normally ... krill-dependent species was dominated by the hyperiid amphipod Themisto gaudichaudii (92 % IRI) and was ... low in Antarctic krill (7 % IRI) compared with similar data for the same month in 2004-2006. The ...
Meeting Document : WG-EMM-09/27 : Autor(es): M.A. Collins and C.E. Main (United Kingdom)
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Preliminary results from CEMP monitoring of Antarctic fur seals, chinstrap penguins and macaroni penguins at Bouvetøya 1996/97
was established at the CEMP site, Nyrøysa, on the western coast of the island. Species included in the ... Ocean, during an expedition to the island from 9 December 1996 to 22 February 1997. A research station ... monitoring program are the Chinstrap Penguin, Macaroni Penguin and Antarctic Fur Seal. Preliminary results ... from the first season of CEMP monitoring (parameters A3, A4, A5, A6, A8, A9, C1 and C2) are reported ...
Meeting Document : WG-EMM-97/20 : Autor(es): Hofmeyr, G.J.G., Dyer, B.M., Næstvold, A., Mehlum, F., Gjertz, I., Bakken, V., Isaksen, K., Huyser, O.