Résultats de la recherche
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Climate change and precautionary spatial protection: ice shelves
) should be created as no take Marine Protected Areas, and that the boundaries of these areas should ... Abstract: Regional climate change is now known to be well established in the Antarctic ... , particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ...
Meeting Document : WS-MPA-11/17 : Auteur(s): P.N. Trathan and S.M. Grant (UK)
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Abundance of larvae and assessment of recruitment size of Carlsberg lantern fish (Electrona carlsbergi Tåning, 1932) - (family myctophidae) in Southwest Atlantic in 1989
Abstract: This study was based on the data from the ichthyoplankton survey made in March-April ... 1989 by R/V "Vozrozhdenie" in the subtropical frontal zone over the South Atlantic ridge ... arid vertical hauls at 500- 0m. The method of delta-distribution of random values (Aitchison, Brown ... , 1957; Pennington, 1983) was used to count the larvae. The data obtained was taken to estimate the ...
Meeting Document : WG-FSA-95/07 : Auteur(s): Nevisnky, M.M.
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La règle de décision de la CCAMLR, ses qualités et ses faiblesses
ecosystem-based fisheries management, the implications of climate change should be considered by its working ... groups. The robustness of CCAMLR’s tothfish management protocol, based on the Decision Rule, is evaluated ... by considering hypothetical, future changes in the fishery- stock interactions and the stock ... productivity which could result from climate change. The Decision Rule is demonstrated to be highly ...
Meeting Document : SC-CAMLR-38/15 : Auteur(s): Delegation of the United Kingdom
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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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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 : Auteur(s): 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)