Résultats de la recherche
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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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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)
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Modelling the impact of fishery by-catches on albatross populations
tuna longline fisheries south of 30 S, to model estimated by-catch levels and other population ... of wandering albatross (uniform between 30°S–60°S; proportional to the distribution of longline ... parameters in the model. 3. The model used two alternative assumptions about patterns of at-sea distribution ... developed a deterministic, density-dependent, age-structured model for assessing the effects of longlining ...
Meeting Document : WG-FSA-01/18 : Auteur(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)
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COLTO Depredation Workshop
the second, a 2-year project covering other toothfish fisheries. Author(s): Submitted by COLTO Title ... operational guidelines in regards to depredation. A second depredation workshop is planned for 2018, aimed at ... that were addressed in the inaugural workshop. Since the workshop, two separate post-doctoral ... depredation projects have been developed and will begin in October 2016. The first, a 4-year project covering ...
Meeting Document : SC-CAMLR-XXXV/BG/23 : Auteur(s): Submitted by COLTO
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: preliminary results of stage 1 (2012/13 season)
Spanish bottom longline system. One depletion experiments was completed in each of the SSRU surveyed ... start the depletion. A prospective estimation of the local biomass (B LOC) of the two localized areas ... and species involved. Author(s): R. Sarralde, L.J. López Abellán and S. Barreiro (Spain) Title ...
Meeting Document : WG-SAM-13/30 : Auteur(s): R. Sarralde, L.J. López Abellán and S. Barreiro (Spain)
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A photographic reference set for Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region
by New Zealand with the “sister” otoliths provided to CCAMLR for use by other Members. Two ... photographs are provided for each otolith; one of the prepared otolith surface alone, and a second with ... via the CCAMLR website for use by Members. Author(s): C. Sutton and S. Parker Title: A photographic ...
Meeting Document : WG-SAM-18/18 : Auteur(s): C. Sutton and S. Parker