Search results
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Recommendation for an explicit limit reference point for the mackerel icefish (Champsocephalus gunnari) fishery in CCAMLR Statistical Division 58.5.2
Abstract: Large fluctuations in abundance are a persistent feature of the populations of mackerel ... . Australia recommends the development of a limit reference point, such that the commercial catch limit for ... completed. In years with a zero commercial catch limit, a combined bycatch and research catch limit of 30 ... tonnes would allow the continued monitoring of the stock through annual trawl surveys. Australia ...
Meeting Document : WG-FSA-11/34 : Author(s): Delegation of Australia
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ADULT ANTARCTIC KRILL FEEDING AT ABYSSAL DEPTHS
bulk of the population of postlarval krill is typically confined to the top 150 m of the water column ... . Here, we report for the first time the existence of significant numbers of Antarctic krill feeding ... operated vehicle Isis in the austral summer of 2006/07 have revealed the presence of adult krill (Euphausia ... locations there were exuviae (cast molts). These observations revise significantly our understanding of the ...
Meeting Document : WG-EMM-08/P01 : Author(s): A. Clarke and P.A. Tyler
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Using compact video camera technology for rapid deep-sea benthic habitat assessment
Ocean benthos, has a wider application in deep-sea marine research. The use of the system as a drop ... voyage on the shelf-break of East Antarctica, greatly improved the efficiency of selection of sites for ... quantitative sampling. The system is also promoted for estimates of krill biomass, swarm dynamics and ... reproduction, and ground-truthing remote data for habitat mapping. The main advantages of using this system as ...
Meeting Document : WG-EMM-10/24 : Author(s): G.P. Ewing, R. Kilpatrick, A.J. Constable and D.C. Welsford (Australia)
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Hydroacoustic data obtained around Elephant Island and South Orkney Islands during austral summer 2018
Abstract: This document presents the analysis of acoustic data obtained during the austral summer ... of 2018 as a complement to finfish research in Subareas 48.1 and 48.2 using bottom trawling nets. The ... frequency of 38 kHz and a SIMRAD ES70 fishing echosounder equipped with a 120 kHz frequency transducer. The ... geographical distribution of krill concentrations and the presence of fish shoals are described in an area of ...
Meeting Document : WG-FSA-18/05 : Author(s): N.A. Alegría and P.M. Arana
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Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
Abstract: Antarctic krill (Euphausia superba) aggregate in various ways depending on a range of ... such as shelf edges and canyons, are considered as hotspots of high importance for regional pelagic ... ecosystems and also for the krill fishing industry. Despite the importance of such krill hotspots, their ... dynamics over time with respect to spatial distribution and demographical composition of krill including ...
Meeting Document : WG-EMM-14/15 : Author(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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Fishery monitoring
conservation measure (CM) that applies to a fishery and the status of the fishery in relation to its catch ... limit. Failure to submit required catch and effort data can result in the closure of the fishery to the ... vessel involved. Which vessels are required to report? Reporting of catch and effort data are required ... purpose of CM 23-07, paragraph 1, any vessel that is licenced and notified to participate in an ...
Page : Site Section: Fisheries
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Working Group on Acoustic Survey and Analysis Methods (WG-ASAM)
to hydroacoustic surveys of Antarctic krill. Each of the meetings of the sub-group have had specific ... terms of reference from the Scientific Committee as a result of a specific issue where expert evaluation ... of acoustic techniques has been required. In 2019 it became a full working group: WG-ASAM (SC-CAMLR ... (United Kingdom) and Dr Xinliang Wang (China). A list of the meetings (including reports) is available ...
Page : Site Section: Science
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Fishery-related information for WG-FSA-04
Abstract: Information on CCAMLR fisheries of relevance to the work of WG-FSA is summarised ... . Additional fishery-related information can be found in WG-FSA-04/6, 04/7, 04/8 and 04/9 (summaries of ... observer data), WG-FSA-SAM-04/4 (Development of Fishery Plans), SC-CAMLR-XXIII/BG/1 (catches in the ... Convention Area) SC-CAMLR-XXIII/BG/3 (summary of notification for new and exploratory fisheries), SCIC-04/3 ...
Meeting Document : WG-FSA-04/5 Rev. 1 : Author(s): Secretariat
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CCAMLR Fisheries: 2008 Update
Abstract: Information on CCAMLR fisheries of relevance to the work of WG-FSA is summarised ... , including availability of data, data-related developments in 2007/08, catches in assessed and exploratory ... WG-FSA-08/5 to 08/8 (summaries of observer data), SC-CAMLR-XXVII/BG/1 (catches in the Convention Area ... ) CCAMLR-XXVII/12 (summary of notification for new and exploratory fisheries), WG-FSA-08/10 (estimates of ...
Meeting Document : WG-FSA-08/04 : Author(s): Secretariat
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Acoustic survey design to estimate krill biomass in Subareas 48.1, 48.2 and 48.3
Abstract: The Scientific Committee has requested advice on the feasibility of conducting a ... synoptic survey of krill biomass in Statistical Area 48. Example calculations are presented for estimating ... the amount of survey effort required to achieve a target level of precision using a stratified random ... 1.25 ship-months of survey effort can provide an estimate of krill biomass in Subareas 48.1, 48. 2 and ...
Meeting Document : WG-EMM-95/71 : Author(s): Hewitt, R.P., Watters, G.