Search results
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the second three ... WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible under the ... Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ...
Meeting Document : WG-FSA-15/17 : Author(s): Delegation of Japan
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Report of biological observations carried out on board the krill fishing vessel More Sodruzhestva in April to August 1991
dominant in catches taken in April/May in the north-west of Subarea 48.2. Krill of modal sizes 31 to 32 mm ... and 35 to 36 mm made up the bulk of catches in the south-east of the subarea. No by-catch of juvenile ... fish was observed in Subarea 48.2. Krill of the following three modal groups was dominant in Subarea ... these subareas during the period 17 to 23 May 1991. Sightings of marine mammals and birds in the ...
Meeting Document : WG-KRILL-92/06 : Author(s): V.I. Latogursky (Russia)
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Towards the development of a stock assessment for Patagonian toothfish in Division 58.4.4, SSRU C on Ob and Lena Banks
455 tonnes, and current biomass was 1 275 tonnes (87.6 % of B 0). An additional uncertainty in the ... Abstract: Following the advice from the CCAMLR Working Group in WG-SAM in 2012, a preliminary ... assessment of stock status of D. eleginoides in SSRU C in Ob-Lena Banks was made using a CASAL catch-at ... -length model. In this preliminary assessment, the model was started in 1990 and catch, proportions at ...
Meeting Document : WG-FSA-12/59 : Author(s): K. Taki (Japan)
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
Abstract: Descriptive analyses of the toothfish tagging programme carried out in Subareas 88.1 ... described in this paper for the first time. Overall, a reported total of 12 177 Antarctic toothfish have ... . The number of tags recaptured in the Ross Sea in 2007 by New Zealand vessels was the highest annual ... recapture to date and double the number caught in 2006, although the nature of these recaptures suggests ...
Meeting Document : WG-SAM-07/5 : Author(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Managing ecosystem uncertainty: critical habitat and dietary overlap of top-predators in the Ross Sea
managers of the close spatial and temporal ecological overlaps among top predators in the Ross Sea Shelf ... well within range. In the RSShE, the main prey species eaten by most of the listed predators is the ... Antarctic silverfish, which is a major predator of ice krill. Based on frequency of occurrence in the diet ... . Title: Managing ecosystem uncertainty: critical habitat and dietary overlap of top-predators in the ...
Meeting Document : WG-EMM-06/29 : Author(s): Testa, J.W., Stewart, B.S., Olmastroni, S., Lyver, P., Karl, B., Eastman, J., Barton, K., Ballard, G., Toniolo, V., Wilson, P., Ainley, D.
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2009/10
Subarea 88.1 and for 9 years in Subarea 88.2. This report summarises the timing, depth, and location of ... 2009–10. During the 2009–10 fishing year most of the catch in Subarea 88.1 came from the slope SSRUs ... considerably over time in each of the fisheries showing no trend in the main fisheries in Subarea 88.1 and SSRU ... small fish. A major source of uncertainty in the current stock assessment concerns the recruitment ...
Meeting Document : WG-FSA-10/23 : Author(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)
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Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
predation release hypothesis. In particular, the examination of 422 Antarctic toothfish stomachs showed that ... the amount of silverfish consumed annually by Adélie penguins in this region. This result was ... increases in the number of Adélie penguins breeding in the southern Ross Sea. Mixed trophic impact (MTI ... changes in toothfish biomass and changes to the biomasses of silverfish and Adélie penguins. Essentially ...
Meeting Document : WG-EMM-15/53 : Author(s): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
Abstract: The descriptive analyses of the toothfish tagging programme carried out in Subareas ... , and 911 Patagonian toothfish released and 43 recaptured since 2001. The number of tags recaptured in ... number caught in 2006, although the nature of these recaptures suggests that assumptions of homogeneous ... provides an update of the preliminary tag-release and tag-recapture data that were presented at the July ...
Meeting Document : WG-FSA-07/40 : Author(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
/ fisheries management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the ... at the WG-FSA in 2013 in order to maximize the expectation of tag-recapture to the extent possible ... for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2 Approval ... Abstract: The current season (2014/15) is the final one of the first three-season research which ...
Meeting Document : WG-FSA-15/18 : Author(s): Delegation of Japan
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Indexing maturation of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region
and 88.2 have provided more than a decade of observations to aid in understanding the life history and ... the slope or return to the slope in early spring. The absence of high condition fish in the north ... Abstract: The longline fisheries for Antarctic toothfish (Dissostichus mawsoni) in subareas 88.1 ... ecology of toothfish. Updated spawning ogives for males and females support the currently used values ...
Meeting Document : WG-FSA-12/40 : Author(s): S. Parker and P. Marriott (New Zealand)