Search results
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PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4
Abstract: 1. A three-year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ... those experienced in the North of 48.4. 196 Amblyraja georgiana and 1 Bathyraja eatonii were tagged and ... experiment in the South of Subarea 48.4 in 2009/10 with a combined catch limit of 75 tonnes for Dissostichus ...
Meeting Document : WG-FSA-09/18 : Author(s): J. Roberts and D.J. Agnew (United Kingdom)
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Mesozooplankton distribution and community structure in the Pacific and Atlantic sectors of the Southern Ocean during austral summer 2017/18: a pilot study conducted from Ukrainian longliners
Abstract: Preliminary results of the pilot study of the mesozooplankton in the region between the ... were collected in the top 100 m water layer using vertical tows of the 0.1 m-2 Juday net from four ... oceanographic surveys. The potential of such surveys are enormous in both providing invaluable information ... Ocean, particularly in light of recent modelling initiatives of the whole Antarctic system undertaken by ...
Meeting Document : WG-FSA-18/19 : Author(s): E.A. Pakhomov, L.K. Pshenichnov, A. Krot, V. Paramonov, I. Slypkо and P. Zabroda
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Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem
Abstract: The history of human harvests of seals, whales, fish and krill in the Antarctic is ... ) species. The model commences in 1780 (the onset of fur seal harvests) and distinguishes the Atlantic ... /Indian and Pacific sectors in view of the much larger past harvests in former. A reference case and five ... Africa) Title: Modelling the predator–prey interactions of krill, baleen whales and seals in the ...
Meeting Document : WG-EMM-05/34 : Author(s): M. Mori and D.S. Butterworth (South Africa)
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The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR
assessment and management of the fishery. This independent estimation of the total catch in the fishery ... reviewers watching the video footage. No significant differences were found in the number of all species of ... Abstract: Sampling methods to determine the composition and nature of the catch of the longlining ... CCAMLR observers deployed on the fishing fleet. The collection of this data is important for the ...
Meeting Document : WG-FSA-14/27 : Author(s): R.A. Benedet (United Kingdom)
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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)