Résultats de la recherche
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Background information to support development of a feedback management strategy for the krill fishery in Subarea 48.1
Abstract: Here we compile eight vignettes that, together, provide the background data and ... information needed to support development of a feedback management strategy for the krill fishery in Subarea ... Subarea 48.1 will both facilitate and expedite the allocation of a catch limit in the subarea without ... negatively impacting the krill fishery while simultaneously mitigating risks to krill-dependent predators. We ...
Meeting Document : WG-EMM-16/45 : Auteur(s): Antarctic Ecosystem Research Division, Southwest Fisheries Science Center and NOAA Fisheries
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Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea
survey monitoring the recruitment of Antarctic toothfish (Dissotichus mawsoni) in the southern Ross Sea ... was started in 2012. The first year established the feasibility of carrying out a random stratified ... longline survey from a fishing vessel platform, the FV San Aotea II, to monitor recruiting toothfish using ... standardised gear in a standardised manner. It also established the appropriate depths and stratum boundaries ...
Meeting Document : WG-FSA-17/57 : Auteur(s): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
Division 58.5.2. It updates the model used at WG-FSA in 2006 using data from the 2007 season as well as ... 2006 data not available for WG-FSA in 2006. It also includes the following refinements: (i) estimation ... of the coefficient of variation (CV) for length given age, (ii) use of non-informative priors for ... year class strength parameters, (iii) separate selectivity parameters used for the pre-2006 compared to ...
Meeting Document : WG-FSA-07/53 Rev. 1 : Auteur(s): S.G. Candy and A.J. Constable (Australia)
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Size at maturity and histological procedures explored to determine spawning activity of female Dissostichus mawsoni from samples collected from the Ross Sea in January 2004, December 2004 and January 2005
the 2003/04 and 2004/05 commercial fishing seasons in the Ross Sea to improve estimates of size of ... samples of toothfish less than 80 cm and over 120 cm total length were obtained. The first part of the ... study used classic histological techniques to classify ovary stages by the most advanced state of oocyte ... development visible in histological sections of the 2003/04 samples. Using this methodology, it is ...
Meeting Document : WG-FSA-05/63 : Auteur(s): M.E. Livingston and P. Grimes (New Zealand)
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Mitigation trials and recommendations to reduce seabird mortality in the pelagic icefish (Champsocephalus gunnari) fishery (Subarea 48.3)
Abstract: Trials were conducted during the 2004/5 mackerel icefish (Champsocephalus gunnari ... mitigation methods in an attempt to reduce seabird mortality caused by entanglement with the net and to ... idea of binding the net with sisal string on shooting, in order to prevent it opening until it had sunk ... beneath the sea surface, and thereby reduce the chance of seabirds becoming entangled, while attempting to ...
Meeting Document : WG-FSA-05/59 : Auteur(s): J.O. Roe (United Kingdom)
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Further development and progress towards evaluation of an Antarctic toothfish (Dissostichus mawsoni) stock model for the Ross Sea
Abstract: This report outlines the development of a Bayesian sex and age structured population ... model for the assessment of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 ... were investigated. The first scenario considered the Ross Sea fishery as a single homogeneous area ... (single-area). The second and third scenarios (2-area and 3-area respectively) split the Ross Sea into ...
Meeting Document : WG-FSA-SAM-05/12 : Auteur(s): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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DEVELOPMENT OF A REGISTRY OF VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
Abstract: Conservation Measure (CM) 22-06 requires the Secretariat to maintain an inventory of ... vulnerable marine ecosystems (VMEs) in the Convention Area for circulation to Contracting Parties and other ... relevant bodies. In addition, CM 22-07 requires the Secretariat to notify fishing vessels in the relevant ... fishery and their Flag States of the location of VME risk areas and fine-scale rectangles. The Secretariat ...
Meeting Document : WG-FSA-09/06 : Auteur(s): Secretariat
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Proposal for a SCOR Working Group to identify Ecosystem Essential Ocean Variables for measuring change in the biological properties of marine ecosystems
for measuring change in the biological properties of marine ecosystems” was developed by members of ... the Southern Ocean Observing System (SOOS) Science Steering Committee in conjuction with discussions ... amongst members of the Science Steering Committee of the IMBER program, Integrating Climate and Ecosystem ... Dynamics (ICED) as part of the development of the ICED Southern Ocean Sentinel. The aim of the Working ...
Meeting Document : WG-EMM-12/45 : Auteur(s): A. Constable (Australia)
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Towards the development of a stock assessment for Patagonian toothfish in Division 58.4.4, SSRU C on Ob and Lena Banks
Abstract: Following the advice from the CCAMLR Working Group in WG-SAM in 2012, a preliminary ... -length model. In this preliminary assessment, the model was started in 1990 and catch, proportions at ... length in the catch, and recapture data from SSRU C from 2007/08 to 2011/12 were fitted in the model. The ... suggest suitable fits to the data, however, there appears to be a pattern of increasing YCS over the time ...
Meeting Document : WG-FSA-12/59 : Auteur(s): K. Taki (Japan)
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An introduction to the Southern Ocean Observing System (Paper XP18 to CEP–SC-CAMLR Workshop 2016)
Abstract: ATCM 39/XP018 provides an introduction to the Southern Ocean Observing System (SOOS ... ; www.soos.aq). SOOS aims to facilitate the collection and delivery of essential observations on dynamics and ... ). SOOS will be implemented regionally through Regional Working Groups, currently one for the West ... Antarctic Peninsula and one for the Indian Sector. A Ross Sea Working Group is in the process of being ...
Meeting Document : WG-EMM-16/70 : Auteur(s): A.J. Constable, L. Newmman, O. Schofield, A. Wahlin and S. Swart