Resultados de la búsqueda
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Updated biological parameters of Dissostichus mawsoni at Subarea 48.6
Abstract: To achieve the milestone “Updating biological parameters for the population, suitable ... , para 3.130), this paper represents the updated length-weight relationship, growth curve, ALK, and ... maturity ogives as biological parameters of Dissostichus mawsoni at Subarea 48.6 up to the 2017/18 fishing ... season collected from a collaborative research program among Japan, South Africa, and Spain. Due to the ...
Meeting Document : WG-SAM-2019/36 : Autor(es): T. Okuda and R. Sarralde Vizuete
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Research program on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2019/20 to 2021/22
Abstract: The Scientific Committee considered the assessment of Dissostichus spp. in data-poor ... fisheries to be of a high priority (SC-CAMLR-XXIX, paragraphs 3.125 to 3.145). The use of different gear ... types for the implementation of a multi-Member research on Dissostichus spp. in East Antarctica ... (Divisions 58.4.1 and 58.4.2) carried out in the seasons 2011/12- 2017/18 is a critical factor for their ...
Meeting Document : WG-SAM-2019/19 : Autor(es): Delegation of the Russian Federation
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Proposal for multi-Member research on Dissostichus spp. in Divisions 58.4.1 and 58.4.2 from 2019/20 to 2021/22
Abstract: The Scientific Committee considered the assessment of Dissostichus spp. in data-poor ... fisheries to be of a high priority (SC-CAMLR-XXIX, paragraphs 3.125 to 3.145). The use of different gear ... types for the implementation of a multi-Member research on Dissostichus spp. in East Antarctica ... (Divisions 58.4.1 and 58.4.2) carried out in the seasons 2011/12- 2017/18 is a critical factor for their ...
Meeting Document : WG-FSA-2019/52 : Autor(es): Delegation of the Russian Federation
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Signy Island, South Orkney Islands, 2003/04
Island, South Orkney Islands are reported for the 2003/2004 summer season. There were no sightings of ... Abstract: The results of the eighth annual survey of entanglement of Antarctic fur seals at Signy ... undertaken at Bird Island, South Georgia in 2003/04. In the case of Bird Island, data indicated that the ... number of entangled fur seals had decreased by 31% compared to the previous year, this being the lowest ...
Meeting Document : SC-CAMLR-XXIII/BG/12 : Autor(es): Delegation of the United Kingdom
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Preliminary tag-recapture based population assessment of Antarctic toothfish in Subarea 48.4
Abstract: The stock of Antarctic toothfish (D. mawsoni) in CCAMLR subarea 48.4 is estimated from ... tagging returns to be 982 tonnes in 2018. Applying the CCAMLR agreed precautionary assumption of average ... biomass across the time series and harvest rate of γ = 0.038, implies a 2018/19 yield of 37 tonnes ... , unchanged from the 2017/18 catch limit. Historically, a precautionary approach has been applied in treating ...
Meeting Document : WG-FSA-18/26 : Autor(es): T. Earl and A. Riley
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Detection of predator dive patterns from stationary echosounder data
Abstract: Standard protocols for processing of echosounder data are geared towards the estimation ... of biomass indices of pelagic organisms. More transient visitors to the watercolumn however also give ... echoes, and the data provided by the echosounders may be used to assess the behaviour of these organisms ... , as well as their interactions with the pelagic residents. Using freely available software and neural ...
Meeting Document : WG-EMM-2019/34 : Autor(es): T. Klevjer and G. Skaret
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Estimates of local biomass with uncertainty for Antarctic (Dissostichus mawsoni) and Patagonian (D. eleginoides) toothfish in research blocks in Subareas 48.6 and 58.4
estimated using a CPUE-by-seabed-area analogy method and Chapman tag-recapture methods following the advice ... of WG-SAM. The trend analysis decision rules developed by WG-FSA 17 were applied to provide catch ... limits for 2018/19. The only research blocks in which there were adequate recaptures were 486_2, 486_3 ... and 486_4. However, as the trend in all three of these research blocks was declining the revised catch ...
Meeting Document : WG-FSA-18/12 : Autor(es): CCAMLR Secretariat
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Progress update on Antarctic toothfish inter-connectivity project
Abstract: Here we provide a progress update on the Antarctic toothfish genetic connectivity ... nine CCAMLR members with the vast majority of these collected during the 2017/18 season. Of the planned ... sample collections of Antarctic toothfish and recommend the CCAMLR data warehouse develops sample data ... Approved Document Release Consent: No Delegation responsibility for releasing documents: Australia ...
Meeting Document : WG-FSA-18/64 : Autor(es): D. Maschette, A. Polanowsk, B. Deagle, D.C. Welsford and P. Ziegler
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Accumulation of stranded plastic objects and other artefacts at Inaccessible Island, central South Atlantic Ocean
adrift in the South Atlantic Ocean. Published in: S. Afr. T. Nav. Antarkt., Deel 18, No. 1, 1988 Author(s ... repeated the survey made at the same site during 1984, when the highest density of artefacts at the Tristan ... m boulder beach at the western point of Inaccessible Island, central South Atlantic Ocean. This ... Inaccessible Island. The minimum rate of artefact accumulation was 88 objects km-1 year-1. Total numbers of ...
Meeting Document : CCAMLR-VII/BG/04 : Autor(es): P.G. Ryan and B.P. Watkins (South Africa)
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Evaluating MPA scenarios in Planning Domain 1 using a dynamic food-web model
Abstract: We describe a spatially and temporally dynamic food-web model of the region surrounding ... the Western Antarctic Peninsula that can be used to evaluate the potential impacts of various marine ... protected area (MPA) scenarios. We evaluate four MPA scenarios, including two representing portions of the ... General Protection Zone presented by the Delegations of Argentina and Chile (SC-CAMLR- XXXVI/18). Our ...
Meeting Document : SC-CAMLR-XXXVII/BG/04 : Autor(es): Delegation of the USA