Resultados de la búsqueda
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Measures to avoid bias in abundance estimates of Dissostichus spp. based on tag-recapture data
Abstract: Using the simplest form of an abundance estimator using tag-recapture data, the Lincoln ... difficulty in accurately estimating key parameters, and consequently introduce bias into an abundance ... estimate. We also review the methods that have been used in CCAMLR tag recapture to program to mitigate ... against this bias, or to account for their effects in assessment models. In nearly all cases, examples of ...
Meeting Document : WG-SAM-12/23 : Autor(es): D.C. Welsford and P.E. Ziegler (Australia)
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Development of the VME registry
Abstract: The Secretariat has proposed a work plan and budget for the development of a VME ... , paragraph 4.251(xvi)). This registry would include a secure database for holding notification details and ... related data, for generating web-based lists of VMEs notified under CM 22-06 and VME risk areas and fine ... -scale rectangles notified under CM 22-07, and for holding documents outlining CCAMLR’s management advice ...
Meeting Document : WG-FSA-10/07 : Autor(es): Secretariat
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Temporal variation in Antarctic sea-ice: analysis of a long-term fast-ice record from the South Orkney Islands
data from Signy Island, which we have cross-calibrated and combined with an earlier series from the ... recent years this cyclicity has broken down and fast-ice duration has been greater than expected ... Antarctic continent with a period of approximately 7-9 years. Analysis of atmospheric and oceanic ... variability has significant implications for ecosystem function and the detection of short-term and long-term ...
Meeting Document : WG-EMM-95/80 : Autor(es): Symon, C., Murphy, E.J., Priddle, J., Clarke, A.
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Subgroup on Assessment Methods: Report to the Working Group on Fish Stock Assessment 2002
incorporating into assessments 2. a draft plan for assessments at WG-FSA this year, including reporting and ... Abstract: Over the last two years, discussions in WG-EMM, WG-FSA and the Scientific Committee ... have highlighted a need to develop an integrated work plan to develop and validate assessment methods ... -FSA. The Working Group suggested that the best way to achieve this is for the assessment subgroup to ...
Meeting Document : WG-FSA-02/80 : Autor(es): A.J. Constable (Subgroup Coordinator)
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Population subdivision and distribution of Euphausia superba in the region of the Antarctic Peninsula and adjacent waters in relation to fishery development
Abstract: Analysis of original and literature data for the past 10 years pertaining to the region ... ±41% and 1708±30% thousand tons in March and December-1984 respectively for the area south of 60°S ... estimated. For this area, the 1984 survey data yielded krill biomass estimates of 3.27 to 7.89 million tons ...
Meeting Document : SC-CAMLR-VIII/BG/21 : Autor(es): Delegation of USSR
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Fishery Report: Dissostichus eleginoides Crozet Island inside the French EEZ (Subarea 58.6)
more recent years. 8. Depredation has an impact on the catch landed from each line. Depredation was ... meeting. Table 2 provides a summary of the reported catches by year and nationality for longline vessels ... . Details of the fishery The fishery for Dissostichus eleginoides operated in the French EEZ around the ... . eleginoides set by France in its EEZ in Subarea 58.6 for the 2007/08 season (defined by France, 1 September ...
Document : Site Section: Publications
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Determining toothfish otolith structure using oxytetracycline at South Georgia – a preliminary report
2002 were injected with oxytetracycline (OTC) to mark the otoliths for age validation purposes. The ... Abstract: A tagging programme for Patagonian toothfish (Dissostichus eleginoides) was initiated ... dosages used for the injection of both OTC and SrCl2 did not impact negatively on their survival rate ...
Meeting Document : WG-FSA-03/80 : Autor(es): M.G. Purves, M. Belchier, D.J. Agnew, G. Moreno and T.R. Marlow (United Kingdom)
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By-catch of juvenile Antarctic fish from krill (Euphausia superba Dana) fisheries in the South Georgia area, in 1992
Abstract: Discussed in this paper is an investigation on juvenile antarctic fish caught during ... /1t krill and 2434±579 ind/1t krill for all trawls and for shelf trawls, respectively. Similarly, for ... -80 mm in May-June and 97 mm in late July. The mean growth rate of this species over this period is ...
Meeting Document : WG-FSA-93/8 Rev. 1 : Autor(es): E.A. Pakhomov and S.A. Pankratov (Ukraine)
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A BALANCED MODEL OF THE FOOD WEB OF THE ROSS SEA, ANTARCTICA
the base. A survey of the available literature and both published and unpublished data provided an ... ecosystem effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). The model consolidates ... quantitative information on trophic links across all the major biota of the Ross Sea and tests for data ... consistency. The model has 38 trophic groups and is balanced in terms of annual flows of organic carbon in an ...
Meeting Document : WG-EMM-09/42 : Autor(es): M.H. Pinkerton, J.M. Bradford-Grieve and S.M. Hanchet (New Zealand)
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Spatio–temporal dynamics of Antarctic krill fishery: identification of fishing hotspots
catch limit, representing 0.11 the allowable catch limit for CCAMLR Area 48, and further divided by ... FHs. Results indicate that the fishery is presenting consistent FH across years, particularly during ... those years when the precautionary catch limit is reached. These events occur mainly in the centre of ... (>10 ton∙km-2) during years when the catch limit is reached. The analysis show that the krill ...
Meeting Document : WG-EMM-16/52 : Autor(es): F. Santa Cruz, B. Ernst and J.A. Arata