Resultados de la búsqueda
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Annual report of research fishing operations at Subarea 48.6 in 2016/17 fishing season
Abstract: This paper represents the annual report of a multi-member longline survey on Antarctic ... Africa. The data set, C2 and Observer data, was provided by the CCAMLR Secretariat on the 20th of April ... , 2018. In this paper, the data set during last fishing season (2016/17) was used for reporting the ... quantity of data, samples collected, and results of quick analysis as a progress toward research milestones ...
Meeting Document : WG-SAM-18/32 : Autor(es): Delegations of Japan and South Africa
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CPUE values derived from Soviet fishery statistics as indicators of Antarctic krill density fluctuations in 1977–1991
Abstract: The average CPUE values, annual and calculated for the periods of 1977-1986 and 1986 ... fluctuations. Rather high stability of the values investigated is revealed. It is proposed that krill density ... of 170-200 g/m2 may be considered as an average characteristic value for the area 48. It was revealed ... - 1991 are considered. It is assumed that these values adequately describe trends in krill density ...
Meeting Document : WG-EMM-04/39 : Autor(es): F.F. Litvinov, A.Z. Sundakov and G.N. Andrianov (Russia)
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
were taken of the differences in gain settings, then integrated 120 kHz echo signals would be under ... biomass by acoustic techniques is dependent on a number of factors of which one of the most fundamental is ... those applied in the Antarctic, even after adjustments have been made to account for differences in ... -reported by 2.8 dB, leading in turn to an under-estimation of krill biomass by 52.5%. Every effort should ... employed during surveys around South Georgia, and no account were taken of the differences in gain ... surveys are conducted. In addition, the implications for biomass estimation of temperature variation ... gain applied by system electronics in some echosounders (Simmonds, 1990), the possible effects of ... temperature, and suggested that many of the transducers then used in fishery acoustics would not be stable ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Autor(es): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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TOPIC SUMMARY OF CEP DISCUSSIONS ON NON-NATIVE SPECIES (NNS) IN ANTARCTICA
continuing consideration of this important topic which receives the highest priority in the 5-yer CEP ... Abstract: This paper summarises past discussions by the Committee for Environmental Protection ... (CEP) about non-native species (NNS). The intention is to provide a central resource for the CEP’s ... workplan. Author(s): CEP Observer to CCAMLR Title: TOPIC SUMMARY OF CEP DISCUSSIONS ON NON-NATIVE SPECIES ...
Meeting Document : CCAMLR-XXVII/BG/19 Rev. 1 : Autor(es): CEP Observer to CCAMLR
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Demographic effects of extreme weather events: snow storms, breeding success, and population growth rate in a long-lived Antarctic seabird
consequences of such events. In this study, we aimed to quantify the effects of snow storms on nest survival in ... season and nearly 30% of the interannual variation in colony productivity in period 1985–2014. Snow ... during a snow storm than chicks in good condition. This stresses the importance of con- sidering ... are poorly understood because they are, by definition, rare events. If the frequency and severity of ...
Meeting Document : WG-EMM-16/P13 : Autor(es): S. Descamps, A. Tarroux, Ø. Varpe, N.G. Yoccoz, T. Tveraa and S.-H. Lorentsen
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Abnormal distribution of South Georgia ray, Raja georgianus, in February 2000
distribution of Raja georgiana, rather abundant species on the South Georgia shelf. The adult rays longer 206 ... O.A. Berezhinskiy (Russia) Title: Abnormal distribution of South Georgia ray, Raja georgianus, in ... Abstract: Two sequential groundfish surveys in January-February 2000 revealed very different ... mm were not caught during the second survey, the first one did not reveal such anomaly. The reasons ...
Meeting Document : WG-FSA-01/37 : Autor(es): F.F. Litvinov, V.N. Shnar, V.A. Khvichia and O.A. Berezhinskiy (Russia)
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Summary of work done to augment and enhance that presented in WG-EMM-05/13
krill movement in the KPFM, 2) errata for the main text of WG-EMM-05/13, 3) errata for and extensions to ... -EMM-05/13. Our intent here is to augment and enhance WG-EMM-05/13, and the follwing text can be ... attached to WG-EMM-05/13 as its third appendix. To facilitate such attachment, we start the page numbering ... of this appendix at page 55. This appendix contains 1) example parameterizations and results for ...
Meeting Document : WG-EMM-05/13 Appendix 3 : Autor(es): G.M. Watters, J.T. Hinke (USA), K. Reid and S. Hill (United Kingdom)
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Ecological implications of body composition and thermal capabilities in young Antarctic fur seals (Arctocephalus gazella)
the role of lipid stores in a high-latitude pinniped, the body composition and thermoregulatory ... respirometry and hydrogen isotope dilution. From these data we constructed a model to examine the importance of ... percent lipid as covariates accounted for the different metabolic responses in pups and yearlings for all ... Abstract: In comparison to other homeotherms, young recently weaned marine mammals in high ...
Meeting Document : WG-EMM-04/69 : Autor(es): M.R. Rutishauser, D.P. Costa, M.E. Goebel and T.M. Williams (USA)
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Assessment of Patagonian toothfish (D. eleginoides) in Subarea 48.3
Abstract: Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ... the current status of the stock is at 51% of B 0. Spawning biomass has been increasing in recent years ... . Projections indicate that a constant catch of 2 600 tonnes in the 2017/18 and 2018/19 seasons would be ... consistent with the CCAMLR decision rule. Author(s): T. Earl and S. Fischer Title: Assessment of ...
Meeting Document : WG-FSA-17/53 : Autor(es): T. Earl and S. Fischer
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Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3
Abstract: Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ... the current status of the stock is at 50% of B 0. Spawning biomass has been relatively constant in ... recent years. Projections indicate that a constant catch of 2,420 tonnes in the 2020 and 2021 seasons ... would be consistent with the CCAMLR decision rule. Author(s): T. Earl Title: Assessment of Patagonian ...
Meeting Document : WG-FSA-2019/28 : Autor(es): T. Earl