Résultats de la recherche
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Demographic effects of extreme weather events: snow storms, breeding success, and population growth rate in a long-lived Antarctic seabird
population growth rate. We used detailed data on daily individual nest survival in a year with frequent and ... extreme weather events increase, there is an urgent need to understand and predict the ecological ... Antarctic petrels and assess whether snow storms are an important driver of annual breeding success and ... colony level. Our results indicated that snow storms are an important determinant of nest survival and ...
Meeting Document : WG-EMM-16/P13 : Auteur(s): S. Descamps, A. Tarroux, Ø. Varpe, N.G. Yoccoz, T. Tveraa and S.-H. Lorentsen
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Preliminary results of the three season research surveys of the Spanish FV Tronio in Division 58.4.1
year of the multi-year research survey in the Division 58.4.1, as far as the ice condition allowed, the ... continues reading of otoliths for ageing Antarctic toothfish. These data will be added to the input data in ... the near future in order to carry out an integrated assessment of Dissostichus mawsoni stocks in this ... Secretariat Workflow Status: Content Approved Delegation responsibility for releasing documents: CCAMLR ...
Meeting Document : WG-SAM-16/40 Rev. 1 : Auteur(s): R. Sarralde, L.J. López-Abellán and S. Barreiro
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Entanglement in man-made debris of Antarctic fur seals at Bird Island, South Georgia
accounted for 64% of animals older than this. Obvious physical injury was being caused to 30% of animals and ... . Males accounted for 71% of entanglements, 88% of which were of young (1-4 years old) animals; females ... Abstract: Neck collars of man-made marine debris were seen on 208 Antarctic fur seals (and ... only on 19% of animals was the collar loose enough potentially to come off. The magnitude of the ...
Meeting Document : CCAMLR-VIII/BG/05 : Auteur(s): J.P. Croxall, S. Rodwell and I.P. Boyd (United Kingdom)
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Age and growth of spiny icefish (Chaenodraco wilsoni Regan, 1914) off Joinville–D’Urville Islands (Antarctic Peninsula)
1–5 years for males and 1–4 years for females of C. wilsoni. Applying the von Bertalanffy (VB ... males. Age-at-sexual maturity was estimated to be about 2 years for females and 2.5 years for males ... selected for the study, consisting of 120 females and 98 males. The age of fish was estimated by counting ... ) growth function to the age–length data, a growth curve was obtained for each sex. The estimated values of ... dominated by a strong peak at 26 cm TL, with two other well-defined modes at 20 and 30 cm TL (Figure 3b ... ., 2007). As a rule, the net was generally towed at about 3–3.5 knots for 30 min on the bot- tom during ... population (c). 0 5 10 15 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) a(a ... 20 25 30 35 40 0 1 2 3 4 5 6 Age (years) To ta l l en gt h (c m ) c(c) Age (years) To ta ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 115–130 : Auteur(s): La Mesa, M., A. De Felice, C.D. Jones, K.-H. Kock
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Monitoring variability and change in the plankton communities of the Scotia Sea through Continuous Plankton Recorder surveys
Survey (BAS) and the Sir Alister Hardy Foundation for Ocean Science (SAHFOS). This report documents the ... . An analysis considering the relationship between satellite-derived dynamic height (from which frontal ... Approved Delegation responsibility for releasing documents: United Kingdom ... conditions, particularly in the location of the Polar Front. This has a strong influence on patterns of ...
Meeting Document : WG-EMM-16/29 : Auteur(s): G.A. Tarling, M.Z. Wootton, D.G. Johns, T.D. Jonas, E.J. Murphy and P. Ward
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CCAMLR-XXXI
intention to conduct an exploratory longline fishery for Dissostichus spp. in 2012/13 Delegation of France ... Proposal for a CCAMLR Compliance Evaluation Procedure Delegation of Australia CCAMLR-XXXI/30 EU proposal ... /BG/20 Heard Island and McDonald Islands Exclusive Economic Zone 2011/12 IUU catch estimate for ... CCAMLR-XXXI/BG/23 Report of the Depositary Government for the Convention on the Conservation of Antarctic ...
Meeting
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Further development of the fishery plans
established by the Scientific Committee and Commission. In recent years, Plans have been drafted for the krill ... agreed by the Commission, as well as key operational information for each fishery. In 2004, the ... /6). Each Fishery Plan draws together the history of management measures and fishery requirements ...
Meeting Document : WG-FSA-SAM-04/04 : Auteur(s): Secretariat
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Cephalopod research in the Antarctic
trophic relations. However, there is insufficient information at present for CCAMLR to formulate effective ... policy for management of Antarctic cephalopods. In view of the rapidity that cephalopod fisheries can ... develop there is need for co-ordinated international research effort. Any commercial fishing for ... of future commercial exploitation. Research is being carried out at BAS on the species composition ... Antarctic Living Marine Resources (CCAMLR) should be preparing plans for an effective management strategy ... data in turn may be useful, in the future, for predicting year class strength of exploited species ... successfully raised in rabbits and testing is being carried out for cross reactions with other pelagic ... Cephalopoda as well as publishing a newsletter. It provides an international forum for scientific exchange ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 323-334 : Auteur(s): Rodhouse, P.G.
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Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of populations in subarea of South Georgia
catches were based on fish of two contiguous year classes, strong 1984 year class and middle 1983 year ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... were studied for different periods. The analysis of age composition of icefish in subarea 48.3 showed ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ...
Meeting Document : WG-EMM-03/60 : Auteur(s): K.V. Shust and E.N. Kuznetsova (Russia)
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Growth of mackerel icefish (Champsocephalus gunnari) and age-size composition of population in subarea of the South Georgia
catches were based on fish of two contiguous year classes, strong 1984 year class and middle 1983 year ... represented by fish of two contiguous age groups. It was shown that in the 1980s during a number of years the ... were studied for different periods. The analysis of age composition of icefish in subarea 48.3 showed ... class. These year classes appeared against a background of the intensive icefish fishery, and krill ...
Meeting Document : WG-FSA-SAM 03/7 : Auteur(s): K.V. Shust and E.N. Kuznetsova (Russia)