Search results
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An update of the ageing program for Patagonian toothfish (Dissostichus eleginoides) at the Australian Antarctic Division, including a summary of new data available for the Integrated Stock Assessment for the Heard Island and the McDonald Islands fishery (Division 58.5.2)
ageing program for the purposes of routine processing of Patagonian toothfish (Dissostichus eleginoides ... ) otoliths from the Heard Island and McDonald Islands fishery. With the reinitiation of this program a number ... of methodological refinements have been made to those outlined by Nowara et al. (2009), particularly ... in relation to the laboratory processing of otoliths and quality control in the assignment of fish ...
Meeting Document : WG-FSA-14/45 : Author(s): B.M. Farmer, E.J. Woodcock and D.C. Welsford (Australia)
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In situ observations of the scavenging fauna of the South Georgia slope
Abstract: The scavenging fauna of the South Georgia slope was investigated from 41 baited camera ... deployment at depths of 471-2235 m during research cruises in September 1997 and January 2000 and 2003. The ... absent from depths greater than 1800 m and temperatures less than 1.3 C. The arrival rate of crabs at the ... bait can be used to estimate density, but the behaviour of toothfish precludes this approach to ...
Meeting Document : WG-FSA-03/76 : Author(s): M.A. Collins, I. Everson, R. Patterson, P.M. Bagley, C. Yau, M. Belchier and S. Hawkins (United Kingdom)
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Ukraine proposes to continue a scientific survey of Dissostichus spp. by bottom longline in the eastern part of Subarea 48.1 in a season 2019/20
Abstract: Ukraine proposes to continue a scientific survey of Dissostichus spp. by bottom ... longline in the eastern part of Subarea 48.1 in a season 2019-2020. Author(s): Delegation of Ukraine Title ... : Ukraine proposes to continue a scientific survey of Dissostichus spp. by bottom longline in the eastern ... part of Subarea 48.1 in a season 2019/20 Microsoft Word File: sam-2019-28.docx Approval: Approved ...
Meeting Document : WG-SAM-2019/28 : Author(s): Delegation of Ukraine
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Use of cameras and sensors to monitor the behaviour and benthic impact of longline gears
Abstract: In order to investigate and monitor the ecological impact of longlines on the benthic ... environment and subsequently develop strategies for its management, the UK is conducting a series of research ... projects studying the potential impact of longline fishing gear on benthic habitats. The research has been ... structured around three approaches, each deploying a different format of benthic camera system and movement ...
Meeting Document : WG-FSA-2019/24 : Author(s): C. Darby
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Results and standing stock biomass estimates of finfish from the 2001 US AMLR bottom trawl survey of the South Shetland Islands (Subarea 48.1)
bottom trawl survey in March, 2001 of the South Shetland Islands. Information on species composition ... , size composition, spatial distribution, and dietary patterns are presented. Estimates of total stock ... % confidence levels from the 2001 surveys were considerably decreased. The results indicate that stocks of N ... . rossii have not recovered even after commercial fishing has ceased for 20 years. The overall abundance of ...
Meeting Document : WG-FSA-01/33 Rev. 1 : Author(s): C.D. Jones, K.-H. Kock, D. Ramm, J. Ashford, S. Wilhelms, T. Near, N. Gong and H. Flores
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Estimation of the green weight of krill caught
to directly estimate the green weight of krill caught since 2012/13. The estimation methods were ... revised at WG-EMM-13 and published in Conservation Measure 21-03 Annex B. Estimates of green weight and ... estimation of the green weight of krill caught: codend volume, holding tank volume, flow meter, flow scale ... , plate tray and meal conversion. The submission of green weight estimates and parameter values continues ...
Meeting Document : WG-EMM-14/29 : Author(s): Secretariat
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Heart rate and behaviour of fur seals: implications for measurement of field energetics
191 days of recording. Heart rate averaged 108.7 ± 17.7 beats/min (SD) but varied from 83 to 145 beats ... activity patterns. Heart rate was also correlated with behavior over time lags of several hours. There was ... rate and behaviour of fur seals: implications for measurement of field energetics Approval: Approved ...
Meeting Document : WG-EMM-99/36 : Author(s): I.L. Boyd, R.M. Bevan, A.J. Woakes and P.J. Butler (United Kingdom)
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Distribution of phytoplankton in the mixed layer: implication of krill abundance
Abstract: The vertical trajectory of phytoplankton in the Antarctic ocean is modelled as a random ... mixing layer is shallow, but diffusion is large enough to effect the vertical distribution of ... phytoplankton in the upper ocean. Author(s): United States of America Title: Distribution of phytoplankton in ... the mixed layer: implication of krill abundance Approval: Approved ...
Meeting Document : SC-CAMLR-VII/BG/26 : Author(s): United States of America
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An outline of narrowband echosounder survey methods to estimate biomass of Antarctic krill in CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
Abstract: Japanese multidisciplinary survey with a focus on biomass estimation of Antarctic krill ... CCAMLR standard will be employed in the analysis but utility of 70 kHz data will also be investigated ... . Measurements of acoustic impedances (mass density and sound-speed contrasts) of krill will also be conducted ... during the survey. Currently, the compatibility of the output data between EK60 and EK80 has been ...
Meeting Document : SG-ASAM-18/02 : Author(s): K. Abe, K. Amakasu, R. Matsukura, T. Mukai and H. Murase
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Updated assessment of Patagonian toothfish (Dissostichus eleginoides) in the vicinity of Crozet Islands (Subarea 58.6)
of input data from the more recent years (up to 2015/16 season) and a reassessment of stocks taking ... into account the previous remarks of the WG-FSA meetings. Author(s): R. Sinegre and G. Duhamel Title ... : Updated assessment of Patagonian toothfish (Dissostichus eleginoides) in the vicinity of Crozet Islands ...
Meeting Document : WG-FSA-16/52 : Author(s): R. Sinegre and G. Duhamel