Résultats de la recherche
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Demersal longlines with integrated weight: a preliminary assessment of sink rates, fish catch success and operational effects
. No operational effects of using IW lines were evident during the trial. IW longlines containing 50 g ... lines with weigh integrated into the rope fibres. The sink rates to 15 m depth of 9 mm demersal ... attached weights (6 kg/49 m) in the New Zealand ling fishery. Longlines with 0 g/m (unweighted), 25 g/m, 50 ... 0.353 m/s, respectively. The longline with externally attached weights sank at 0.32 m/s. IW longlines ...
Meeting Document : WG-FSA-02/22 : Auteur(s): G. Robertson (Australia), M. McNeill, B. King (New Zealand) and R. Kristensen (Norway)
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Long-term observations from Antarctica demonstrate that mismatched scales of fisheries management and predator–prey interaction lead to erroneous conclusions about precaution
that can help conserve marine predators. Uncertainty about the impacts of fisheries removals on ... dependent predators bolsters this perspective, but consideration of the spatio-temporal scales over which ... are as precautionary as presumed. Antarctic krill are targeted by the largest fishery in the Southern ... penguin performance are predicted to be below the long-term average with a probability of 0.77. Catch ...
Meeting Document : WG-EMM-2019/11 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss
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Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators
Abstract: The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... monitoring programme. We examined the mechanistic relationships between, and patterns of inter-annual ... included foraging performance, offspring survival, offspring mass, the contribution of Antarctic krill ... Euphausia superba to the diet, and per capita reproductive performance (PRP: the product of offspring ...
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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Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2018/19 by Japan, South Africa and Spain
2013 to enhance data collection and analysis in the Subarea 48.6. In the last WG-SAM Spain has proposed ... to join the former proposal in order to contribute to the data acquisition and to speed up the ... integrated assessments of the D.mawsoni stock in this subarea. The Working Group recommended that Spain ... should coordinate its research efforts with Japan and South Africa and encouraged the submission of a ...
Meeting Document : WG-FSA-18/34 : Auteur(s): Delegations of Japan, South Africa and Spain
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Preliminary Results of a Bottom Trawl Survey Around Elephant Island in May/June 1986
only observed in N. c. neglecta, whereas very little or no spawning was evident for N. rossii, C ... of C. gunnari and Ch. rastrospinosus no major changes took place from February 1985 to May/June 1986 ...
Meeting Document : WG-FSA-86/01 : Auteur(s): K.-H. Kock (FRG)
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
while at shallower layer (20-50 m) at night. In the offshore foraging areas krill showed no diurnal ... . 2-3 km in horizontal distance) of higher densities (≥250g/m2). In the inshore foraging areas krill ... showed a diurnal vertical migration, tending to be at deeper depth range (50-100 m deep) in the day time ... vertical migration, staying close to the surface throughout the day. As for body size and maturity of krill ...
Meeting Document : WG-KRILL-92/27 : Auteur(s): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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Major fishery events in Kerguelen Islands: Notothenia rossii, Champsocephalus gunnari, Dissostichus eleginoides – current distribution and status of stocks
Abstract: The large-scale trawl exploitation targeting virgin stocks of marbled notothenia ... (Notothenia rossii) off the Kerguelen Islands occurred after the discovery by the Soviet Union scouting ... fishing fleet of the fishing grounds in the early 1970’s. The fishery shifted to icefish (Champsocephalus ... gunnari) and grey notothen (Lepidonotothen squamifrons) when overexploitation on the shelf and surrounding ...
Meeting Document : WS-MPA-11/P04 : Auteur(s): G. Duhamel, P, Pruvost, M. Bertignac, N. Gasco and M. Hautecoeur
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e-sc-xxvi-a5.pdf
... km from the slope fisheries in SSRUs 881H, 881I and 881K to grounds off Terra Nova Bay and Ross ... from excellent, where the tag number could easily be identified, to poor where no details could be ... tagged toothfish at the specified rate’. Biological parameters 3.61 No new biological parameter ... provided in WG-FSA-07/12. The Working Group noted that no variance estimates were provided in association
application/pdf attached to:WG-FSA-07Meeting Report : WG-FSA-07
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Beach debris survey Signy Island, South Orkney Islands, 1998/99
Abstract: The ninth annual beach debris survey was carried out at Signy Island, South Orkney ... Islands during the 1998/99 austral summer. Debris was cleared each month between November and March from ... three study beaches. The debris was counted, measured and classified by type, material, mass and size ... categories. A total of 83 items weighing 12.96 kg was collected. The number of items recovered was the ...
Meeting Document : CCAMLR-XVIII/BG/7 : Auteur(s): Delegation of the United Kingdom
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Informations scientifiques à la base de la proposition de Système représentatif d'aires marines protégées de l'Antarctique de l'Est
transcription errors were in relation to BANZARE Bank inside the Planning Domain. No changes to the text have ... been made. This paper summarises the scientific background to the proposed East Antarctica ... Representative System of Marine Protected Areas (EARSMPA), including why the EARSMPA will contribute to the ... Commission achieving the objectives of CCAMLR in Article II, in both conservation and in science relevant to ...
Meeting Document : SC-CAMLR-IM-I/10 Rev. 1 : Auteur(s): Delegations of Australia, France and the European Union