Search results
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Approaches to monitoring and assessing the abundance of rattails (Macrourus spp.) and skates in the Ross Sea
Abstract: This report presents results from a desktop study to consider approaches to monitoring ... , and acoustic surveys. We recommend that a random bottom trawl survey would be the best approach ... range 600–1500 m to obtain a precise estimate of bycatch abundance in the area of highest densities ... (SSRUs 881E, G, H, I, J, and K). A trawl survey could also be used in conjunction with other methods of ...
Meeting Document : WG-FSA-05/22 : Author(s): R.L. O’Driscoll, S.M. Hanchet and B.A. Wood (New Zealand)
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BEACH DEBRIS SURVEY SIGNY ISLAND, SOUTH ORKNEY ISLANDS 1996/97
classified by type, material, weight and size categories. Logistical difficulties prevented a January survey ... from being carried out at Cummings Cove. A total of 34 items weighing 1.61 kg were collected at ... Cummings Cove, 18 items weighing 1.42 kg were found at Foca Cove and 6 items with a total weight of 0.68 kg ... follows a continuing downward trend since 1993/94. The proportion of plastic items found remained high ...
Meeting Document : CCAMLR-XVI/BG/6 : Author(s): Delegation of the United Kingdom
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Lessons from CCAMLR on the implementation of the ecosystem approach to managing fisheries
widely recognised as a leading international organisation in developing best-practice in the ecosystem ... approach to managing fisheries. CCAMLR provides a useful case study for examining the impediments to ... convention rather than having to make a transition from single-species management to an ecosystem approach ... species are not disproportionately affected as a result of spatial and/or temporal dependencies of ...
Meeting Document : WG-EMM-12/P06 : Author(s): A.J. Constable
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Progress report on the research longline fishery of Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13
they caught a total of 162.8 tonnes of Dissostichus spp. out of the 200 tonne catch limit (Table 2 ... ). They have taken only 65.2 tonnes of Dissostichus spp. from the northern section to date. A total of 1 ... tagging rate of 5 fish per ton. A total of 213 D. eleginoides and 5 530 D. mawsoni) were measured. The ... vessel combined tag overlap statistic was in excess of 70% in all Research Blocks. A total of 13 ...
Meeting Document : WG-SAM-13/05 : Author(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Draft MPA Report for the South Orkney Islands Southern Shelf (MPA Planning Domain 1, Subarea 48.2)
towards the conservation of biodiversity in Subarea 48.2, and to the development of a representative ... system of protected areas across the Convention Area. In 2013, a preliminary draft MPA Report was ... Report contains: a description of the region (including evidence used to designate the MPA); details of ... the MPA; requirements for new research and monitoring; a summary of activities undertaken within the ...
Meeting Document : WG-EMM-14/25 : Author(s): Delegation of the European Union
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On biogeographic patterns of benthic invertebrate mega fauna on shelf areas of the Southern Ocean Atlantic sector
communities incorporates a range of data on physical, environmental and biological properties, as well as the ... catches in order to identify and characterise such communities for comparative purposes at a fine spatial ... , reveals a two-layered pattern based on the standardised total biomass data and the composition of phyla ... physical oceanographic data for the region, a pattern of shelf faunal zonation emerges. Patterns of benthic ...
Meeting Document : WS-BSO-07/10 : Author(s): S.J. Lockhart and C.D. Jones (USA)
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Measurement of ocean temperatures using instruments carried by Antarctic fur seals
coastal waters around South Georgia. There was a significant correlation between temperature measurements ... made using a towed undulating oceanographic recorder (UOR) and concurrent measurements from time-depth ... longitude), and at a vertical scale of 10 m. However, there was no significant correlation between ... warmer surface water in a region in which more run-off was to be expected. The study also showed that ...
Meeting Document : WG-EMM-01/56 : Author(s): I.L. Boyd, E.J. Hawker, M.A. Brandon and I.J. Staniland (United Kingdom)
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Beach debris survey Signy Island, South Orkney Islands 1997/98
was counted, measured and classified by type, material, weight and size categories. A total of 29 ... and four items with a total weight of 1.7 kg were found at Starfish Cove. The total number of marine ... follows a continuing downward trend since 1993/94. The total weight of debris was 400/0 higher compared ... at Signy Island in 1997/98 continues a promising trend. However the considerable amount of plastic ...
Meeting Document : CCAMLR-XVII/BG/20 : Author(s): Delegation of the United Kingdom
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–11
reference model using the selected trips tag data gave a similar, but slightly higher estimate of initial ... biomass than the 2009 base case. Retrospective analysis suggests that this is partly as a result of the ... increased number of vessels in selected data set and partly as a result of the 2010 and 2011 observations ... 78.6–81.3).The estimated yield, using the CCAMLR decision rules, was 3282 t Author(s): S. Mormede, A ...
Meeting Document : WG-FSA-11/42 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN SUBAREA 88.2 SSRU E FOR THE YEARS 2002/03 TO 2008/09
model resulted in a higher estimate of initial biomass than the same model for 2006, but the estimated ... initial biomass was very imprecise. The selected trips data set resulted in a more precise estimate of ... from different years. The use of the selected trips with the revised maturity ogive resulted in a ... selectivity equal to the current fishing selectivity. Author(s): A. Dunn and S.M. Hanchet (New Zealand) Title ...
Meeting Document : WG-FSA-09/41 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)