Результаты поиска
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Biomass abundance and distribution of fish in the Kerguelen Islands’ zone (Division 58.5.1)
Plateau. The sweep-area method was used in the range 100 and 1000 m with random stratified stations of ... Alepocephalus cf. antipodianus in the deep-sea. The data on the latest are new. The geographical and ... concentrations. Cohorts of some species (D. eleginoides, C. gunnari) were visible in some geographical sectors ... . In addition, the survey allows to define the species distributions, both commercial that the others ...
Meeting Document : WG-FSA-07/16 : Автор(ы): G. Duhamel and M. Hautecoeur (France)
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Community structure of epipelagic macrozooplankton in the Ross Sea
collected from three layers between the surface and 200 m with RMT 8m2 along the three longitudinal lines in ... located at 78°S, 175°E. Total of 13 taxa occurred at all stations and mean of 7.4 taxa were occurred in ... each sample. There was no marked difference in numbers of taxa occurred at each station and layer ... in the north of 72°S, while pteropods and euphausiids occurred besides them in the south of 72°S ...
Meeting Document : WG-EMM-07/34 Rev. 1 : Автор(ы): Y. Watanabe, S. Sawamoto, T. Ishimaru and M. Naganobu (Japan)
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Intra-annual variability in the abundance of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ krill density estimates
pattern in krill abundance was detected that recurred consistently over all 3 years. Krill densities in ... winter were predominantly low (mean = 18.7 g m-2 SD 24.3) but rose substantially by summer in each year ... statistically different (P>0.05) from estimates derived from standard ship-based krill surveys in adjacent ... periods suggesting that the mooring point estimates had relevance in a wider spatial context (ship surveys ...
Meeting Document : WG-EMM-06/25 : Автор(ы): R.A. Saunders, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein, D.G. Bone and A.S. Brierley (United Kingdom)
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... wood items, reached a peak in the period 1994-1996 at Bird Island and Signy Island, but have declined ... until recently. The number of debris items found has increased in the last season reported at Bird ... packaging materials. The level of marine debris found in Grey-headed albatross, Black-browed albatross and ...
Meeting Document : SC-CAMLR-XXIV/BG/13 : Автор(ы): Secretariat
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Interannual variation in the summer diet of Adélie penguin (Pygoscelis adeliae) at Edmonson Point
, in the Ross Sea, Antarctica, to study the feeding ecology of this species for the Commission for the ... Island in 2001. Mean diet composition varied from year to year and between the two locations in 2001 ... Edmonson Point. In the guard period, mean weight of food was lower at Inexpressible Island. Mean content of ... in stomach contents from Edmonson Point. Author(s): S. Olmastroni, F. Pezzo, I. Bisogno and S ...
Meeting Document : WG-EMM-04/38 : Автор(ы): S. Olmastroni, F. Pezzo, I. Bisogno and S. Focardi (Italy)
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Krill caught by predators and nets revisited: interpreting prey selection in proper temporal–spatial scales
problematic. In this paper we use ARGOS satellite location data from foraging female fur seals to first ... that collected only in fur seal foraging habitat. Both are compared to krill in fur seal diet. When ... in krill length frequency distributions. We suggest that fur seals are not selecting large krill ... while foraging but are instead selecting foraging locations that have larger krill in densities that ...
Meeting Document : WG-EMM-04/49 : Автор(ы): M.E. Goebel, V. Loeb, D.P. Costa, S.N. Sexton, A.R. Banks, J.D. Lipsky and A.C. Allen (USA)
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Seabird by-catch update on industrial Patagonian toothfish fishery in southern Chile
Abstract: Implementation of NPOAs requires in first place an assessment of all longline fisheries ... with presumption of occurring seabird incidental mortality. Chile took this responsibility in 2001 and ... started the NPOA-S process by estimating the seabird bycatch at the Patagonian toothfish fishery in ... determined the initiation of the NPOA to reduce seabird incidental mortality in all longline fisheries in ...
Meeting Document : WG-FSA-04/13 : Автор(ы): J. Arata, C.A. Moreno and R. Hucke-Gaete (Chile)
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Descriptive analysis of acoustic data collected during the 2003 exploratory fishery for toothfish in the Ross Sea
conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected during ... bottom echo caused by too high a ping rate. All line recordings were in water over 1000 m deep. Because ... avoided with the use of a towed acoustic system. Two types of pelagic layers were present in most acoustic ... and 800 m. Pelagic schools were also present in some recordings and these tended to occur at 150–400 m ...
Meeting Document : WG-FSA-03/28 : Автор(ы): R.L. O’Driscoll and G.J. Macaulay (New Zealand)
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Relationships between distribution of two euphausiid species and oceanographic characteristics in the Ross Sea (January–February 2000)
, devoted to study two krill species (Euphausia superba and Euphausia crystallorophias), was carried out in ... identifying main water masses and oceanographic features. Acoustic data were processed in order to distinguish ... first time a detailed description of the krill distribution in the Ross Sea area related to ... crystallorophias one. The first species was almost exclusively present in the northern area, interesting only a ...
Meeting Document : WG-EMM-02/38 : Автор(ы): A. Russo, M. Azzali, E. Biffi, G. Lanciani and E. Paschine (Italy)
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Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models
in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... mortality, age selectivity, recruitment estimates, mean weight at age) In the calculations with DPM (with ... of intensive fishery was at the level of 22-24 thousand tons. In 1989-1990 stock size increased (to ... in recent years. The trends in biomass dynamic estimated by DPM are very similar with trends from ...
Meeting Document : WG-FSA-02/78 : Автор(ы): P.S. Gasiukov and R.S. Dorovskich (Russia)
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