Resultados de la búsqueda
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Acoustic and catch data collected by the fleet – relevance for feedback management
backscattering is very variable over time during the season as measured onboard a fishing vessel, but there is no ... Abstract: The Norwegian fishing vessels involved in krill fisheries are also used to carry out ... abundance surveys around the South Orkney Islands. The involved companies have accepted running acoustic ... logging also during periods of commercial fishing. In this paper we give an overview of the properties of ...
Meeting Document : WG-EMM-15/13 : Autor(es): O.R. Godø, T. Klevjer and G. Skaret (Norway)
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Observation on the interactions between marine mammals and mid-water krill trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... conducted visually with the aid of a SLR Camera and a Marine Binocular. Sea surface observation in Subarea ... 48.3 showed that the number of fur seal (Arctocephalus gazelle) around the fishing vessel increased ...
Meeting Document : WG-FSA-2019/60 : Autor(es): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, CPUE, catch ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... different assumption of the level of natural mortality (M=0.13 y-1), and the revised length-weight and ...
Meeting Document : WG-FSA-06/48 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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ADDING CATCH AT AGE AND SURVEY DATA TO THE 48.3 TOOTHFISH CASAL ASSESSMENT
sex-aggregated model, and no significant improvement to the tagging data fits. Estimates of cohort ... Abstract: The catch-at-age based CASAL model for toothfish in Subarea 48.3, which was presented ... in 2007, is developed and extended here to include survey data. Additional adjustments to the model ... suggested by WG-FSA-2007 are implemented. Fits to the survey length frequencies are good for recent surveys ...
Meeting Document : WG-SAM-09/13 : Autor(es): D.J. Agnew and M. Belchier (United Kingdom)
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Report on the CCAMLR marine debris monitoring program
annually there have been no long-term trends over the past decade. Extrapolation of these findings to areas ... entanglements and hydrocarbon soilings were received for 2014 from South Africa, the United Kingdom, and Uruguay ... . Non-fishing items such as plastics, packaging materials and wood remain the most common type of debris ... items found in beach surveys. The fishing items found were mostly from longline and trawl origins ...
Meeting Document : WG-FSA-14/68 : Autor(es): Secretariat
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REPORT OF THE UK GROUNDFISH SURVEY AT SOUTH GEORGIA (CCAMLR SUB-AREA 48.3) IN JANUARY 2009
Abstract: In January 2009 the UK undertook a bottom trawl survey of CCAMLR Sub-area 48.3 on the ... . The estimated mean biomass of Mackerel icefish (Champsocephalus gunnari) calculated using 10 strata ... , updated sea-floor areas and adjusting for the low headline height of the trawl (see CCAMLR WG-FSA (2003 ... )) was 31,753 t with a lower 1-sided CI at 18,904 t. Catches of icefish across the region were dominated ...
Meeting Document : WG-FSA-09/09 : Autor(es): M. Belchier, R.E. Mitchell, M.A. Collins, L. Kenny, M. Taylor, J. Nelson and L. Featherstone (United Kingdom)
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Final report of the CEMP Special Fund project to develop an image processing software tool (SPPYCAMS) for analysis of camera network monitoring data
Abstract: We provide a final report on the CEMP Special Fund project ‘Developing an image ... processing software tool for analysis of camera network monitoring data’. The project was initiated with ... support from the CEMP Fund in 2015/16. An earlier version of the software developed prior to receiving ... data forms for data obtained from remote camera networks. We are pleased to report that the software ...
Meeting Document : WG-EMM-2019/44 : Autor(es): C. Southwell, A. Sikka, J. Cusick, H. Achurch, A. Lashko, K. Newbery, M. Salton, J. Kool, J. Hinke, G. Watters, M. Santos, G. Milinevsky, M. Korczak-Abshire, N. Ratcliffe, P. Trathan, A. Barbosa and L. Emmerson
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Methodology for automated spatial sea ice summaries in the Southern Ocean
performance in the Southern Ocean. Sea ice can limit access to fishing grounds, for both commercial fishing ... monitoring purposes and to inform research plans by CCAMLR, no quantitative summaries relative to fishing ... sea ice concentration data in the Southern Ocean, and relate it to data on commercial fishing vessel ... operations around the Antarctic continental margin. A spatial view is used to characterise the spatial ...
Meeting Document : WG-FSA-14/54 : Autor(es): S.J. Parker, S.D. Hoyle, J.M. Fenaughty and A. Kohout (New Zealand)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
reference area sizes. Although no toothfish fishery data along the shelf area in austral autumn – winter was ... 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, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ...
Meeting Document : WG-SAM-15/05 : Autor(es): Delegation of Japan
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Further analysis of spatial patterns of benthic invertebrate habitats from fishery bycatch in the Ross Sea region
Abstract: High resolution VME taxa bycatch data (at the longline segment level) have been ... presence of VME taxa bycatch are identifiable, as are several areas of dense fishing effort with no ... , but were at larger scales. Spatial analysis of these data allows the detectability of prevalent taxa ... indicate that several VME taxa are detected between 60% and 80% of the time when present, and that ...
Meeting Document : WG-FSA-10/30 : Autor(es): S.J. Parker, R.G. Cole and S.M. Hanchet (New Zealand)