Search results
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Sexing of adult Adélie penguins by discriminant analysis of morphometric measurements
to determine the sex of Adélie penguins. A sample of 46 adult birds was taken for measurement from the breeding ... population at Stranger Point (King George/25 de Mayo Is., South Shetland Islands). The sex of each bird had ... been determined earlier by means of observing the birds' breeding behaviour (first incubation ... ;lie penguins. A sample of 46 adult birds was taken for measurement from the breeding population ... to determine the sex of Adelie penguins. A sample of 46 adult birds was taken for measurement from ... of each bird had been detennined earlier by means of observing the birds' breeding behaviour (first ... techniques. • Observation of birds' behaviour - Sladen, 1958 (Adelie penguins, Pygoscelis adeliae ... OF THE TECHNIQUE A sample of 46 adult birds was used for the selection of appropriate morphometric variables ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 543–549 : Author(s): Scolaro, J.A., Z.B. Stanganelli, H. Gallelli and D.F. Vergani
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
Road Cambridge CB3 0ET United Kingdom Email – sih@bas.ac.uk A. Atkinson Plymouth Marine ... Road Cambridge CB3 0ET United Kingdom B.A. Krafft, O.R. Godø and G. Skaret Institute of Marine ... Introduction Krill are highly abundant marine crustaceans, some species of which are fished for various prod ... for the Conservation of Antarctic Marine Living Resources (CCAMLR). Antarctic krill is a major food source for many ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Author(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins
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Australian research on Antarctic bird and seal diets
Paper Title: Australian research on Antarctic bird and seal diets Abstract / Description: Many ... Australian research on Antarctic bird and seal diets ... BIRD AND SEAL DIETS R. Williams Abstract Many data on the diets of important vertebrate predator ... Australia has been conducting research on the diets of Antarctic birds and seals since 1982 ... 1982 Source of material: Stomach contents of 17 birds shot at sea Reference: Montague (1984) Mean ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 231-249 : Author(s): Williams, R.
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A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures
Paper Title: A possible framework in which to consider plausible models of the Antarctic marine ... in a simulation framework, using plausible models of the Antarctic marine ecosystem. This paper develops ... A possible framework in which to consider plausible models of the Antarctic marine ecosystem ... of candidate management procedures in a simulation framework, using plausible models of the Antarctic marine ... (2005): 99–117 99 A POSSIBLE FRAMEWORK IN WHICH TO CONSIDER PLAUSIBLE MODELS OF THE ANTARCTIC MARINE ... models of the Antarctic marine ecosystem. This paper develops a framework for erecting such models ... proposées dans une structure de simulation au moyen de modèles plausibles de l’écosystème marin de ... procedures. Plausible com- puter simulation models of the Antarctic marine ecosystem are to be developed ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 99–117 : Author(s): Constable, A.J
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Operational interactions of sperm whales and killer whales with the Patagonian toothfish industrial fishery off southern Chile
Interactions between marine mammals and Patagonian toothfi sh (Dissostichus eleginoides) fi sh- ery operations ... of marine mammals on the fi shing yield has not yet been assessed. Current knowledge indicates that killer ... marine mammals and the industrial and artisanal Patagonian toothfi sh fi shery in southern Chile (39ºS ... –57ºS). The specifi c objectives of this investigation were: (i) to deter- mine the marine mammal ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 127–140 : Author(s): Hucke-Gaete, R., C.A. Moreno and J. Arata
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Environment–krill relations in the South Georgia marine ecosystem
Paper Title: Environment–krill relations in the South Georgia marine ecosystem Abstract ... Environment–krill relations in the South Georgia marine ecosystem ... RELATIONS IN THE SOUTH GEORGIA MARINE ECOSYSTEM P.P. Fedoulov Atlantic Research Institute of Marine ... , Madingley Road Cambridge CB3 OET, United Kingdom K.E. Shulgovsky Atlantic Research Institute of Marine ... Marine Ecosystem For the eastern area of the Scotia Sea around South Georgia, it has been suggested ... Relations in South Georgia Marine Ecosystem produce monthly mean values for the period 1979 to 1991 along ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 13–30 : Author(s): Fedoulov, P.P., E. Murphy and K.E. Shulgovsky
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The foraging range of Adélie penguins at Béchervaise Island, Mac. Robertson Land, Antarctica, and its overlap with the krill fishery
determined by satellite tracking using the ARGOS system. Birds were tracked over four foraging trips (two ... females and two males) throughout January 1992 when birds were feeding chicks. Most birds made foraging ... . Birds feeding chicks also made journeys of one to two days ranging up to 12 km after 17 January when ... been the subject of a fishery, occur along the shelf break zone where the birds were foraging ... being packaged by Sirtrak in New Zealand. The number of satellite passes capable of detecting the PTTs ... by satellite tracking using the ARGOS system. Birds were tracked over four foraging trips (two females ... and two males) throughout January 1992 when birds were feeding chicks. Most birds made foraging trips ... to the continental shelf break (1 000 m isobath) approximately 110 km distant at its closest point. Birds feeding ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 337–344 : Author(s): Kerry, K.R., J.R. Clarke and G.D. Else
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Estimating optimal observer coverage in the Antarctic krill fishery
–184. Hilborn, R. and M. Mangel. 1997. Incidental catch in fisheries: seabirds in the New Zealand ... observer programs operated by the National Marine Fisheries Service of the USA (Barbeaux et al., 2005 ... , the interaction of the gear with fish, birds and seals, sampling protocols for krill length, sex and matu- rity ... and interactions with birds and seals. Only 1 813 hauls have been sam- pled for krill biological parameters ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 139–154 : Author(s): Agnew, D.J., P. Grove, T. Peatman, R. Burn and C.T.T. Edwards
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Low breeding success of the Adélie penguin at Béchervaise Island in the 1998/99 season
all chicks died of starvation), when smaller meals were delivered and birds foraged further offshore ... all chicks died of starvation), when smaller meals were delivered and birds foraged further offshore ... , packaged by Sirtrack (New Zealand) and weighing a total of 90 g. Transmissions were detected by NOAA ... of change in marine prey stocks. In: Furness, R.W. and J.J.D. Greenwood (Eds). Birds as Monitors ... ), when smaller meals were delivered and birds foraged further offshore than in this or any other season ... aim of determining whether any such changes are due to natural variation or the harvesting of marine ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 151–167 : Author(s): Irvine, L.G., J.R. Clarke and K.R. Kerry
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The effects of monitoring procedures on Adélie penguins
, Antarctica. The return rates of birds carrying bands and/or implanted electronic transponders were compared ... to investigate the contribution of bands to bird mortality and to determine rates of band and tag loss ... . There was a slight reduction in return rates of birds banded for more than one season, but no evidence of band or tag ... . No reduction in fledging rates of chicks from nests of stomach-lavaged birds was detected over two breeding ... of Ainley et al. (1983) who found that the survival rate of birds with new bands was 28% lower than ... three seasons at Bechervaise Island, Mac. Robertson Land, Antarctica. The return rates of birds ... of bands to bird mortality and to determine rates of band and tag loss. There was a slight reduction ... in return rates of birds banded for more than one season, but no evidence of band or tag loss over a single ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 155–164 : Author(s): Clarke, J. and K. Kerry