Résultats de la recherche
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Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
Abstract: The depletion-corrected average catch (DCAC) formula is an extension of the potential ... -yield formula, and it provides useful estimates of sustainable yield for data-poor fisheries on long ... -lived species. Over an extended period (e.g. a decade or more), the catch is divided into a sustainable ... yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ...
Meeting Document : WG-SAM-11/P3 : Auteur(s): A.D. McCall
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Some thoughts on the CCAMLR risk assessment for seabird–fishery interactions
applied for 10 years and helps to define mitigation and monitoring requirements for fisheries within the ... Abstract: The CCAMLR system for assessing risk of fisheries mortalities to seabirds has been ... waters of the CCAMLR convention area. Annual review of the information by used CCAMLR Working Group on ... Incidental Mortality Associated with Fishing for the assessments of risk, and performance of fisheries within ...
Meeting Document : WG-FSA-06/33 : Auteur(s): S. Waugh (New Zealand)
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Improving observer’s identification skills for better data quality through a phone application
advices on fishery management. This paper presents the use of an application on smart phone to help ... . Duhamel Title: Improving observer’s identification skills for better data quality through a phone ... Delegation responsibility for releasing documents: France ...
Meeting Document : WG-FSA-18/30 : Auteur(s): N. Gasco, A. Martin, C. Chazeau, C. Péron, P. Pruvost and G. Duhamel
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Revised biological parameters for the Antarctic skates Amblyraja georgiana and Bathyraja cf. eatonii from theRoss Sea
of B. cf. eatonii, but it is probably around 65–75 cm for males and 70–80 cm for females. Reasonable ... Abstract: Revised weight-length and length-length regressions are provided for Amblyraja ... georgiana and Bathyraja cf. eatonii. Significant differences between males and females occurred for all ... comparisons except for B. cf. eatonii length-length regressions. Some observer maturity staging data were ...
Meeting Document : WG-FSA-10/27 : Auteur(s): M.P. Francis (New Zealand)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the SSRU 88.2E, using revised catch, CPUE, catch ... -at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... estimated to be 352 t for the reference case and 366 t for the all vessels case, assuming a future fishing ...
Meeting Document : WG-FSA-06/48 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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THE ROSS SEA: A CANDIDATE FOR IMMEDIATE INCLUSION IN A NETWORK OF MARINE PROTECTED AREAS
populations and communities, thus confounding management. It is timely for CCAMLR to develop a network of MPAs ... last stretches of the world’s oceans where sea ice remains an important part of the system. The Ross ... Sea, therefore, represents a refuge both for science, historical value, and a diverse, sea-ice ... CANDIDATE FOR IMMEDIATE INCLUSION IN A NETWORK OF MARINE PROTECTED AREAS Approval: Approved Secretariat ...
Meeting Document : CCAMLR-XXVII/BG/30 : Auteur(s): Submitted by ASOC
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A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty
also includes an option for a stock to experience a known catch history before the constant catch ... Abstract: This paper presents a flexible structure for a general yield model, which provides ... flexibility for assessing the influence of different patterns of growth, natural mortality, spawning and ... under a specified catch regime. The model uses an adaptive Runge-Kutta procedure to evaluate stock ...
Meeting Document : WG-FSA-95/41 : Auteur(s): de la Mare, W.K., Constable, A.J.
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Developing integrated assessments for Dissostichus eleginoides based on the CCAMLR precautionary approach
, length composition and age), and mark-recapture data. This method is an extension of current practice ... Abstract: This paper describes a possible method for implementing the precautionary approach in ... assessments of Dissostichus stocks when a number of different datasets are being integrated for estimating ... current biomass and age structure. Consideration is given to its application to the assessment of ...
Meeting Document : WG-FSA-SAM-05/16 : Auteur(s): I. Ball and A.J. Constable (Australia)
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
, paragraphs 2.230-2.244). These outputs would first be provided to WG-FSA for review, which in turn would ... pass these with a commentary on to the Scientific Committee to support its review and advice on CM 51 ... Abstract: At its annual meeting in 2016, WG-EMM recalled its obligation to review and advise on ... undertaken to further develop a risk assessment approach to spatially subdivide the trigger level for krill ...
Meeting Document : SC-CAMLR-XXXV/BG/37
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Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011
the average catch for the previous four years (2006-2009). Catches of C. gunnari were very low, with ... commenced in 1997. An earlier survey in April 2010 was not completed, but valid hauls from this, as well as ... the 2011 catch, at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60 ... were just below and just above average for 2010 and 2011 respectively. A notable increase in the catch ...
Meeting Document : WG-FSA-11/23 : Auteur(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)