Résultats de la recherche
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The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
those of 2011 and about one and a half times higher than the long-term average. Champsocephalus gunnari ... RSTS were generally high in comparison with previous years, with the total fish catch being twice as ... ), anemones and corals. Catches of individual taxa were generally much lower than in previous years, except ... of fish, 1095 pairs of otoliths collected and 524 toothfish were tagged. Author(s): G.B. Nowara and ...
Meeting Document : WG-FSA-12/25 : Auteur(s): G.B. Nowara and T. Lamb (Australia)
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Towards the development of an assessment of stock abundance for Subarea 88.2 SSRUs 88.2C–G
next 2–3 years) it be made mandatory for vessels to complete all of their sets inside one or more of ... could be relaxed in future years once sufficient tags have been recaptured to carry out an assessment of ... . Author(s): S.M. Hanchet and S.J. Parker (New Zealand) Title: Towards the development of an assessment ...
Meeting Document : WG-FSA-14/59 : Auteur(s): S.M. Hanchet and S.J. Parker (New Zealand)
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Dietary segregation of krill-eating South Georgia seabirds
Abstract: The diets of six of the main seabird species (two petrels, two albatrosses, two ... performance was indicative of a year of good availability of krill around South Georgia. In such circumstances ... success and information on diet in 5-10 other years suggest that in 1986 seabird diet and reproductive ... of dietary segregation. Author(s): Prince, P.A., Croxall, J.P., Reid, K. Title: Dietary segregation ...
Meeting Document : WG-EMM-97/15 : Auteur(s): Prince, P.A., Croxall, J.P., Reid, K.
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Diet and foraging effort of Adélie penguins in relation to pack-ice conditions in the southern Ross Sea
were consumed predominantly in a year of heavy pack-ice cover; more adult krill were consumed in two ... years when pack ice was sparse. Foraging trip duration differed by colony, season and year and was ... colony, seasons and year. Diet differed among colonies only slightly. The fish Pleuragramma antarcticum ... was the most important prey, especially during years or periods within years when little pack ice was ...
Meeting Document : WG-EMM-98/15 : Auteur(s): D.G. Ainley (USA), P.R. Wilson, K.J. Barton (New Zealand), G. Ballard, N. Nur (USA) and B. Karl (New Zealand)
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Determination of a statistically based survey area suitable for hydroacoustic stock assessment of Euphausia superba in the Elephant Island, King George Island, Bransfield Strait area
-series of data from 1981, 1984 and 1978-1989 permitted resolution of inter-year differences in standing ... stock. The two units of sub-area within the site exhibit different patterns of annual distribution, but ... relatively uniform from year to year. Using only sub-area biomass leads to an ambiguous interpretation of the ... data as to whether high or law standing stock is due to low production (ie. "good" year vs ...
Meeting Document : SC-CAMLR-VIII/BG/32 : Auteur(s): Delegation of USA
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Performance of an acoustic sonde design
is widely recognized. At a U.S. GLOBEC workshop in 1991, one of the considered problems was measuring ... heat generation in ceramic elements, isotropic ambient noise, and detection threshold of 20 dB. Target ... a volumetric distribution of scatterers is similarly treated. Author(s): Foote, K.G. Title ...
Meeting Document : WG-EMM-95/09 : Auteur(s): Foote, K.G.
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Fishes caught along with the Antarctic krill in the vicinity of the South Georgia Island during the austral winter months of 1992
found in 20 trawl catches. Among by-catch fishes, juvenile Lepidonotothen larseni was the most abundant ... Champsocephalus gunnari ranging 80.5 to 88.3mm of SL and one adult specimen of Electrona antarctica (72.1mm of SL ... ) in comparison with some data reported previously. Author(s): T. Iwami (Japan) Title: Fishes caught ...
Meeting Document : WG-KRILL-93/51 : Auteur(s): T. Iwami (Japan)
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A life table for female Antarctic fur seals breeding at Cape Shirreff, Livingston Island
and pregnancy of adult females (aged by cementum annuli) were used to estimate age-specific survival ... Abstract: Mark-resight data were analysed for five cohorts (1997-2001) to estimate age-specific ... juvenile survival, age at first reproduction, and resight probabilities. Longitudinal histories of presence ... -2005. These data are used to construct an age-dependent life table for female fur seals breeding at ...
Meeting Document : WG-EMM-06/39 : Auteur(s): M.E. Goebel, B.I. McDonald, J.D. Lipsky (USA), V.I. Vallejos, R.A. Vargas, O. Blank (Chile), D.P. Costa (USA) and N.J. Gales (Australia)
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WG-FSA-00
V.L. Senioukov (Russia) WG-FSA-00/2 List of participants WG-FSA-00/20 Biological features of the ... of the skate by-catch from around South Georgia from one vessel in the 2000 longline toothfish season ... -00/64 Performance assessment and performance improvement of two underwater line setting devices for ... (France) WG-FSA-00/30 Seabird by-catch in the Patagonian toothfish longline fishery at the Prince Edward ...
Meeting
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Age, growth and size at sexual maturity of Macrourus carinatus from the CCAMLR fisheries in division 58.5.2
samples collected during two research voyages to Heard and McDonald Islands (Division 58.5.2) in 1992 and ... evident in the length-weight relationship from the two regions. Otolith and body size relationships were ... Abstract: Estimates of age and growth were determined from 156 Macrourus carinatus otolith ... 1993. The estimated range of ages was 4 – 25 years. von Bertalanffy growth parameters were calculated ...
Meeting Document : WG-FSA-02/48 : Auteur(s): E.M. van Wijk, R. Williams and A.J. Constable (Australia)