Resultados de la búsqueda

1. By-catch analysis as a part of progress report for the research fishery of Dissostichus spp. in Divisions 58.4.3a and 58.4.4b by Japan and France during 2012/13–2016/17

   the research block 58.4.3a. The results of the GLM and its model selection with AIC criteria indicates ... that the number of by-catch individuals is highest at the research block 58.4.4b_1 for GRV and ANT. As ... -catch pattern. Author(s):  T. Okuda, A. Rigaud, R. Sinegre and T. Ichii Title:  By-catch analysis as a ...

   Meeting Document : WG-SAM-17/45 : Autor(es): T. Okuda, A. Rigaud, R. Sinegre and T. Ichii

2. Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, Dr E. Holmberg survey, February 1995

   to be similar to that observed in the E. Holmberg survey in February/March 1994: common levels of ... Georgia and constituted the main food. At Shag Rocks, T. gaudichaudii was the main prey item (52 ... suggested that krill availability for C. gunnari around South Georgia in the 1995 summer season, was ...

   Meeting Document : WG-FSA-95/36 : Autor(es): Marschoff, E., Barrera-Oro, E., Casaux, R.

3. Towards an ecosystem status assessment for South Georgia ‘Variability of Southern Ocean Ecosystems’ Project Team

   1999. We plan to use these data, some of which arise from the British Antarctic Survey's Core ... Programme, to develop multivariate indices of "ecosystem status". We expect that such indices will ... lead to an improved understanding of some cause-and-effect mechanisms that underlie the pronounced ... interannual variability that we observe habitually in many components of the South Georgia marine ecosystem ...

   Meeting Document : WG-EMM-00/61

4. Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean

   Abstract:  During three summer surveys at Prince Edward Island (PEI), southern Indian Ocean (2001 ... all, 42 seals that had been tagged as weaned pups at their natal site were found on Marion Island (MI ... ), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ...

   Meeting Document : WG-EMM-10/P16 : Autor(es): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr

5. SUMMER SURVEY OF FUR SEALS AT PRINCE EDWARD ISLAND, SOUTHERN INDIAN OCEAN

   11.4% per year from 2001. With an estimated 810 pups, the Antarctic fur seal is still in the rapid ... December 2008. This repeats a survey conducted in December 2001 and extends the area surveyed to include ... colony among Subantarctic fur seals north of Boggel Beach remained small, with increased numbers of ... seals also had increased, with several new breeding colonies along the east coast and one at Kent Crater ...

   Meeting Document : WG-EMM-10/P15 : Autor(es): M.N. Bester, P.G. Ryan and J. Visagie

6. Data from recent trawl surveys in the vicinity of Heard Island and McDonald Islands (Division 58.5.2), reveal an unusual cohort structure in the mackerel icefish (Champsocephalus gunnari) population

   population, leading to a situation that is unusual for this region, with four or five successive year classes ... + cohort that dominated the population declined rapidly in late 2010. Two new cohorts are present in the ... all present simultaneously. A catch limit of 103 t is recommended for the 2011/12 season. Author(s ...

   Meeting Document : WG-FSA-11/22 : Autor(es): D.C. Welsford (Australia)

7. Detailed distribution of krill fishing around South Georgia

   available from August but the fishery was restricted in that period to an area on the western edge of the ... operated further west on a range of banks associated with submarine canyons. The data for 1993 were only ... relation to the ecology of krill and the fishery interaction with the local predator colonies. Author(s ...

   Meeting Document : WG-EMM-96/64 : Autor(es): Parkes, G., Everson, I., Trathan, P.N., Murphy, E.J.

8. A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment

   exploratory fishery for D. mawsoni has been operating since 1997-98. Catches have increased from ~40 t in 1997 ... -98 to nearly 1800 t in 2002-03. Although some Patagonian toothfish (D. eleginoides) are taken in the ... same season but also between successive seasons, which indicates that fish are surviving the tagging ... ), further complexity can be added to the model to explore the heterogeneity in the population using length ...

   Meeting Document : WG-FSA-SAM 03/10 : Autor(es): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)

9. Summer survey of fur seals at Prince Edward Island, southern Indian Ocean

   11.4% per year from 2001. With an estimated 810 pups, the Antarctic fur seal is still in the rapid ... December 2008. This repeats a survey conducted in December 2001 and extends the area surveyed to include ... colony among Subantarctic fur seals north of Boggel Beach remained small, with increased numbers of ... seals also had increased, with several new breeding colonies along the east coast and one at Kent Crater ...

   Meeting Document : WG-EMM-10/P15 : Autor(es): M.N. Bester, P.G. Ryan and J. Visagie

10. VARIATION IN DEMERSAL FISH SPECIES RICHNESS IN THE OCEANS SURROUNDING NEW ZEALAND: AN ANALYSIS USING BOOSTED REGRESSION TREES

    temperature was also important, with lower richness occurring in waters that were cooler than expected given ... species richness, with highest richness occurring at depths of 900 to 1000 m, and with a broad plateau of ... moderately high richness between 400 and 1100 m. Richness was higher both in waters with high surface ... constrained to reflect the known performance of trawl gear. Species richness declined with increasing cod-end ...

    Meeting Document : WS-VME-09/P04 : Autor(es): Leathwick, J.R., Elith, J., Taylor, P., Francis, M.P., Hastie, T.

Páginas