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A hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1
Abstract: The survey design for an integrated biological/physical survey of Division 58.4.1 ... sampling along 18 regularly spaced transects from the Antarctic coastline to a distance of 180 n miles. The ... data on krill distribution and abundance will be submitted to CCAMLR for the purpose of setting a ... precautionary catch limit on the krill fishery in Division 58.4.1. Author(s): Nicol, S. Title: A hydroacoustic ...
Meeting Document : WG-EMM-95/43 : Автор(ы): Nicol, S.
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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 ... 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 ... depredation rates are a priority for new tagging programs and tag-based assessments. Due to the complexity of ...
Meeting Document : WG-SAM-12/23 : Автор(ы): D.C. Welsford and P.E. Ziegler (Australia)
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A new method to produce high resolution maps of effort and catches in longline fisheries
Abstract: Fishing vessels using ~10 km long bottom longline operate in the French EEZ of ... a new method to better take into account the information associated to the path of the line instead ... of only the mid-point as commonly used to calculate catch rates. Author(s): N. Gasco, C. Péron, C ... . Chazeau, A. Martin, P. Pruvost and G. Duhamel Title: A new method to produce high resolution maps of ...
Meeting Document : WG-FSA-18/43 : Автор(ы): N. Gasco, C. Péron, C. Chazeau, A. Martin, P. Pruvost and G. Duhamel
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Revised research program of Ukraine in Subarea 88.3
Abstract: The research of Dissostichus in Subarea 88.3 carried out by Chile in 1998, New Zealand ... in 2005, Russia in 2011 and 2012 and the Republic of Korea in 2016. It was noted that no tagged ... January to April, as ice conditions permit. It is planned that the number of longline sets will be 60 in ... four reserch blocks. It is planned to complete the study for Dissostichus spp. in Subarea 88.3 within 3 ...
Meeting Document : WG-FSA-17/34 : Автор(ы): Delegation of Ukraine
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A brief characterisation of Patagonian toothfish tag survival and tag detection in CCAMLR Statistical Area 48.3
Abstract: Mark-recapture data is a central element in the assessment of population size and ... growth and the stock assessment for Patagonian Toothfish (Dissostichus eleginoides) in CCAMLR subarea ... 48.3 relies on accurate tagging samples for its assessment. The bias in tagging survival and tag ... detection is assumed to be minimal in the model, but this assumption has not previously been tested; a ...
Meeting Document : WG-FSA-13/29 : Автор(ы): M. Soeffker and R. Scott (United Kingdom)
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Secretariat work in support of WG-EMM
the past year in support of WG-EMM. The outcome of these tasks are outlined in table format. Where ... Abstract: This paper summarises some of the main tasks which the Secretariat has undertaken over ... work in support of WG-EMM Approval: Approved ... required, detailed information is provided in meeting papers Author(s): Secretariat Title: Secretariat ...
Meeting Document : WG-EMM-01/6 : Автор(ы): Secretariat
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Assessment of toothfish in Subarea 48.3, 2006
requested by the Joint Assessment Group. 2. Also as requested by SAM-2006, we provide a review of CPUE ... derived from otolith examination of a random sample of the catch. 3. All the assessments suggest that the ... SSB is now at or close to 50% of its unexploited level. Simple MPD projections suggest that catches in ... . Hillary, M. Belchier, J. Clark and J. Pearce (United Kingdom) Title: Assessment of toothfish in Subarea ...
Meeting Document : WG-FSA-06/53 : Автор(ы): D.J. Agnew, R. Hillary, M. Belchier, J. Clark and J. Pearce (United Kingdom)
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Recalculation of Antarctic krill (Euphausia superba) biomass off East Antarctica (30–80°E) in January–March 2006
CCAMLR guidelines- issued in 2010 via SG-ASAM. Our revised estimate of mean areal krill density is 20.5 ... survey. The recalculation was carried out on the calibrated, multi-frequency acoustic data described in ... Abstract: We recalculated krill biomass for the 2006 BROKE-West (CCAMLR Division 58.4.2) summer ... Jarvis et al. (2010) Deep-sea Res. Pt II 57:916-933. Biomass recalculation methods conformed to the ...
Meeting Document : WG-EMM-12/31 : Автор(ы): M.J. Cox and S. Kawaguchi (Australia)
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ANALYSIS OF KRILL OBSERVER COVERAGE IN SUBAREA 48.3
. The Scientific Committee’s method of systematic partial coverage appears to have been sufficient in ... been implemented since 2002. Observers have been placed on approximately 50% of vessels fishing in any ... one season, and have been present on board for about 30% of the fishing season. They have achieved a ... rate of sampling equivalent to 18% of total hauls taken in a season being sampled for krill and 11% for ...
Meeting Document : WG-EMM-09/25 : Автор(ы): D.J. Agnew, P. Grove, T. Peatman, R. Burns and C. Edwards (United Kingdom)
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Methodical aspects of a large-scale international krill survey in 2019: comments and proposals
Abstract: Methodical aspects of a large-scale international survey in 2019 are discussed in the ... context of stated objectives. The main sources of uncertainty in the results of the 2019 survey are shown ... . Author(s): S. Kasatkina Title: Methodical aspects of a large-scale international krill survey in 2019 ...
Meeting Document : WG-EMM-2019/55 : Автор(ы): S. Kasatkina
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