Search results
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Bias in acoustic biomass estimates of Euphausia superba Dana to diel vertical migration
Abstract: The diel vertical migration of Antarctic krill (Euphausia superba) can greatly bias the ... results of qualitative and quantitative hydroacoustic surveys which are conducted with a down-looking ... sonar and independent of the time of day. To demonstrate and quantify these negative biases on both the ... estimates of biomass distribution and abundance, a time-depth-density analysis was performed. Data for this ...
Meeting Document : WG-KRILL-93/48 : Author(s): D.A. Demer and R.P. Hewitt (USA)
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Analysis of catch and effort data in SSRUs 882A–B North from the 2015 fishing season including comparisons with data from exploratory fisheries and closed areas
Abstract: At the 2015 meetings of WG-FSA and the Scientific Committee, the UK, New Zealand and ... Norway noted that they would perform an analysis of CPUE variability, haul duration and haul speed from ... the 2015 survey of the northern region of SSRUs 88.2A–B, including a comparison with all exploratory ... within the range of that observed in other exploratory fisheries and similar to those typically observed ...
Meeting Document : WG-SAM-16/16 Rev. 1 : Author(s): K. Large, A. Dunn, S.J. Parker, T. Earl, C. Darby, M. Söffker and O.R. Godø
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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan, South Africa and Spain
integrated assessments of the D.mawsoni stock in this subarea. The Working Group recommended that Spain ... should coordinate its research efforts with Japan and South Africa and encouraged the submission of a ... for 2018/19 season is presented to ensure continuity of previous research activities. Data and ... investigations about the population structure and various demographic parameters of Antarctic toothfish ...
Meeting Document : WG-FSA-18/34 : Author(s): Delegations of Japan, South Africa and Spain
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REPORTS UNDER ARTICLES X, XXI AND XXII OF THE CONVENTION AND CONSERVATION MEASURES 10-06 AND 10-07 – IUU FISHING AND IUU VESSEL LISTS 2009/10
Abstract: REPORTS UNDER ARTICLES X, XXI AND XXII OF THE CONVENTION AND CONSERVATION MEASURES 10 ... Vessel Lists 2010 1. Comm Circ 10/68 of 1 July 2010 advised Members that no reports had been received in ... respect of vessels which could be included on a Draft Contracting or non-Contracting Party IUU Vessel ... Lists for 2010. No additional reports have been received since that time. Therefore, at the time of ...
Meeting Document : CCAMLR-XXIX/16 : Author(s): Secretariat
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Proposal to strengthen monitoring and control of transhipments
gaps in the monitoring of transhipments. Currently, most of the transhipments in the Convention Area ... occur between vessels licensed to fish in the Convention Area and vessels of Non-Contracting parties ... (NCPs). The proposed amendments establish a CCAMLR Record of Carrier Vessels, which may include NCP ... vessel that is not authorised under Conservation Measure 10-02 or included on the CCAMLR Record of ...
Meeting Document : CCAMLR-XXXV/24 : Author(s): Delegations of Australia and the USA
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Exploitation of mesoscale oceanographic features by grey-headed albatross Thalassarche chrysostoma in the southern Indian Ocean
southern Indian Ocean. During incubation, most birds foraged to the north of the island, at the edges of ... . In contrast, during chick-rearing all tracked birds foraged to the southwest of the island, at the ... edges of anomalies along the South-West Indian Ridge. Previous work in this area has shown that these ... Indian Ridge. Diet samples taken during the chick-rearing period showed a predominance of fresh specimens ...
Meeting Document : WG-FSA-01/12 : Author(s): D.C. Nel, J.R.E. Lutjeharms, E.A. Pakhomov, I.J. Ansorge, P.G. Ryan and N.T.W. Klages (South Africa)
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Updated impact assessment framework to estimate the cumulative footprint and impact on VME taxa of bottom longline fisheries in the CCAMLR Area
estimate the likely impacts of bottom longline fishing on Vulnerable Marine Ecosystems (VMEs), as required ... by Conservation Measure 22-06. The most recent iteration of the impact assessment (Sharp 2010) was ... assessments for all gear types combined at the scale of entire fisheries. Both WG-SAM and WG-EMM gave specific ... account of the specific recommendations of WG-SAM and WG-EMM 2010 and incorporating new information ...
Meeting Document : WG-FSA-10/31 : Author(s): B.R. Sharp (New Zealand)
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Revised reports on abundance and biological information of toothfish in Division 58.4.4 a & b by Shinsei maru No. 3 in 2012/13 season
Abstract: A survey was conducted to collect data of stock status and various biological ... information of toothfish in SSRUs C and D of Division 58.4.4a & b (Ob Lena Banks) from April 25 to May 22 ... , 2013. A total of 64 research hauls using normal trotline system were made in SSRUs C and D. Total catch ... of Dissostichus eleginoides (excluding those tagged and released) was 31.1 tonnes in the survey area ...
Meeting Document : WG-FSA-13/34 : Author(s): K. Taki, T. Ichii, T. Iwami and M. Kiyota (Japan)
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THE STRUCTURE AND FUNCTIONING OF MARINE ECOSYSTEM IN ARGENTINE ISLANDS WATERS
structure of marine ecosystem in a poorly investigated coastal area of Argentine Island Archipelago The ... structure and functioning of the local biota has a specific response of environmentally different involved ... elements to a series of limiting factors. Mass phyto- and zoobenthos and macro plankton species accumulate ... toxic heavy metals. The pollution inhibits normal reproduction of Antarctic krill, the population ...
Meeting Document : WG-EMM-11/P5 : Author(s): E.Z. Samyshev
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The dynamic of krill fishery and the environment in the Antarctic Peninsula Subarea (48.1)
Abstract: The dynamic of krill fishery in the Subarea 48.1 and its relation to the environment ... variability was analyzed. It was revealed that the dynamic of ААО indices (Antarctic Oscillation Index) used ... as an indicator of the inter-annual and long-period fluctuations of hydrometeorological conditions at ... high latitudes of the Southern Hemisphere was traced through the climatic changes of the environmental ...
Meeting Document : WG-EMM-13/32 : Author(s): S.M. Kasatkina, V.N. Shnar and S.N. Burikin (Russia)