Résultats de la recherche

1. A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12

   ) in CCAMLR subarea 48.6 (South East Atlantic). This report summarises the catch, effort, timing, depth ... species  caught in the fishery over the period 2003-4 to 2011-12 are also presented..  For the Antarctic ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ... %). Unstandardized raw catch and effort data suggested that the median catch per unit of effort in Antarctic ...

   Meeting Document : WG-FSA-12/38 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)

2. Assessment models for Patagonian toothfish in Division 58.4.4, SRU C on Ob and Lena Banks for the years 1989/90 to 2012/13

   eleginoides in SSRUs C in Division 58.4.4 a & b (WG-SAM-13/21) following several advices during the last ... WG-SAM meeting as follows: 1)I included 2012 tag data (which was not used for model runs in WG-SAM-13 ... Japanese trotline system showed the captures of an adequate number of single-hooked fish in a state ... . The base model assumed the constant year class strength (YCS) and no IUU fishing occurrence in SSRU C ...

   Meeting Document : WG-FSA-13/35 : Auteur(s): K. Taki (Japan)

3. RECENT TRENDS IN NUMBERS OF FOUR SPECIES OF PENGUINS AT THE PRINCE EDWARD ISLANDS

   and southern rockhopper penguin E. chrysocome. In December 2008 it was estimated that some 65 000 ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... in numbers of king penguin chicks that survived to the end of the winter period, but there was ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...

   Meeting Document : WG-EMM-10/P1 : Auteur(s): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper

4. The effects of global climate variability in pup production of Antarctic fur seals

   range in scale from those that impact individuals to those that impact the entire food web. Climate ... -induced changes in the abundance of species in lower trophic levels can cascade up to apex predators by ... remain largely unexplored. We investigated the delectability, limits, and nonlinearity of changes in ... Antarctic fur seal pup production at South Georgia over a 20-year period in response to environmental ...

   Meeting Document : WG-EMM-06/P2 : Auteur(s): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)

5. Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011

   Abstract:  Random stratified trawl surveys were completed in September 2010 and in March to May ... 2011 on the RV Southern Champion, adding to the time series of annual surveys in Division 58.5.2 that ... commenced in 1997. An earlier survey in April 2010 was not completed, but valid hauls from this, as well as ... the September 2010 survey were used in the stock assessment as they provided valuable additional ...

   Meeting Document : WG-FSA-11/23 : Auteur(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)

6. Oxygen and carbon stable isotopes in otoliths record spatial isolation of Patagonian toothfish (Dissostichus eleginoides)

   Abstract:  Strong contrasts in ambient isotope ratios and in diet suggest stable isotopes in the ... distinguish South American-caught fish from those taken in the Antarctic. Values of δ18O and δ13C predicted ... prior evidence of population isolation. Values of δ18O in the otoliths reflected ambient values as well ... as seawater temperature: low values in Patagonian Shelf fish were consistent with exposure to ...

   Meeting Document : WG-FSA-08/P03 : Auteur(s): J.R. Ashford and C.M. Jones

7. Recent information relevant to squid resources in the Convention Area

   Abstract:  In 1995 there was increased interest in fishing for Martialia hyadesi in waters ... adjacent to the Convention Area, with a catch in excess of 12,000 tonnes. Recent improvements in processing ... techniques for this squid also enhance commercial prospects and may promote interest in fishing in Convention ... waters. Although regulations for fishing of squid in nearby waters provide a useful model framework ...

   Meeting Document : SC-CAMLR-XIV/BG/22 Rev. 1 : Auteur(s): Delegation of the United Kingdom

8. An investigation of integrated stock assessment methods for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   Abstract:  This paper follows preliminary work in 2005 in developing an integrated assessment for ... Patagonian toothfish in Division 58.5.2. It focuses on developing a “base-case” assessment, which is ... primarily based on the 2005 assessment implemented in the Generalised Yield Model (GYM) using survey data of ... show that an integrated assessment for Dissostichus eleginoides in Division 58.5.2 seems tractable. The ...

   Meeting Document : WG-FSA-SAM-06/14 : Auteur(s): A. Constable, S. Candy and I. Ball (Australia)

9. The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012

   Abstract:  The annual random stratified trawl survey at HIMI was completed in March to May of 2012 ... . A codend liner, usually in place for the entire survey, was used only in the icefish strata, Gunnari ... Ridge, Plateau Southeast and Plateau West, and in a repeat of the hauls in Ground B. Catches in this ... RSTS were generally high in comparison with previous years, with the total fish catch being twice as ...

   Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)

10. Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

    began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Division 58.4.1 is also presented ... reference area sizes. Although no toothfish fishery data along the shelf area in austral autumn – winter was ...

    Meeting Document : WG-SAM-15/05 : Auteur(s): Delegation of Japan

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