Search results
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Adélie penguin population change in the pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current
Abstract: One of the longest continuing data sets involving a marine organism in the Antarctic is ... , and inversely, by the extent of sea-ice in the study area 5 winters earlier, and in some way related ... strong correlations to ice conditions in the eastern portion of the study area (174 to 130°W), and ... model indicated that variation in survival of juveniles and subadults might account for the observed ...
Meeting Document : WG-EMM-01/23 : Author(s): P.R. Wilson (New Zealand), D.G. Ainley, N. Nur, S.S. Jacobs (USA), K.J. Barton (New Zealand), G. Ballard and J.C. Comiso (USA)
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Trends of the Dissostichus eleginoides stock using the sequential population analysis (SPA) model in Subarea 48.3: 1992-1996
calculated by the WG-FSA in 1995 when F2/3 was applied, which allowed height level of spawning biomass per ... last year (1996) in relation to the previous ones. This result supports the idea that the use of the ... Abstract: This paper presents a model of Sequential Population Analysis (SPA), based in catch at ... age data, for the evaluation of the state of the stock of Dissostichus eleginoides from the area 48.3 ...
Meeting Document : SC-CAMLR-XV/BG/14 : Author(s): Delegation of Chile
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Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2014–15
Abstract: We provide an update of the descriptive analyses of the toothfish tagging programme in ... in 2015, close to the recent average. SSRU 88.2H showed a similar annual number of tag returns ... Subareas 88.1 and 88.2 through the 2015 season. A total of 44 827 Antarctic toothfish have been released ... years, most vessels have achieved or exceeded the required tagging rate of one toothfish per tonne of ...
Meeting Document : WG-FSA-15/37 : Author(s): S.J. Parker and S. Mormede (New Zealand)
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A summary of scientific observer deployments and data collection in the krill fishery during the 2011, 2012 and 2013 seasons
Abstract: The level of observer coverage in the krill fishery and the scientific sampling ... undertaken are summarised. During 2012 all 12 of the vessels that participated in the krill fishery carried ... occurred in subarea 48.1 during 2012 when fishing occurred both in Bransfield Strait and to the west of ... observers for some or all of their fishing operations. From a total of 860 vessel days of fishing in 2012 ...
Meeting Document : WG-EMM-13/38 : Author(s): CCAMLR Secretariat
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Preliminary assessment models of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
in a similar, though slightly higher, estimate of initial and current biomass as the 2005 base case ... . The assessment using the revised biological parameters was slightly more optimistic in terms of B0 ... than the 2006 reference case, with the use of the lower M (0.13 y-1 rather than 0.15 y-1) resulting in ... a more optimistic estimate of B0. However, as the changes in growth, length-weight, and M all imply ...
Meeting Document : WG-FSA-SAM-06/11 : Author(s): Dunn, A. & Hanchet, S.M.
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Analysis of the stomach content in the blue-eyed shag Phalacrocorax atriceps bransfieldensis at Nelson Island, South Shetland Islands
at Nelson Island, South Shetland Islands, in January 1994. The analysis of the diet showed that fish ... . Coria, R. Casaux, M. Favero and P. Silva (Argentina) Title: Analysis of the stomach content in the blue ... Abstract: Forty stomach contents of the blue eyed shag Phalacrocorax bransfieldensis were sampled ... , predominated in frequency (58%) and in weight (65%), whereas Nototheniops nudifrons was the most important by ...
Meeting Document : WG-CEMP-94/31 : Author(s): N. Coria, R. Casaux, M. Favero and P. Silva (Argentina)
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2017/18
maximum of 20% change in the catch limit from 200 t. Research block 882_2: 240 t based on a one-year ... allowing a maximum of 20% change in the catch limit from 200 t. Research block 882_4: 214 t based on CPUE ... by seabed area and allowing a maximum of 20% change in the catch limit from 200 t. We note that ... Abstract: The Amundsen Sea region toothfish fishery has been operating since 2003. In 2015, a ...
Meeting Document : WG-FSA-18/36 : Author(s): S. Mormede and S. Parker
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Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2018/19
-year Chapman estimates and allowing a maximum of 20% in the catch limit for 88.2H and research block ... 882_2 are: 882H: 240 t catch and allowing a maximum of 20% change in the catch limit from 200 t ... . Research block 882_2: 288 t catch and allowing a maximum of 20% change in the catch limit from 240 t. We ... Title: Summary of the toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H ...
Meeting Document : WG-FSA-2019/12 : Author(s): J. Devine and S. Parker
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TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
toothfish in the Ross Sea. One of them, the CASAL model, (Dunn & Hanchet, 2007; Bull et al., 2007) is ... data (Dunn & Hanchet, 2007), especially strong being the influence of fish tagged in 2006 and ... : TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA Approval: Approved ... available sources of information incorporated into the model. The second one, the TISVPA model (Vasilyev ...
Meeting Document : WG-SAM-08/08 : Author(s): D. Vasilyev and K. Shust (Russia)
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TEMPORAL CLARIFICATION OF THE TRANSITION FROM BLUE PHASE FINGERLING TO EARLY JUVENILE BROWN PHASE IN NOTOTHENIA ROSSII FROM THE SOUTH SHETLAND ISLANDS
rossii caught in Potter Cove, South Shetland Islands, in summer of years 2003-2006 and 2008. The sample ... the interpretation of the rings, particularly in the central area of the scale. To clarify two issues ... of controversy in the literature: 1) we believe that the duration of the pelagic fingerling stage at ... OF THE TRANSITION FROM BLUE PHASE FINGERLING TO EARLY JUVENILE BROWN PHASE IN NOTOTHENIA ROSSII FROM ...
Meeting Document : WG-FSA-09/32 : Author(s): E. Barrera-Oro, E. Moreira, N. Alescio and E. Marschoff (Argentina)