Search results
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Report on bottom fisheries and vulnerable marine ecosystems: draft template and workplan
Abstract: The WG-FSA Subgroup on VMEs was tasked with providing a draft template of a Report on ... the workplan and discussion. It has been compiled by the Subgroup for consideration at WG-EMM in 2010 ... . The structure aims to follow the logic of the fishery reports already provided by WG-FSA: (i) Status ... of the fisheries, (ii) Knowledge on the fish stocks, (iii) Methods, (iv) Assessments of status and ...
Meeting Document : WG-EMM-10/15 : Author(s): WG-FSA Subgroup on VMEs
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A method for inferring movement rates of fish from mark–recapture data
Abstract: This paper presents methods to infer the rate of movement of fish that are marked ... , released, and subsequently captured. The information that is available is the location and date of the ... release and the recapture. In addition, the intensity of fishing effort (i.e. sampling) by location and ... time is known. The simplest approach is to make a frequency plot of the distance between each release ...
Meeting Document : WG-FSA-05/66 : Author(s): C. Wilcox (Australia)
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Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines
fisheries that suffer significant losses caused by odontocete depredation. However, the efficacy of AHDs to ... deter odontocetes from fishing gear remains poorly investigated. To determine the effectiveness of AHDs ... m from the source) from a Patagonian toothfish longliner operating off the Crozet Islands while it ... a 10- 300 m range from the vessel, as they only have access to fishing gear during hauling. We ...
Meeting Document : WG-FSA-14/P04 : Author(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet
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Summary of data collected by Japan and South Africa in Subarea 48.6 between 2013 and 2015, and other statistics available for assessment of Dissostichus spp. in Subarea 48.6.
Abstract: The end of the 2014/15 season will see the completion of the third year of the multi ... -year research plan being jointly undertaken by Japan and South Africa in Subarea 48.6. The progress ... report presented at WG-SAM-15 (WG-SAM-15/50) has not been updated for WG-FSA as neither of the vessels ... undertaking the research returned to the study area over the winter. WG-SAM-15 requested that a summary of the ...
Meeting Document : WG-FSA-15/66 : Author(s): R.W. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Estimating uncertainty in local biomass estimates of toothfish in CCAMLR in Subareas 58.4 and 48.6 research blocks
Abstract: This study has used bootstrap methodology to quantify the uncertainty in toothfish ... biomass estimates from Chapman mark-recapture and the CPUE-by-seabed area methods in Research Blocks in ... Subareas 58.4 and 48.6. The Chapman mark-recapture point estimates and their confidence intervals were ... generally much larger than the point estimates and confidence intervals from the CPUE-by-seabed area biomass ...
Meeting Document : WG-SAM-17/12 : Author(s): L. Robinson, P. Burch and K. Reid
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Annual report of global toothfish trade data
Abstract: This paper provides analysis on the data collated by GLOBEFISH from publicly released ... sources for the trade of toothfish products for the 2017 calendar year. The analysis has identified that ... the forms with mean unit values of 22.30 US$/kg for imports and 18.85 US$/kg for exports. The data ... identified the largest importer was the United States of America (USA), accounting for 54.01% of the global ...
Meeting Document : CCAMLR-XXXVII/BG/08 Rev. 1 : Author(s): CCAMLR Secretariat
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Trade data analysis – Annual report of global toothfish trade data
Abstract: This paper provides analysis on the data collated by GLOBEFISH from publicly released ... sources for the trade of toothfish products for the 2018 calendar year. The analysis has identified that ... forms with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data ... identified the largest importer was the United States of America (USA), accounting for 36.50% of the global ...
Meeting Document : CCAMLR-38/BG/09 : Author(s): CCAMLR Secretariat
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Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot
ecosystems and also for the krill fishing industry. Despite the importance of such krill hotspots, their ... spawning state is not well described or understood. In the present study, a krill fishing vessel during ... demographic composition and the continuous acquisition of acoustic data for studying their distribution within ... a 75 km strip on the shelf edge northwest of the South Orkney Islands. The study was carried out ...
Meeting Document : WG-EMM-14/15 : Author(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)
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Results of scientific observation in Antarctic krill fishery in 2010/11: I. state of observer deployment and data collection
Abstract: We analyzed the 2010/11 krill observer data to confirm the outcome of recent revisions ... of krill observation scheme. This paper summarizes the status of observer deployment, sampling ... protocol and data collection in krill fisheries in 2010/11. All the 12 krill fishing vessels that operated ... in 2010/11 deployed scientific observers in accordance with the agreed systematic coverage. The ...
Meeting Document : WG-EMM-12/65 : Author(s): M. Kiyota and T. Okuda (Japan)
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Risk maps for Antarctic krill under projected Southern Ocean acidification
Abstract: The embryonic development of Antarctic krill (Euphausia superba) is sensitive to ... . Exposure to elevated CO 2 during the first 3 days of embryonic development significantly retards subsequent ... development even if the embryos are transferred to seawater with current levels of CO 2. Krill embryos appear ... more vulnerable to ocean acidification than other pelagic crustaceans such as copepods. p CO 2 in the ...
Meeting Document : WG-EMM-14/P06 : Author(s): S. Kawaguchi, A. Ishida, R. King, B. Raymond, N. Waller, A. Constable, S. Nicol, M. Wakit and A. Ishimatsu