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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish in the CCAMLR subarea 48.4 was conservatively estimated using the Chapman method as 621 tonnes. At a harvest rate of γ = 0.038 this would indicate a 2015/16 yield of 24 t for the Antarctic toothfish in the region, compared to the previous 2014/15
Meeting Document : WG-FSA-15/31 : Автор(ы): N.D. Walker, V. Laptikhovsky, T. Earl and C. Darby (United Kingdom)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2014–15
Abstract: This report summarises the timing, depth, and location of fishing effort together with biological characteristics of the catch of Antarctic toothfish up to and including the 2015 season. In 2015, the Ross Sea slope SSRUs were significantly constrained by sea ice and catches were unevenly
Meeting Document : WG-FSA-15/36 : Автор(ы): K. Large, S.M. Hanchet and S. Mormede (New Zealand)
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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 Subareas 88.1 and 88.2 through the 2015 season. A total of 44 827 Antarctic toothfish have been released and 2473 recaptured, and 1191 Patagonian toothfish released and 103 recaptured since 2001. In
Meeting Document : WG-FSA-15/37 : Автор(ы): S.J. Parker and S. Mormede (New Zealand)
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Contribution to knowledge on age and growth of Antarctic toothfish (Dissostichus mawsoni) from Division 58.4.1
Abstract: A summary of progress made regarding the ageing and growth studies for Dissostichus mawsoni from Division 58.4.1 is presented. It is included the methodology used in the otolith preparation and the interpretation criteria applied on age estimation, as well as the age-length key and
Meeting Document : WG-FSA-15/06 : Автор(ы): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro (Spain)
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Initiative to monitor Antarctic toothfish movement and habitat preferences using satellite pop-up tags
Abstract: A collaborative initiative to examine Antarctic toothfish (Dissosticus mawsoni) movement and habitat preference is being developed to support the research and monitoring within the proposed Ross Sea Region Marine Protected Area. The objective is to deploy mark-report pop-off (mrPAT)
Meeting Document : WG-FSA-15/08 : Автор(ы): C. Jones (USA)
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A review of conversion factors used in CCAMLR toothfish fisheries
Abstract: The product to green-weight conversion factors used in the toothfish fishery are integral to the reporting of catches and reconciling those catches with data reported via the CDS. This paper reviews the data available on conversion factor in the C2 and Observer data as well as the
Meeting Document : WG-FSA-15/02 : Автор(ы): CCAMLR Secretariat
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The annual random stratified trawl survey in the waters of Heard Island (Division 58.5.2) to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari for 2015
Abstract: The annual random stratified trawl survey (RSTS) at HIMI was conducted during May of 2015, with the completion of 163 stations, an additional five stations compared with previous surveys. The extra five hauls were part of a redesign of the survey on the main trawl ground which consisted
Meeting Document : WG-FSA-15/11 : Автор(ы): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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Have Antarctic toothfish returned to McMurdo Sound?
Abstract: A dramatic reduction in catch rates of Antarctic toothfish in McMurdo Sound, Antarctica, has led to conclusions that the commercial bottom longline fishery for toothfish in the Ross Sea has drastically altered the toothfish population with cascading effects on the McMurdo Sound ecosystem
Meeting Document : WG-FSA-15/P01 : Автор(ы): S.J. Parker, S. Mormede, A.L. DeVries, S.M. Hanchet and R. Eisert
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A proposal for a standardised survey for Antarctic toothfish in McMurdo Sound
Abstract: We propose to implement a random, depth-stratified vertical longline survey conducted through the annual sea ice in McMurdo Sound to monitor the age composition, diet, maturity, and local abundance of Antarctic toothfish. A pilot season was carried out in 2014, where sampling gear and
Meeting Document : WG-FSA-15/33 : Автор(ы): S.J. Parker, S.M. Hanchet and S. Mormede (New Zealand)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region for the years 1997–98 to 2014–15
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region (Subareas 88.1 and SSRUs 88.2A–B), using catch, catch-at-age, and tag-recapture data from 1997–98 to 2014–15 and including the
Meeting Document : WG-FSA-15/38 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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