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Characterising catch and effort from data-poor toothfish fisheries in CCAMLR Divisions 58.4.3 – 58.4.4
not been completed in most of the recent fishing seasons. Soaking time showed high variability and no ... to fishing logbooks recorded in the exploratory fisheries carried out between July 2000 and March ... Bank) accumulated the highest proportion of allocated effort in which a total of 948 sets (52\%) were ... . Baseline analysis presented in this report provides relevant information for the exploratory fisheries and ...
Meeting Document : WG-SAM-13/41 : Автор(ы): J.C. Quiroz, R. Wiff (Chile) and P. Martinez (Argentina)
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Growth rates of Antarctic fur seals as indices of environmental conditions
Abstract: The growth rates of Antarctic fur seal Arctocephalus gazella pups estimated from ... weighing cross-sections of the population were compared with measured/inferred changes in the the ... availability of their main prey species, Antarctic krill Euphausia superba from 1989-2000. There was no ... growth rates in years of low krill availability. Biases reflecting changes in the component of the ...
Meeting Document : WG-EMM-01/20 : Автор(ы): K. Reid (United Kingdom)
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Recruitment of Antarctic krill (Euphausia superba) and possible causes for its variability
Abstract: Between year variability of krill year class success and recruitment during the 1977 ... Resources Program cruises in the Elephant Island area. The recruitment index (R1), based on the relative ... abundance of the 1 + age class, varies substantially between years, whereas it is quite similar between ... different surveys within the same field season. The overall mean recruitment index for all years was Rmean ...
Meeting Document : WG-EMM-95/15 : Автор(ы): Siegel, V., Loeb, V.
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CCAMLR protocol for krill biomass estimation
what is the protocol used to derive the current estimate of B 0, and no single document is currently ... Abstract: The original calculation of B 0 arising from the CCAMLR-2000 survey was undertaken at ... the B 0 workshop held in La Jolla, USA, in May 2000 (SC-CAMLR-XIX, Annex 4, Appendix G). A number of ... ; Conti and Demer, 2005) that led to the re-analysis of the CCAMLR-2000 survey at a workshop held in ...
Meeting Document : SG-ASAM-16/02 : Автор(ы): S. Fielding, A. Cossio, M. Cox, C. Reiss and G. Skaret
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Total mercury and methylmercury concentrations in Antarctic toothfish (Dissostichus mawsoni): Health risk assessment
Abstract: In the present study, the concentrations of total mercury in different organs of the ... Division 58.4.1 off the coast of Antarctica were determined. The results revealed total mercury ... concentrations of 0.165 ± 0.095 mg/kg (0.023–0.454 mg/kg) in the Antarctic toothfish. In fish muscle ... , methylmercury accounted for approximately 40% of the total mercury. In a comparison analysis, muscle and liver ...
Meeting Document : WG-FSA-17/P02 : Автор(ы): M. Yoon, M.-R. Jo, K.-T. Son, W.-S. Choi, S. I. Kang, S.-G. Choi, J. H. Lee and T. S. Lee
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Revised proposal for continuation of a multi-member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2019/20 by Japan, South Africa and Spain
2013 to enhance data collection and analysis in the subarea 48.6. From the last season (2018/19) Spain ... has joined the proposal in order to contribute to the data acquisition and to speed up the integrated ... assessments of the Antarctic toothfish (Dissostichus mawsoni) stock in this subarea (FSA-18/34). The ... continuation of the three-member research proposal for 2019/20 season is presented to ensure continuity of ...
Meeting Document : WG-FSA-2019/23 Rev. 1 : Автор(ы): Delegations of Japan, South Africa and Spain
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Systematic Biodiversity Planning to identify a potential offshore Marine Protected Area network for South Africa
within Marine Protected Areas. This project aimed to support the identification of a spatial management ... industries, scientists, government departments and conducting systematic planning using Marxan. The project ... identified nine priority areas for spatial management including no-take MPAs, benthic protection zones and ... fishery and bycatch management areas. In addition, the project has engaged with offshore stakeholders from ...
Meeting Document : WS-MPA-11/11 : Автор(ы): K. Sink, M. Lombard (South Africa), H. Grantham (Australia), C. Attwood, R. Leslie, T. Samaai, S. Kerwath, T. Fairweather, C. van der Lingen, L. Atkinson, T. Wolf and P. Majiedt (South Africa)
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New Antarctic deep-sea weird leech (Hirudinida: Piscicolidae): morphological features and phylogenetic relationships
parasite of Whitson’s grenadier Macrourus whitsoni (Regan) (Macrouridae: Gadiformes) collected in the Ross ... tubercles on the venter and dorsal segmental tubercles, an uncommon appearance of its anterior sucker with ... earlike edges and an inner membrane around the mouthpore, well-developed musculature and a unique ... combination of features of the reproductive and digestive systems. The presence of uncommon tubercles can be ...
Meeting Document : WG-FSA-18/P01 : Автор(ы): A. Utevsky and S. Utevsky
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Dynamics of Antarctic penguin populations in relation to inter-annual variability in sea-ice distribution
Abstract: To investigate the role of sea ice cover on penguin populations we used principal ... regional (from remote sensing data) sea ice variables. Throughout the study period, the Adélie penguin ... apparent inverse density-dependent relationship between the number of Adélie breeding pairs and the number ... of eggs hatching. For both species, no general relationship was found between either population size ...
Meeting Document : WG-EMM-96/10 : Автор(ы): Murphy, E.J., Croxall, J.P., Trathan, P.N.
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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 : Автор(ы): N.A. Alegría and P.M. Arana
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