Search results
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A life table for female Antarctic fur seals breeding at Cape Shirreff, Livingston Island
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 ... and pregnancy of adult females (aged by cementum annuli) were used to estimate age-specific survival ... . These data are used to construct an age-dependent life table for female fur seals breeding at Cape Shirreff ...
Meeting Document : WG-EMM-06/39 : Author(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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Acoustic data analysis and models of krill spatial distribution
biomass estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales ... . The computed frequency distribution of krill biomass is bimodal and appears to be the mixture of two lognormal ... distributions. These two distributions may correspond to the between and within patch biomass. These results ... estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller ...
Meeting Document : SC-CAMLR-VII/BG/25 : Author(s): United States of America
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Krill catch distribution in relation to predator colonies 1987 to 1992
is similar to that seen for other years, with 70% of the total catch from Subarea 48.1 being taken within 100 ... years. It is estimated that the catch in the critical period-distance was equal to 12% and 15 ... % of the total exploitation of krill in these two subareas respectively. Author(s): Secretariat Title: Krill ... to that seen for other years, with 70% of the total catch from Subarea 48.1 being taken within 100 km ...
Meeting Document : WG-KRILL-93/10 : Author(s): Secretariat
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A proposal to improve observer safety: independent two-way satellite communication devices and personal lifesaving beacons
of the CCAMLR System of Scientific Observation (SISO) to require that observers be equipped with independent two ... Title: A proposal to improve observer safety: independent two-way satellite communication devices ... and personal lifesaving beacons Microsoft Word File: e-cc-xxxvii-20.docx Approval: Approved Secretariat ... System of Scientific Observation (SISO) to require that observers be equipped with independent two-way ...
Meeting Document : CCAMLR-XXXVII/20 : Author(s): Delegation of the USA
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Effect of a shore-based sampling program on Notothenia coriiceps populations
of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the same last summer at two close ... summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the same last summer ... to an intensive sampling effort carried out at one specific site. Author(s): R. Casaux and E. Barrera-Oro ... of the proportion of larger fish in the population, but related to an intensive sampling effort carried out at one ...
Meeting Document : WG-FSA-99/24 : Author(s): R. Casaux and E. Barrera-Oro (Argentina)
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New photo-identification catalogues from Crozet and Kerguelen Islands
for this issue. One of the key point to understand the process of depredation is to use photo-identification ... . One of the key point to understand the process of depredation is to use photo-identification, pictures ... concern for fishery. Killer whale and sperm whales are the two odontocetes species mainly responsible ... for fishery. Killer whale and sperm whales are the two odontocetes species mainly responsible for this issue ...
Meeting Document : WG-FSA-15/71 : Author(s): P. Tixier, N. Gasco and C. Guinet (France)
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Results of the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in the 2013/14 season
and 58.4.1C SSRUs. A prospective estimation of the local biomass (B LOC) of one localized area ... models. The IEO is starting the process of reading otoliths with ageing purposes, data to be added ... for ageing purposes are also presented. Author(s): R. Sarralde, L.J. López-Abellán and S. Barreiro (Spain ... and 58.4.1C SSRUs. A prospective estimation of the local biomass (BLOC) of one localized area ...
Meeting Document : WG-SAM-14/12 Rev. 1 : Author(s): R. Sarralde, L.J. López-Abellán and S. Barreiro (Spain)
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Fishes in pelagic catches in the vicinity of the South Shetland Island during the 6th Antarctic expedition of rv Kaiyo Maru, 1990/1991
two adults (one specimen of Gobionotothen gibberifrons and one channichthyid fish- specimen lost ... to 50.9ram (average 46.8mm; mean 46.6mm). Among the notothenioid fishes collected, only two adults (one ... specimen of Gobionotothen gibberifrons and one channichthyid fish - specimen lost on board) were included ...
Meeting Document : WG-KRILL-93/50 : Author(s): T. Iwami, T. Ichii, H. Ishii and M. Naganobu (Japan)
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Information on the status of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in the lower South Shetland Islands derived from a long-term monitoring program (1983–2006) at Potter Cover
of twenty four years, and at Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003 ... showed an increase in years 2002-2003, whereas G. gibberifrons was absent in the catches. These trends ... of the stocks of these two fish species was observed, even more than two decades after the end of the commercial ... years, and at Harmony Cove, Nelson Island, in the austral summers from 2001 to 2003. The decline ...
Meeting Document : WG-FSA-06/25 : Author(s): E.R. Barrera-Oro and E.R. Marschoff (Argentina)
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) in the 2005/06 season
for the Lazarev Sea. Recruitment indices were calculated for one-year-old (R1) and two-year-old krill (R2 ... for the Lazarev Sea. Recruitment indices were calculated for one-year-old (R1) and two-year-old krill (R2 ... observed in the catches. Spatial distribution of krill density and size/age classes is discussed ... observed in the catches. Spatial distribution of krill density and size/age classes is discussed ...
Meeting Document : WG-EMM-06/10 : Author(s): V. Siegel (Germany)