Résultats de la recherche
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Preliminary modelling of potential climate-change impacts on krill and a krill-dependent predator in CCAMLR Subareas 48.1 to 48.3
affect krill resources and the marine ecosystem in Antarctic waters is critical. Previous research has ... assessed the potential consequences of these impacts for both the krill stock and its dependent predators ... using a peer-reviewed krill-predator-fishery ecosystem dynamics model. Initial results demonstrate the ... potential for projected temperature changes to negatively affect the individual weight and population ...
Meeting Document : WG-EMM-16/53 : Auteur(s): E.S. Klein, S.L. Hill, G.M. Watters and J.T. Hinke
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Perfluorinated compounds in muscle tissues of Antarctic toothfish in Division 58.4.1 and 58.4.2 of Antarctic Sea
Antarctic toothfish (n=113), and investigated accumulation patterns of PFCs in female and male muscles. The ... ng/g ww of median concentration. The main compounds among PFCs were perfluoro-n-hexanoic acid and ... and female. The levels of PFCs in the present study are comparable to those reported in 31 fish ... species from Korean coastal waters (0.27-4.81 ng/g ww). The concentrations of Perfluoro-1-octanesulfonate ...
Meeting Document : WG-FSA-16/07 : Auteur(s): Delegation of the Republic of Korea
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Benchmarking CCAMLR
cohesive structure and apportioning of their work schedules. The discussions to be held at the 2016 ... the opportunity to develop a CCAMLR stock assessment and advice benchmarking process. The need for ... (paragraph 10.4). However, due to time constraints in 2014 the circle was not completed and the advice from ... WG-SAM and WG FSA has not been reviewed by Scientific Committee. Author(s): Delegation of the United ...
Meeting Document : SC-CAMLR-XXXV/BG/31 : Auteur(s): Delegation of the United Kingdom
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Update of ongoing work on age and growth of Antarctic toothfish (Dissostichus mawsoni) (2013-14 season) from Division 58.4.1 by Spain
Abstract: We present preliminary results on age and growth of Dissostichus mawsoni for the second ... season (2013/14) of the Spanish research fishing in the 58.4.1 Division obtained for growth rings on ... otolith readings. It is included the age-length key and growth parameters estimates by sex. Growth ... results are very similar to those reported previously for the first season (2012/13) although they differ ...
Meeting Document : WG-FSA-16/58 : Auteur(s): L.J. López-Abellán, M.T.G. Santamaría, R. Sarralde and S. Barreiro
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Suivi de la pêche dans les écosystèmes marins vulnérables (VME) de la zone de la Convention CAMLR
significant adverse effects of fishing on vulnerable marine ecosystems (VMEs). The United States undertook a ... and in relevant VMEs as a step toward reviewing the effectiveness of relevant conservation measures in ... longline fishing gear was set inside a VME Risk Area. These findings raise questions about the level of ... , the United States wishes to provide recommendations increasing the effectiveness of measures to ...
Meeting Document : CCAMLR-XXXVII/19 : Auteur(s): Delegation of the USA
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Foraging dynamics of macaroni penguins (Eudyptes chrysolophus) at South Georgia during brood-guard
determine how they ranged from their colonies during the early part of their breeding season at a time when ... they are constrained to return to their chick on a near-daily basis. The principal objectives of this ... , whether animals range evenly over the available area. Results show that animals did not range evenly, that ... waters influenced by major oceanographic features such as the southern Antarctic Circumpolar Current ...
Meeting Document : WG-EMM-06/P4 : Auteur(s): P.N. Trathan, C. Green, J. Tanton, H. Peat, J. Poncet and A. Morton (United Kingdom)
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ABUNDANCE AND BIOLOGICAL INFORMATION ON TOOTHFISH IN DIVISION 58.4.4a & b BY SHINSEI MARU NO. 3 IN 2007/08 SEASON
Abstract: A survey was conducted in order to collect information for the stock status and various ... , Shinsei Maru No. 3, from July 23 to September 27, 2008. The survey was undertaken in two Phases (Phase 1 ... % in numerical number and 90-96 % in weight to the total samples in SSRUs. Mean CPUE of toothfish in ... for the Division was estimated to be 11.0 indiv. / 1,000 hooks and 108.8 kg / 1,000 hooks. With the ...
Meeting Document : WG-SAM-09/10 : Auteur(s): K. Taki, T. Ichii, M. Kiyota and S. Kawahara (Japan)
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IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
was dominated by krill, Euphausia superba and by the amphipod Themisto gaudichaudii. Smaller (younger ... -2004) the proportion of krill in the diet, stomach fullness and fish condition (indicated by length ... -weight relationships) were significantly lower than in the other summer seasons. The poor krill season ... was followed by a large reduction (> 80%) in the estimated annual biomass of C. gunnari the ...
Meeting Document : WG-FSA-08/29 : Auteur(s): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)
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Interactions between cetaceans and long-lining operations for Patagonian toothfish Dissostichus eleginoides around South Georgia
interactions occured during hauling operations, both during the day and at night. Killer whales (Orcinus orca ... operations and may have been removing fish captured on the lines. Numbers of sperm whales varied with ... location; some whales with identifying masks were observed over successive lines to the south-west of South ... Georgia, but were not seen on subsequent operations to the north-west of the island. On two occasions ...
Meeting Document : WG-IMALF-94/16 : Auteur(s): J.R. Ashford (United Kingdom) and P.S. Rubilar (Chile)
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Aggregation patterns of pelagic predators and their principal prey, Antarctic krill, near South Georgia
Abstract: 1. We examine the spatial distributions of pelagic seabirds and. fur seals near South ... Georgia, and asked to what extent the distributions of these predators were influenced by the spatial ... is an explicit consideration of the separation in space between swarms of krill and aggregations of ... survey of the waters surrounding Bird Island, South. Georgia. Predator abundance was estimated visually ...
Meeting Document : WG-CEMP-93/13 : Auteur(s): R.R. Veit (USA), E.D. Silverman (USA) and I. Everson (United Kingdom)