Résultats de la recherche
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Distributions and predator-prey interactions of macaroni penguins, Antarctic fur seals, and Antarctic krill near Bird Island, South Georgia
. Simultaneous surveys of marine birds, Antarctic fur seals and Antarctic krill were conducted along a series of ... correlations with Antarctic krill density across a wide range of spatial scales. Because krill was abundant ... was a confounding variable. When the influences of distance and direction on predator abundance were ...
Meeting Document : WG-CEMP-93/12 : Auteur(s): G.L. Hunt, Jr (USA), D. Heinemann (USA) and I. Everson (United Kingdom)
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The incidence of plastic in the diets of Antarctic seabirds
live prey. Among species that feed a t the surface, most of which eat both live and dead organisms ... among them was a function of the degree to which their populations frequented waters outside of the ... that the Antarctic Convergence blocks plastic debris, which is commonly found a t the sea surface in ...
Meeting Document : SC-CAMLR-X/BG/18 : Auteur(s): Delegation of USA
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Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators
Southern Ocean, has been recorded annually for over two decades as part of a large marine ecosystem ... melanophris) and was a strong predictor of PRP for Antarctic fur seals, Arctocephalus gazella, and gentoo ... was a necessary but not sufficient condition for extreme (lower 10th percentile) negative anomalies ...
Meeting Document : WG-EMM-12/16 : Auteur(s): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)
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Results of scientific observation in Antarctic krill fishery in 2010/11: II. analysis of variability of krill size and fish by-catch
krill length and number of bycatch fish were analyzed by using a hierarchical Bayesian model composed of ... ) incorporated in a state-space model that separates biological process error from fishery process error and ... is no clear difference among cruises within a vessel. The uncertainty in parameter estimation is ...
Meeting Document : WG-EMM-12/67 : Auteur(s): T. Okuda and M. Kiyota (Japan)
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Population structure and connectivity of an important pelagic forage fish in the antarctic ecosystem, Pleuragramma antarcticum, in relation to large scale circulation
Abstract: Ocean circulation has been identified as a major process controlling the distribution ... ), a pelagic, neutrally buoyant notothenioid fish species, are distributed around the shelf systems of ... silverfish otoliths, and comparing the chemistry with simulated particle transport using a high resolution ...
Meeting Document : WG-FSA-12/23 : Auteur(s): J.W. Ferguson (USA)
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Proposal for continuation of Australia’s research plan for exploratory fishing for toothfish (Dissostichus spp.) in East Antarctica (Divisions 58.4.1 and 58.4.2)
rules remain to be determined for these Divisions. The 2015/16 season was the first of a three-year ... . Australia will present to WG-SAM-2016 a full report on the fishing operation, catch composition, tagging and ... measurements, tagging and aging, will be used to develop a stock assessment/s for Divisions 58.4.1 and 58.4.2 ...
Meeting Document : WG-SAM-16/09 : Auteur(s): Delegation of Australia
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Fish by-catch in the krill fishery: 2016 update
-frequency distribution and geographic provenance of the key fish taxa reported. There was a high degree of ... -catch in a 300 000 t krill fishery would be 370 t, comprising 40% Champsocephalus gunnari and 30 ... reported in the commercial krill catch data. A systematic method for observers to record fish by-catch and ...
Meeting Document : WG-FSA-16/04 : Auteur(s): CCAMLR Secretariat
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How fishing and marine protection can coexist in the Southern Ocean: An economic analysis of the Ross Sea and East Antarctic MPA proposals
the proposed MPAs will have a minimal impact on current overall catch limits for the target stocks ... biodiversity, for research, and as a baseline and comparison for monitoring the impacts of climate change. It ... is important to note that the fisheries currently operating in these waters represent a small ...
Meeting Document : CCAMLR-XXXV/BG/23 Rev. 1 : Auteur(s): Submitted by ASOC
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Proposals on standardization of toothfish resource research
bottom trawl surveys requires a standardized design of the spatial location of trawl samples and standard ... fishing gear as a data collection tool. Moreover, the use of standard fishing gear should be ... improving statistical data processing is unacceptable. For Division 58.4.1 and 58.4.2. we propose a ...
Meeting Document : WG-SAM-2019/34 : Auteur(s): S. Kasatkina
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Indicators of krill flux at various spatial-temporal based on the data of multi-year research carried out in the Scotia Sea. Comments on krill fishery management
Weddell Sea. The data obtained demonstrate that the dynamics of krill biomass in a given area is more ... of fishery indices, also to a greater degree, is a reflection of the spatio-temporal variability of ...
Meeting Document : WG-EMM-2019/58 : Auteur(s): S. Kasatkina and V. Shnar