Résultats de la recherche
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Preliminary review of Antarctic toothfish maturity in the Ross Sea
toothfish Dissostichus mawsoni caught by Russian longliners in the Ross Ross Sea of the Pacific sector in ... gonads, fecundity, and condition by Fulton are described. The criteria of assessment of maturity stages ... of ovaries, cytological indices of oocytes, and the type of toothfish oogenesis are determined. It ... was established that in the period of fishing, females and males with gonads at maturity stage III ...
Meeting Document : WG-FSA-11/27 : Auteur(s): S.V. Piyanova and A.F. Petrov (Russia)
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The fish diet of black-browed albatross Diomedea melanophrys and grey-headed albatross D. chrysostoma at South Georgia
Abstract: The fish component of the diet of black-browed and grey-headed albatrosses at South ... 1986 and 1994. Fish represented 30% and 72% by mass of the diet of black-browed albatrosses and 14% and ... 60% by mass of the diet of grey-headed albatrosses in 1986 and 1994 respectively. We determined the ... identity and quantified the contribution (by numbers, size and mass) of fish species mainly by using ...
Meeting Document : WG-EMM-96/11 : Auteur(s): Reid, K., Prince, P.A., Croxall, J.P.
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Gap analysis: comparing CCAMLR’s port state measures with those in the FAO Agreement on Port State Measures to Prevent, Deter and Eliminate Illegal, Unreported and Unregulated Fishing
Abstract: ASOC is submitting for the consideration of the Commission and of the Standing ... Committee on Implementation and Compliance (SCIC) the preliminary results of research conducted by the Pew ... Environment Group (PEG) to compare the port State measures established by ten Regional Fisheries Management ... Organizations (RFMOs) with the port State measures established by the FAO Port State Measures Agreement (PSMA ...
Meeting Document : CCAMLR-XXIX/BG/25 : Auteur(s): ASOC Observer
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Quantitative assessment of benthic fauna and assemblages in the Heard Island and McDonald Islands region
Abstract: A benthic sampling program in the Heard Island and McDonald Islands (HIMI, CCAMLR ... Statistical Division 58.5.2) region was undertaken by the Australian Antarctic Division (AAD) from 2003 to ... 2008. Quantitative samples collected during three cruises by the fishing vessel Southern Champion from ... eleven geographic areas, using either a beam trawl or benthic sled, provide the most comprehensive ...
Meeting Document : WG-EMM-10/25 : Auteur(s): T. Hibberd, D.C. Welsford, A.J. Constable, K. Moore and S. Doust (Australia)
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Research plan for the 2017/18 exploratory longline fishery of D. mawsoni in Subarea 48.6 by South Africa and Japan
Abstract: South Africa and Japan made the next season’s (2017/18) research plan in Subarea 48.6 ... using the latest CCAMLR C2 and Observer data. We have used extracted data provided by CCAMLR secretariat ... on 10 th May, 2017. The estimated median stock size in research block 48.6_2, 48.6_3, and 48.6_4 was ... 5657.54, 5162.26, and 8211.25 tonnes, respectively, in Chapman method considering tags released in the ...
Meeting Document : WG-SAM-17/03 : Auteur(s): Delegations of Japan and South Africa
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... ice zone. We use sea ice concentration data from 2002-2017 that cover the wider Weddell Sea to ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ... by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ...
Meeting Document : WG-SAM-18/01 : Auteur(s): H. Pehlke, K. Teschke and T. Brey
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Acquiring a ‘base datum of normality’ for a marine ecosystem: the Ross Sea, Antarctica
Abstract: The Ross Sea Shelf Ecosystem (RSShelfE) offers the last chance to understand ecological ... oceans the systems used for understanding ecological processes and fishery effects all have lacked ... researchers who currently investigate open-ocean systems. Herein, the importance of top-down forcing in ... pelagic and neritic marine ecosystems is reviewed with concrete evidence given for its existence in the ...
Meeting Document : WG-EMM-04/20 : Auteur(s): D. Ainley (USA)
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Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... affects the Antarctic marine ecosystem as a whole. We have assessed variability in krill recruitment and ... ) determined from sea level pressure differences across the Drake Passage, sea ice cover, and ozone depletion ... . We found a significant positive correlation between krill recruitment in the Antarctic Peninsula area ...
Meeting Document : WG-EMM-99/52 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)
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Diet and foraging effort of Adélie penguins in relation to pack-ice conditions in the southern Ross Sea
Abstract: We investigated the diet and aspects of foraging effort among Adélie Penguins ... Pygoscelis adeliae breeding at three colonies on Ross Island, in the southwestern Ross Sea-- Capes Royds ... , Bird and Crozier-- during the chick provisioning period of three austral summers, 1994-95, 1995-96 and ... 1996-97. During the study period, pack-ice cover differed in waters offshore of these colonies, by ...
Meeting Document : WG-EMM-98/15 : Auteur(s): D.G. Ainley (USA), P.R. Wilson, K.J. Barton (New Zealand), G. Ballard, N. Nur (USA) and B. Karl (New Zealand)
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DEMOGRAPHIC STUDIES OF ANTARCTIC KRILL IN THE SOUTH ORKNEY ISLANDS AREA 2009, FIELDWORK AND PRELIMINARY RESULTS
(Euphausia superba) fishery with the vessel “ Saga Sea ” in the South Orkney Islands area. We present ... preliminary results regarding krill demography from the sampling period in January-March, 2009. Total body ... % adult males and ~64% adult females (overall adult sex ratio: 1:4). The proportion of immature krill was ... similar throughout the study period; whereas the proportion of males decreased and the female proportion ...
Meeting Document : WG-EMM-09/10 : Auteur(s): B.A. Krafft and G. Skaret (Norway)