Résultats de la recherche
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Non-native Species in the Antarctic: Report of a Workshop
species, but the continent and Southern Ocean can no longer be considered immune. More than 200 non-native ... the marine environment, invasive alien species are recognized as the fifth largest threat to global ... marine biodiversity. To date Antarctica has escaped the most significant impacts from invasive alien ... species have been discovered on the sub-Antarctic islands and several non-native species have been found ...
Meeting Document : SC-CAMLR-XXV/BG/21 : Auteur(s): Delegation of New Zealand
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Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90
vessels operated, the above estimate exceeded no 15%. Taking in account the estimation method used, those ... Abstract: The research performed was aimed at assessment of fishing fleet impact upon krill ... population during the months (December-March), being critical to dependent species. The results of fishing ... intensity estimation are presented on the basis of haul to haul commercial statistics for Russian fleet ...
Meeting Document : WG-EMM-97/51 : Auteur(s): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data
variation was significant (CV=73%) but no systematic change in krill biomass was evident during the period ... , based on data from scientific nets and covering the years between 2000 and 2011. The annual biomass ... . The index also suggests that realised exploitation rates were below 0.5% (i.e. catch was <0.5% of ... biomass) and that the potential exploitation rates implied by the operational catch limit (the trigger ...
Meeting Document : WG-EMM-15/28 : Auteur(s): S. Hill, A. Atkinson, C. Darby, S. Fielding (United Kingsom), B. Krafft, O.R. Godø, G. Skaret (Norway), P. Trathan, J. Watkins (United Kingdom)
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Proposal for the removal of night setting requirement for autoline vessels fishing in Division 58.5.2
fishing in Division 58.5.2 to occur at any time of the day/night cycle. The proposal forms part of an ... adaptive approach to management, which considers the risk status of the fishery, knowledge on the ... effectiveness of mitigation measures, mitigation performance record of the vessel, seabird mortality levels and ... assessment of the likely effects of individual mitigation measures to total mitigation response. Since the ...
Meeting Document : WG-FSA-04/73 : Auteur(s): G. Robertson and B. Baker (Australia)
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
directly to the productivity of a stock, stock status, and estimated precautionary yields. In the Ross Sea ... constant across age and sex. In 2018, the independent review of the Ross Sea region D. mawsoni stock ... assessment recommended that CCAMLR consider the robustness and reliability of estimating natural mortality in ... the stock assessment model. We undertake a preliminary investigation of estimating natural mortality ...
Meeting Document : WG-SAM-2019/04 : Auteur(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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Assessment models for Patagonian toothfish in Division 58.4.4, SRU C on Ob and Lena Banks for the years 1989/90 to 2012/13
. The base model assumed the constant year class strength (YCS) and no IUU fishing occurrence in SSRU C ... inconsistence with the estimated vulnerable biomasses, and stock size estimate with an assumption of no IUU ... Abstract: I revised the CASAL catch-at-length models for stock status assessments of Dissostichus ... eleginoides in SSRUs C in Division 58.4.4 a & b (WG-SAM-13/21) following several advices during the last ...
Meeting Document : WG-FSA-13/35 : Auteur(s): K. Taki (Japan)
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Trophic niche of the Antarctic toothfish caught in SSRU 88.3 as inferred from fatty acids and stable isotopes
large trophic overlaps, but shared very limited or no space with RSS. Adults and subadults of the RSS ... of toothfish and their potential prey (bycatch and stomach contents), captured in fisheries in the ... Small Scale Research Units (SSRUs) 88.3 (the Pacific Ocean sector, POS) in austral summer during 2016 ... –2018, making comparisons with previous dataset obtained from the Ross Sea shelf (RSS) and the Indian ...
Meeting Document : WG-FSA-18/21 : Auteur(s): C.-K. Kang, S.-G. Choi, H.Y. Kang, Y.-J. Lee, S. Chung and D.H. An
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Advice to CCAMLR on the International Network for Fisheries Monitoring, Control and Surveillance
Author(s): Secretariat Title: Advice to CCAMLR on the International Network for Fisheries ... Document Release Consent: No Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : CCAMLR-XX/BG/38 : Auteur(s): Secretariat
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South African legislation addressing the requirements of CCAMLR conservation measures
Author(s): Delegation of South Africa Title: South African legislation addressing the ... Document Release Consent: No Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : CCAMLR-XVII/BG/29 : Auteur(s): Delegation of South Africa
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Correspondence relating to the meeting of FAO and non-FAO regional fisheries bodies
Author(s): Secretariat Title: Correspondence relating to the meeting of FAO and non-FAO regional ... : No Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : CCAMLR-XVII/BG/33 : Auteur(s): Secretariat