Résultats de la recherche
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
populations at 1) the north tip of the Peninsula, and 2) the southern WAP encompassing Charcot Island and ... Marguerite Bay, with no mixing between. The presence of a single length mode at Charcot Island and Marguerite ... connectivity, by testing between rival hypotheses of population segregation and linkage. If independent ... , reduction in sea-ice along the WAP may lead to extinction of local populations through drastic mortality of ...
Meeting Document : WG-FSA-10/16 : Auteur(s): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
the population numbers‐at‐length. A comparison of this method and the existing age‐based CMIX/GYM ... ) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... approach that removes the problem of cohort determination. A stratified bootstrap technique (consistent ...
Meeting Document : WG-FSA-09/27 : Auteur(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)
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Precautionary, ecosystem-based management for the Antarctic krill fishery: a work in progress
Abstract: The Antarctic krill fishery is expanding at a time when the Antarctic Peninsula is ... enhance its precautionary management of the krill fishery in line with Convention objectives. This paper ... provides an update on the krill fishery; discusses the consideration of climate change in krill fisheries ... management; and addresses key aspects of krill research, ecosystem-based management, monitoring, bycatch, and ...
Meeting Document : SC-CAMLR-XXXVII/BG/17 : Auteur(s): Submitted by ASOC
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Scotia Sea Pygoscelid Penguin Tracking and Habitat Analysis Workshop
development of habitat use models over the coming year with a view to check on progress at the forthcoming 10 ... Abstract: During WG-EMM-14, it was noted that characterisation of overlap between land-breeding ... existing tracking data and developing habitat models that predict foraging habitats as functions of ... environmental variables. Consequently, in May 2015, an expert meeting was convened to consider the utility of ...
Meeting Document : WG-EMM-15/09 : Auteur(s): P.N. Trathan (United Kingdom), J.T. Hinke (USA) and B. Lascelles (BirdLife International)
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Potentially commercial invertebrates on Ob Bank: Moroteuthis ingens (Oegopsida) and Paralomis aculeata (Anomura) (Division 58.4.4)
during aimed fishery for Lepidonotothen squamifrons. At maximum, the proportion of squid in the total ... prespawning state. The squid aggregation was apparently composed of mating individuals. At has been concluded ... Abstract: The cephalopods of the Antarctic are supposed to have a very high biomass level However ... , they have not been fished nor any fishable aggregations of them detected to date in the CCAMLR ...
Meeting Document : WG-FSA-96/15 : Auteur(s): Pshenichnov, L.K.
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Educational poster on hook ingestion
them. The hooks found in albatross colonies at South Georgia in years prior to 2001/02 were of the type ... Abstract: Since the 2001/2002 season CCAMLR has recognised the importance of the high level of ... used in the regulated fishery in Subarea 48.3 (SC-CAMLRR-XXI/BG/7). In 2007 overwintering scientists at ... Bird Island, South Georgia, have noted an increase in the occurrence of hook injuries to wandering ...
Meeting Document : WG-FSA-07/20 : Auteur(s): G. Robertson (Australia)
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Note sur l'étude des effets environnementaux, spatiaux, temporels et opérationnels sur la mortalité accidentelle des oiseaux dans la pêcherie à la palangre dans les secteurs de Crozet et Kerguelen en 2003–2006
west) than at Crozet. Analyses show that a proportion of the incidental mortality can be explained by ... incidental mortality of seabirds was reduced by approximately half each year. A multivariate analysis has ... revealed that the incidental catch of white-chinned petrels and grey petrels is caused by a complex set of ... of the mortality of white-chinned petrels and grey petrels can be explained by the effects of season ...
Meeting Document : SC-CAMLR-XXVI/BG/21 : Auteur(s): Délégation française
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Research plan for toothfish in Division 58.4.4b by Shinsei maru No. 3 in 2014/15
), respectively. The stock sizes of D. eleginoides in block D is estimated at 840 tonnes only by using CPUE method ... Abstract: In this document, we revise stock status assessments of D. eleginoides in research ... recommended at the last WG-FSA meeting, although the survey for the current season has not been conducted yet ... survey design and sample size of 60 tonnes in order to further strengthen the stock assessments in the ...
Meeting Document : WG-SAM-14/14 : Auteur(s): Delegation of Japan
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Warp strike observations
• 789 large bird heavy contacts were observed, at an average rate of 3.5 heavy contacts per hour (c. v ... Abstract: This report contains an analysis of data on seabird trawl-warp strike collected by ... summer of 2004 – 2005. The aim of the work was to test a new protocol for quantifying warp-strikes and to ... probability of warp strikes occurring for small and large birds. The protocol was designed for use by non ...
Meeting Document : WG-FSA-05/40 : Auteur(s): E. Abraham (New Zealand)
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A proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2013/14 in Division 58.4.3a
improve the fit of the model. B 0 is estimated at around 1,400 tonnes and B 2013 /B 0 at around 85 ... WG-FSA 2012 and to progress on modeling tools in order to improve the estimation of current biomass ... . An update of the assessment of Dissostichus eleginoides using a CASAL model and a simple Petersen ... assessment of the stock in 2012 has been retained and updated with a small number of changes to try to ...
Meeting Document : WG-FSA-13/04 : Auteur(s): A. Rélot-Stirnemann - Submitted on behalf of France