Résultats de la recherche
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Comparisons in diet between diurnal and overnight foraging chinstrap penguins at Seal Island
their diets but fish constituted 0-1 % and 14-45 % of the diet of diurnal and overnight foragers ... respectively. The highest intake of fish was observed in 1993/94 when krill abundance was very low. Calorific ... values of the estimated diet mass were 4085 kJ for diurnal foragers and 4809 kJ for overnight foragers ... ) and an overnight forager (5732 kJ) based on available input parameters. A comparison of krill in the ...
Meeting Document : WG-EMM-96/55 : Auteur(s): Hayashi, T., Ichii, T., Cameron, M.F., Miura, A., Jansen, J.K., Bengtson, J.L., Boveng, P.
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Estimating by-catch from CCAMLR data
Abstract: Quantifying the catch rates and biomass of by-catch species on CCAMLR’s fishing grounds ... is an essential component of the assessment advice prepared by WG-FSA. However, such analyses are ... problematic because the CCAMLR datasets are incomplete and have a high occurrence of ‘missing catch values’. A ... method to treat ‘missing catch values’ using estimates derived from the mean weights of by-catch species ...
Meeting Document : WG-FSA-SAM-05/4 : Auteur(s): Secretariat
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A synoptic review of energetic requirements of southern ocean krill predators
Abstract: The purpose of this paper is to synthesize information on the energetics and food ... requirements of krill predators that may be in the most direct competition with the krill fishery. These krill ... predators are the Adélie (Pygoscelis adeliae), chinstrap (Pygoscelis antarctica), gentoo (Pygoscelis papua ... ), and macaroni (Eudyptes chrysolophus) penguins and the crabeater (Lobodon carcinophagus) and Antarctic ...
Meeting Document : WG-EMM-96/19 : Auteur(s): Stansfield, A.M.
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Manual for age determination of Antarctic toothfish (Dissostichus mawsoni)
) is part of the focus of the SC-CAMLR workplan for 2010. The aim of the current work was to produce a ... manual that presents standard protocols used by the National Institute of Water and Atmospheric Research ... Limited (NIWA) for estimating age of D. mawsoni. It uses otoliths collected from the Ross Sea region and ... aims to guide researchers to maintain common procedures. This will increase the precision and accuracy ...
Meeting Document : WG-FSA-10/21 : Auteur(s): C.P. Sutton and P.L. Horn (New Zealand)
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Nine years of tag-recapture in CCAMLR Statistical Subarea 48.3 – Part I: General data characterisation and analysis
Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3. It describes the tagging procedure, the ... information gained about biology, growth and movement of Patagonian toothfish, and explains the overlap of ... tagging length distributions with those of the landed catch and survey data. The characterisation of tag ... recapture data from Subarea 48.3 shows that the tagging programme is successful in providing substantial ...
Meeting Document : WG-SAM-14/35 : Auteur(s): M. Soeffker, C. Darby and R.D. Scott (United Kingdom)
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Proposed amendments to Conservation Measure 51-06 (2014) General measure for scientific observation in fisheries for Euphausia superba
comprehensive system of Feedback management of krill fishery and to provide work on forecast of the ecosystem ... changes that has been mentioned at the Warsaw 2015 Meeting of the WG-EMM, Ukraine suggest the draft of the ... changes to CCAMLR Conservation Measure 51-06(2014) be considered in order to make the scientific ... observation system in the krill fishery mandatory. Author(s): Delegation of Ukraine Title: Proposed ...
Meeting Document : CCAMLR-XXXIV/BG/34 : Auteur(s): Delegation of Ukraine
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Draft: Krill Fishery Report 2016
Abstract: This update to the annual krill fishery report contains background of the fishery as an ... introduction to the report, an inventory of catch and SISO data up to June 2016, including incidental mortality ... of marine mammals and seabirds as well as the CCAMLR approach to management of the krill fishery ... . Monthly catch maps for the last complete fishing seasons (2015) and the current season up to May 2016 have ...
Meeting Document : WG-EMM-16/07 : Auteur(s): CCAMLR Secretariat
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Rapport du groupe de correspondance de la période d'intersession de la CCAMLR sur le financement durable pour 2016
Abstract: A summary of the work undertaken in relation to tasks identified at CCAMLR-XXXIV for ... the attention of the Intersessional Contact Group – Sustainable Financing (ICG-SF) during 2015/16 is ... presented. Key outcomes included (i) a preliminary assessment of the economic value of marine resources ... harvested by CCAMLR-managed fisheries, (ii) further consideration of the administrative component of ...
Meeting Document : CCAMLR-XXXV/09 : Auteur(s): CCAMLR Secretariat
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Mitigating killer whale depredation on demersal longline fisheries by changing fishing practices
orca) interacting with Patagonian toothfish (Dissostichus eleginoides) longliners off the Crozet ... extensive monitoring of the killer whale population allowed us to model interactions with whales, CPUE and ... time it takes for whales to reach vessels. The significant influence of five operational variables was ... detected statistically using generalized linear mixed models. The probability of interactions between ...
Meeting Document : WG-FSA-14/P03 : Auteur(s): P. Tixier, J. Vacquie Garcia, N. Gasco, G. Duhamel and C. Guinet
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Chinstrap penguins alter foraging and diving behaviour in response to krill size
changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... have fluctuated in recent years. We therefore examined the diet of chinstrap penguins at Livingston ... dives were unexpectedly deep (up to 110m) and mean nighttime depths sometimes exceeded those from the ...
Meeting Document : WG-EMM-07/11 : Auteur(s): A.K. Miller and W.Z. Trivelpiece (USA)