Résultats de la recherche

1. Preliminary assessment models of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season

   model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B ... in a similar, though slightly higher, estimate of initial and current biomass as the 2005 base case ... ‘all vessels’ tagging data resulted in a much more optimistic assessment, but was due to the increased ... numbers scanned, but smaller increase in the reported numbers recaptured. It is likely that this ...

   Meeting Document : WG-FSA-SAM-06/11 : Auteur(s): Dunn, A. & Hanchet, S.M.

2. RECENT TRENDS IN NUMBERS OF CROZET SHAGS BREEDING AT THE PRINCE EDWARD ISLANDS

   decreased by more than 70% from 840 pairs in 1994/95 to 220 pairs in 2003/04 and then increased to some 500 ... pairs in 2008/09. The trends are thought to have been influenced by breeding success, which averaged ... were similar trends in numbers breeding and breeding success of gentoo penguins Pygoscelis papua, which ... doubled between the summers of 2001/02 and 2008/09. In 2008/09, some 600 pairs of Crozet shags were ...

   Meeting Document : WG-EMM-10/P2 : Auteur(s): R.J.M. Crawford, P.G. Ryan, B.M. Dyer and L. Upfold

3. Information on krill in reports from the CCAMLR scheme of international observation and its utility for management

   International Observation revealed that there are a number of inconsistencies in the information being reported ... . Few reports have been submitted each year with a maximum of eight submitted in 2005. Very little ... operational procedures are reported sporadically and inconsistently. Similarly, because of the differences in ... the information reported in individual Observer’s Reports it is difficult to assess the level of by ...

   Meeting Document : WG-EMM-07/22 : Auteur(s): J. Foster, S. Nicol and S. Kawaguchi (Australia)

4. Zonal structure of zooplankton communities in the Southern Ocean south of Australia: results from a 2150 km continuous plankton recorder transect

   Circumpolar Current (SACCF), in addition to the Southern Boundary (SB) of the ACC. From 25 February to 3 March ... were measured at 1-min intervals in conjunction with CPR samples. Additional physical data for the ... combination of zonal differences in water mass structure, phytoplankton regimes, and small scale intra-zonal ... differed from other sectors of the Southern Ocean in that the northern PF, equivalent to the PF in other ...

   Meeting Document : WS-BSO-07/P6 : Auteur(s): Hunt, B.P.V. and G. Hosie

5. A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05

   rattails (Macrourus spp.) and skates in the exploratory fishery for toothfish in the Ross Sea (CCAMLR ... from all vessels in the fishery from 1997/98 to 2004/05. The major factors influencing rattail bycatch ... , 88.1I, 88.1K and 88.2E) in depths from 600 to 1000 m, and there was an order of magnitude difference in ... shown a general increasing trend since 1998/99, with a peak in 2002/03. It was not possible to reliably ...

   Meeting Document : WG-FSA-05/24 : Auteur(s): S.L. Ballara and R.L. O’Driscoll (New Zealand)

6. Risk categorisation for Macrourus whitsoni and Amblyraja georgiana in the Ross Sea

   georgiana, which are the major bycatch species in the exploratory fishery for toothfish in the Ross Sea ... from longlines whilst still in the water and release them. Macrourus whitsoni were categorized as ... overfishing, catch rates in the toothfish fishery have not declined, juveniles are not selected by the fishery ... , and comparison of longline and trawl catch rates with other Antarctic areas suggest that population in ...

   Meeting Document : WG-FSA-05/21 : Auteur(s): R.L. O’Driscoll (New Zealand)

7. Proposal for an acoustic krill biomass survey in CCAMLR Division 58.4.2

   krill in CCAMLR Division 58.4.2 (the South West Indian Ocean Sector) in January-March 2006. The survey ... limit can be established by CCAMLR. The planned survey will utilise a standardised design as adopted in ... previous B0 surveys in the CCAMLR Area and will use a similar methodology for collecting an analysing the ... Working Group in 2005. Author(s):  S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia) Title ...

   Meeting Document : WG-EMM-04/37 : Auteur(s): S. Nicol, S. Kawaguchi, T. Jarvis and T. Pauly (Australia)

8. Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica

   chick left Magnetic Island near Davis station (68°33'S, 77°54'E) in February 1995 and was ... fast-ice or in the pack-ice. Fledglings had travelled between 536 and 1931 km to the west of their ... -set to transmit intermittently for the first five months and one day in four thereafter. Adult birds ... movements over the winter months were closely related to those of sea-ice in the region. Ice motion patterns ...

   Meeting Document : WG-EMM-02/47 : Auteur(s): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)

9. Catchability of midwater trawls in relation to krill fishery

   , krill aggregations distribution in the study area is discussed. It is shown that while the trawl ... selectivity affects krill length composition in each trawl sample, the trawl catchability affects the ... in the study area. Several approaches to trawl samples processing are discussed. It is shown that the ... trawl samples weighting against the catch corrected taking in account the trawl catchability for each ...

   Meeting Document : WG-EMM-98/20 : Auteur(s): S.M. Kasatkina (Russia)

10. Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward Islands: 1997–1998

    Abstract:  Longline fishing for Patagonian toothfish Dissostichus eleginoides in the South African ... Exclusive Economic Zone around the Prince Edward Islands commenced in 1996. This paper summarises seabird ... is 13% more than the number of hooks reported set in 1996-97, but total effort probably declined ... during 1997-98 as a result of a decrease in the number of unsanctioned vessels operating in the area ...

    Meeting Document : WG-FSA-98/42 : Auteur(s): P.G. Ryan and M.G. Purves (South Africa)

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