Résultats de la recherche
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DNA barcoding highlights a cryptic species of grenadier (genus Macrourus) in the Southern Ocean
same Ross Sea region specimens classified individuals into two groups: one with 9 pelvic fin rays, pale ... recognized in the Southern Ocean and one in cold temperate to Arctic waters in the North Atlantic Ocean. DNA ... the Ross Sea region, and provisionally identified as M. whitsoni, were divided into two COI haplotypes ... M. whitsoni from the Ross Sea region provided strong evidence for two sympatric species: M. whitsoni ...
Meeting Document : WG-FSA-10/33 : Auteur(s): P.J. Smith (New Zealand), D. Steinke (Canada), P.J. McMillan, A.L. Stewart, S.M. McVeagh (New Zealand), J.M. Diaz De Astarloa (Argentina), D. Welsford and R.D Ward (Australia)
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Pursuit of polynyas in the Antarctic peninsula area
1987 was pursed from beginning on August 1 to end on October 20. The shape of the polynya changed ... observations. A typical polynya existed off the tip of the Peninsula in 1987 and 1991. In the such years, sea ... ice cover developed extensively. Inversely, the years of the narrow sea ice cover were 1988, 1989,1990 ... and 1993. In the such years, polynyas did not existed. The typical polynya (nearly 500 x 200 km) in ...
Meeting Document : WG-EMM-97/69 : Auteur(s): Kimura, N., Shibazaki, K., Matsumura, S., Naganobu, M., Okada, Y.
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IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX
following year (2005). This may have been a result of mortality of age 2+ and 3+ fish, which were more krill ... was followed by a large reduction (> 80%) in the estimated annual biomass of C. gunnari the ... significantly between years and age classes but there was little regional difference in diet. In general diet ... population biomass in 2006. Author(s): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK) Title ...
Meeting Document : WG-FSA-08/29 : Auteur(s): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)
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Joint report on exploratory fishing in Divisions 58.4.1 and 58.4.2 between the 2011/12 and 2017/18 fishing seasons
document which can be made available to Members to facilitate reporting on data collection in CCAMLR039;s ... 2018 will be submitted to WG-FSA-18. The summaries provided herein were generated using an R-Markdown ... Exploratory Fisheries. Author(s): Delegations of Australia, France, Japan, Republic of Korea and Spain Title ...
Meeting Document : WG-SAM-18/35 Rev. 1 : Auteur(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2
fishery, 99.3% of all double-tagged fish retain at least one tag after one year, and 80.2% after ten years ... at liberty of 6 years, as l = 0.014 for longline and l = 0.007 for trawl. However, this single tag ... . Author(s): P. Ziegler Title: Estimation of tag-loss rates for tagged fish in the Patagonian toothfish ...
Meeting Document : WG-FSA-17/21 : Auteur(s): P. Ziegler
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Seasonal variation in acoustic estimates of krill density at South Georgia during 2001/2002
around South Georgia in the 2001/2002 season: one in November 2001 (early); two during January 2002 ... (middle), and one in May 2002 (late). The surveys were the second in a five-year series of observations ... Antarctic Survey regularly since 1996. Krill density in November was low (5 g m-2), higher in both the two ... population dynamics in the region. Author(s): C. Goss, S.A. Grant, N. Cunningham, J.L. Watkins, P.N. Trathan ...
Meeting Document : WG-EMM-02/39 : Auteur(s): C. Goss, S.A. Grant, N. Cunningham, J.L. Watkins, P.N. Trathan, E. Murphy and K. Reid (United Kingdom)
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On dispersion of different pelagic organisms, forming Antarctic backscattering in South Sandwich subarea during January–February 2000
groups of pelagic organisms. One can reveal, basing on the results of surveying, the influence of water ... 80-90m layer, high densities of myctophid fish are observed within the whole depth range of 0-350m ... interest. Author(s): S.M. Kasatkina and A.P. Malyshko (Russia) Title: On dispersion of different pelagic ...
Meeting Document : WG-EMM-01/61 : Auteur(s): S.M. Kasatkina and A.P. Malyshko (Russia)
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Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean
-tagged seals were yearlings or subadults, and all but one were hauled out at PEI for the annual moult ... PEI, and 80 ± 4% for the simulation. Seasonal and annual absences of seals from MI violate the ... ‘homogeneity of capture’ assumption of mark–recapture models. When multiple sightings during any year are ... mortality and local migration. (Afr. J. Mar. Sci., 31 (3) (2009): 457–462) Author(s): W.C. Oosthuizen, M.N ...
Meeting Document : WG-EMM-10/P16 : Auteur(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr
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Foraging location and range of white-chinned petrels Procellaria aequinoctialis breeding in the South Atlantic
covered at night (47%) was the same. Mean (31- 34 km/h) and maximum (80 km/h) flight velocities were ... extensively. Most locations were between 30° to 55 °W and 52 °to 60 0W around South Georgia/Shag Rocks and ... substantial risk of high mortality rate in South Atlantic long-line fisheries. Author(s): S.D. Berrow, A.G ...
Meeting Document : WG-FSA-99/20 : Auteur(s): S.D. Berrow, A.G. Wood and P.A. Prince (United Kingdom)
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Are penguins and seals in competition for Antarctic krill at South Georgia?
1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... spatial separation of the Bird Island populations of these two species whilst at sea during the breeding ... population during their breeding season. For explaining the opposing population trends of the two species ... years of krill scarcity. Author(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and ...
Meeting Document : WG-EMM-02/22 : Auteur(s): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)