Résultats de la recherche
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Notification for scientific research in 2019/20 under CM 24-01: Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
toothfish (Dissostichus mawsoni): 1) Antarctic toothfish eggs are buoyant and accumulate under sea ice. If ... true, this would retain eggs near the spawning locations under the vast sea ice extent and once broken ... patterns may be influenced by changes in sea ice or circulation patterns that affect observed recruitment ... northern Ross Sea region to test these hypotheses. The longline and plankton survey is designed to cover ...
Meeting Document : WG-SAM-18/09 : Auteur(s): Delegation of New Zealand
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Proposal for a winter longline survey of Antarctic toothfish in the northern region of Subareas 88.1 and 88.2
toothfish (Dissostichus mawsoni): 1) Antarctic toothfish eggs are buoyant and accumulate under sea ice. If ... true, this would retain eggs near the spawning locations under the vast sea ice extent and once broken ... patterns may be influenced by changes in sea ice or circulation patterns that affect observed recruitment ... northern Ross Sea region to test these hypotheses. The longline and plankton survey is designed to cover ...
Meeting Document : WG-FSA-18/40 : Auteur(s): Delegation of New Zealand
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ON THE STRATOSPHERE OZONE DISTRIBUTION ASYMMETRY POSSIBLE IMPACT ON KRILL BASED ECOSYSTEM
content distribution are continuously located over the Antarctic Peninsula and Weddell Sea area- most ... productive krill population region, and QSW maximum- in the Ross Sea area and Australian sector. We expect ... distribution over north Weddell Sea area should cause the increased ultraviolet irradiation (UVR) on sea ...
Meeting Document : WG-EMM-09/36 : Auteur(s): G. Milinevsky (Ukraine)
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Warming effects in the Western Antarctic Peninsula Ecosystem: the role of population dynamic models for explaining and predicting penguin trends
Abstract: The Western Antarctica Peninsula and Scotia Sea ecosystems appear to be driven by ... influenced by the inter-annual variability in the sea-ice extent and krill biomass. In this paper we ... abundance and sea-ice cover. Our results using population theoretical based models appears to supports the ... Gentoo penguins appear to be better explained by the “sea-ice hypothesis”. We think that proper ...
Meeting Document : WG-EMM-12/18 : Auteur(s): M. Lima and S.A. Estay (Chile)
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SOME FIELD MATERIALS ON AREA AND SEASON OF ANTARCTIC TOOTHFISH SPAWNING
Ocean and Indian Ocean sectors of the Antarctic. In the Ross Sea area the most probable areas are the ... Pacific Antarctic Ridge and the Amundsen Ridge in the Amundsen Sea area. In the Cooperation Sea area the ...
Meeting Document : WG-FSA-08/14 : Auteur(s): V. Prutko (Ukraine)
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The incidence of plastic in the diets of Antarctic seabirds
Abstract: We investigated the diets of seabirds at sea in the Antarctic from 1976 to 1988. During ... that feed below the sea surface contained little plastic, as expected; these birds live entirely on ... that the Antarctic Convergence blocks plastic debris, which is commonly found a t the sea surface in ... pack ice sweeps the sea clear of plastic. Results also suggest that floating plastic debris is not yet ...
Meeting Document : SC-CAMLR-X/BG/18 : Auteur(s): Delegation of USA
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A methodology for estimating total finfish by-catch of the Area 48 krill fishery
that is currently available, applied to data collected by Scientific Observers on the FV Saga Sea ... family for both low sea-ice and normal sea-ice years. Biological parameters for Champsocephalus gunnari ... rates in the Saga Sea krill fishery. The methodology can also provide quantitative analysis of the ...
Meeting Document : WG-EMM-12/29 : Auteur(s): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Observation on the interactions between marine mammals and mid-water krill trawl
inner-trawl observation was made using an Underwater IP Camera, while sea surface observation was ... conducted visually with the aid of a SLR Camera and a Marine Binocular. Sea surface observation in Subarea ... seal were observed at sea surface around the vessel during fishing operation, none seal by-catch was ... -filled trawl at sea surface seems to be a foraging related phenomenon. Author(s): Y. Ying, G. Fan, X ...
Meeting Document : WG-FSA-2019/60 : Auteur(s): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Testing for genetic differentiation between two size classes of the starry skate (Amblyraja georgiana)
in the catch data from the Ross Sea fisheries. We extracted DNA from A. georgiana samples from both ... size classes collected by Scientific Observers in the Ross Sea. We determined the DNA sequences of five ... among the samples of A. georgiana that were collected in the Ross Sea region, and the data did not ...
Meeting Document : WG-FSA-12/53 : Auteur(s): P. Ritchie and A. Fleming (New Zealand)
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Identification and speciation of Antarctic skates
Ross Sea and South Atlantic. However, for Bathyraja n. sp. cf. eatonii and Bathyraja maccaini in the ... Ross Sea and South Atlantic Ocean, the DNA sequence divergences are indicative of differentiation among ... species in the Ross Sea. A field key for identification of Ross Sea skates is provided. Author(s): P.J ...
Meeting Document : WG-FSA-07/27 : Auteur(s): P.J. Smith, C.D. Roberts, A.L. Stewart, M. McVeagh and C.D. Struthers (New Zealand)