Résultats de la recherche

1. Performance and geometry of the FP-120 trawl used during the UK 1993/94 fish stock assessment survey around South Georgia, Subarea 48.3

   Abstract:  Methods for the calculation of the horizontal opening (swept area) of a bottom trawl ... are discussed. Details of the Scanmar trawl monitoring equipment used for making in situ measurements ... of horizontal opening and headline height of the FP-1 20 trawl during the 1993/94 UK fish stock ... the calculation of horizontal opening from other, more easily obtained measurements, such as tow speed ...

   Meeting Document : WG-FSA-94/23 : Auteur(s): G. Pilling and G. Parkes (United Kingdom)

2. Abundance and trends in the breeding population of Adélie penguins (Pygoscelis adeliae) in the western Ross Sea

   Ecosystem Monitoring Program (CEMP) to detect effects of anthropogenic activities (e.g. commercial fishing ... ) on the Antarctic marine ecosystem.  The goal of this study was to assess annual variation and trends ... in the number of Adélie penguin breeding pairs at colonies in the western Ross Sea.  High angle ... oblique aerial photographic surveys of colonies were acquired for the breeding seasons between 1981 and ...

   Meeting Document : WG-EMM-13/30 : Auteur(s): P. O’B. Lyver, M. Barron, K.J. Barton, S. Gordon (New Zealand), D. Ainley, A. Pollard (USA), P.R. Wilson and M.H. Pinkerton (New Zealand)

3. Revised research plan for the 2013/14 exploratory longline fishery of Dissostichus spp. in Division 58.4.3a

   in the last WG-SAM meeting. We tentatively recalculated a sample size of Dissostichus spp in each ... block in such a way that the numbers of tag recoveries in the 2016 season shows an approximately 0.3 of ... coefficient variance of biomass estimate from the bootstrapped procedure, under the condition that the ... block, in order to promote successful stock assessment. The separation rule was one of the major ...

   Meeting Document : WG-FSA-13/40 : Auteur(s): Delegation of Japan

4. A review of by-catch in CCAMLR exploratory toothfish fisheries

   Abstract:  Mitigating the adverse affects of commercial fishing on the environment is an integral ... responsibility of fisheries globally.  Efforts to reduce bycatch, to exploit previously unfavourable species and ... Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is widely recognized for its ... thorough and effective management of Southern Ocean toothfish fisheries, especially in eliminating ...

   Meeting Document : WG-FSA-14/16 : Auteur(s): E. McClure, K. Reid (Secretariat)

5. Multiyear changes in distribution and abundance of Salpa thompsoni in the Western Antarctic Peninsula region

   characterized by a circumpolar distribution and its appearance is clearly associated with the occurrence of the ... Antarctic Circumpolar Current (ACC). This area of the Southern Ocean is characterized by a relatively low ... productivity and high water temperature. In recent years the expansion of distribution range of this ... invertebrate species has been observed. This process may be a result of the ACC southward movement, which is ...

   Meeting Document : WG-EMM-16/75 : Auteur(s): A. Panasiuk, A. Słomska, J. Wawrzynek, M. Konik and A. Weydmann

6. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man made debris at Bird Island, South Georgia, during the 2006 winter and 2006/07 breeding season

   Abstract:  Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... total of 41 winter entanglements were observed in the reporting period compared to 2 observed in the ... 1992 when 97 entanglements where reported). The number of entanglements seen during the summer period ... was 17, an increase of 112.5% over the previous summer, and the highest since 2001/02. During the ...

   Meeting Document : SC-CAMLR-XXVI/BG/17 : Auteur(s): Delegation of the United Kingdom

7. A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011

   Abstract:  Acoustically based estimates of Antarctic krill (Euphausia superba) biomass, and net ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . The time series of acoustic biomass indicate that krill have varied by more than an order of magnitude ... based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ...

   Meeting Document : WG-EMM-11/26 : Auteur(s): A. Cossio, C. Reiss and R. Driscoll (USA)

8. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2004/05

   eight years in Subarea 88.1 and for four years in Subarea 88.2 with a large amount of data collected on ... toothfish and the associated bycatch. The 2005 D. mawsoni catch was the highest on record with a total of ... 3477 t against a catch limit of 3625 t. The catch limit was almost reached in Subarea 88.1 and exceeded ... were rattails, which contributed 12% of the catch, and skates which contributed to about 2% of the ...

   Meeting Document : WG-FSA-05/29 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and A. Dunn (New Zealand)

9. Population of macaroni penguins Eudyptes chrysolophus at Marion Island, 1994/95 to 2002/03, with information on breeding and diet

   Abstract:  There is indication that numbers of macaroni penguins Eudyptes chrysolophus at ... subantarctic Marion Island have decreased since the early 1980s. Estimates of the population at the island fell ... large colonies, at Bullard Beach and Kildalkey Bay, account for about 85% of the overall population. At ... mean density of nests decreased. However, error on estimates of abundance at these colonies precludes ...

   Meeting Document : WG-EMM-03/15 : Auteur(s): R.J.M. Crawford, J. Cooper and B.M. Dyer (South Africa)

10. Ideal survey patterns: an example of using a simulated world

    Abstract:  This paper considers a class of survey patterns for a toothfish long lining fishery ... criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... explicit Monte Carlo model and the use of such models to study these issues is considered along with their ... ability to answer such questions as: How well do different survey restrictions capture information of ...

    Meeting Document : WG-FSA-01/75 : Auteur(s): I.R. Ball and A.J. Constable (Australia)

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