Search results
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Seasonal and interannual variation in foraging range and habitat of macaroni penguins Eudyptes chrysolophus at South Georgia
Abstract: In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of the macaroni ... penguin Eudyptes chrysolophus at Bird Island, South Georgia, throughout the breeding seasons of 1999 to ... between different stages of the breeding season, between sexes, between years and between individuals ...
Meeting Document : WG-EMM-02/21 Text : Author(s): K.E. Barlow and J.P. Croxall (United Kingdom)
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OCEANIC CIRCUMPOLAR HABITATS OF ANTARCTIC KRILL
growth rates and predation losses are atypically high. Emphasis on these areas has led to the current ... , with 70% of the total stock concentrated between 0o and 90oW. Within this Atlantic sector, krill are ... abundant over both shelf and ocean. At the Antarctic Peninsula, by contrast, they are found mainly over the ... inner shelf whereas in the Indian-Pacific sectors krill prevail in the ocean within 200-300 km of the ...
Meeting Document : WG-EMM-08/P04 - Abstract : Author(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Research plan for toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2013/14
Division 58.4.4 a & b. Regarding SSRU C, the stock size was estimated by using following six methods; 1 ... ) CASAL_0_IUU model, and 6) CASAL_all_IUU model. This approach was made based on the WG-FSA’s recommendation ... stating that the sensitivity run of the CASAL model should be made by using levels of IUU ranging from ... zero to all observed IUU fishing, and using constant YCS (year class strength) in SSRU C. The ...
Meeting Document : WG-SAM-13/21 : Author(s): Delegation of Japan
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Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?
Abstract: We describe the typical steps involved in demersal longline fishing operations for ... toothfish in CCAMLR fisheries and link those steps to the variables recorded as part of the CCAMLR catch and ... effort data reporting system. We then describe statistical properties of the recorded variables and how ... more difficult to evaluate given the wide range of influences that may affect recorded values for a ...
Meeting Document : WG-FSA-16/36 : Author(s): J.M. Fenaughty and K. Large
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Krill fishery report: 2007 update
Abstract: As reported to the CCAMLR Secretariat, 5 vessels from 3 Contracting Parties are fishing ... for krill in Area 48 in the 2006/07 season, and these vessels have taken 61876 t of krill to date. Two ... CCAMLR scientific observers have been deployed. The preliminary estimate of the total catch of krill for ... the season is approximately 111746 t. This compares with 106589 t of krill reported in the STATLANT ...
Meeting Document : WG-EMM-07/05 : Author(s): Secretariat
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A nonparametric algorithm to model movement between polygon subdomains in a spatially explicit ecosystem model
part of the modelling effort. In marine applications, a flow field grid describing the water movement ... usually forms the basis for movement of passive or nearly passive biomass. Grid-based advection algorithms ... are not designed to model movement on the larger scale of polygons, resulting in disproportionately ... effective algorithm to model movement at the polygon level is proposed, preserving the general properties of ...
Meeting Document : WG-EMM-06/35 : Author(s): T. Lenser and A. Constable (Australia)
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Review of CCAMLR’s partnership in FIRMS
provide high-quality global information on the monitoring and management of marine fishery resources ... . CCAMLR joined this partnership in 2006 and has contributed fishery fact sheets on the exploratory ... are planned. In 2009, the Commission requested that a review of future collaboration with FIRMS be ... contributed to the objectives of Article IX and XXIII of the Convention through the further development of ...
Meeting Document : CCAMLR-XXIX/18 : Author(s): Secretariat
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Using tag-recapture data to estimate catchability of a series of random stratified trawl surveys
Abstract: For the 2014 assessment of Patagonian toothfish (Dissostichus eleginoides) around the ... Heard Island and McDonald Islands (HIMI) in Division 58.5.2, a prior for catchability q of the random ... stratified trawl survey (RSTS) was estimated by comparing abundance estimates of the survey with abundance ... estimates calculated from the tag-recaptures data on the main trawl ground. Here, we use simulations to ...
Meeting Document : WG-SAM-15/34 : Author(s): W. de la Mare, P. Ziegler and D. Welsford (Australia)
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New Zealand-Australia Antarctic Ecosystems Voyage
Abstract: RV Tangaroa carried out a 42-day research voyage to the Ross Sea from 29 January to 11 ... March 2015. The main purpose of the New Zealand-Australia Antarctic Ecosystems Voyage (TAN1502) was to ... undertake ecological studies of Ross Sea marine foodwebs of importance to top predators. The work was ... centred on the feeding areas of cetaceans, primarily blue whales and humpback whales, and in the Ross Sea ...
Meeting Document : WG-EMM-15/56 : Author(s): R.L. O’Driscoll (New Zealand)
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Domain 1 MPA designation process: data sharing and future enhanced work
Abstract: During the last years, a large amount of information was gathered and shared in one ... unique project for the development of a representative system of MPAs in Domain 1. This process ... integrates, compiles, analyses and exposes a large amount of information, not only contributing to the best ... science available but also providing a platform for the sharing and visualization of information, further ...
Meeting Document : WG-EMM-16/73 : Author(s): M. Santos, A. Capurro and C.A. Cárdenas