Resultados de la búsqueda
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Method of age determination for Antarctic toothfish (Dissostichus mawsoni)
Abstract: This work is based on material from Antarctic toothfish, collected in the Ross Sea from ... December 2004 to March 2005 on the longliner “Volna”. Age was determined for 364 individuals. Currently ... widely applicable "the break and burn method" was used in the present work (Chilton, Beamish ... , 1982; Penttilla, Dery, 1988). According to the method, otolith is broken into two parts across the core ...
Meeting Document : WG-SAM-12/18 : Autor(es): E.N. Kyznetsova, A.F. Petrov and V.A. Bizikov (Russia)
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Penguin monitoring via remote sensing
Abstract: Picking up the calling of the ATCM XXXIV to the Treaty Parties to intensify their ... the Antarctic, Germany currently carries out a feasibility study on penguin monitoring using such ... techniques. Additionally, CEP representatives and scientists discuss on an informal level the need and the ... general possibilities of a penguin monitoring in the Antarctic Treaty area based on remote sensing ...
Meeting Document : WG-EMM-12/71 : Autor(es): H. Herata and F. Hertel (Germany)
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Propuesta de modificación de la Medida de Conservación 31-02
Abstract: The Republic of Korea proposes that vessels that have received a fishery closure notice ... are required to immediately acknowledge the receipt of such a notice, and the Secretariat alerts the ... flag state if such acknowledgement is not received within a specific time frame to be agreed by the ... Commission. The amendment has been made as paragraph 1bis. The Republic of Korea believes that this new ...
Meeting Document : CCAMLR-XXXVII/33 : Autor(es): Delegation of the Republic of Korea
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A generalized discriminant for sexing fulmarine petrels from external measurements
birds to predict the sex of unknown individuals in field studies. Geographic variation in size and shape ... often limits the predictive value of a discriminant function to the population from which it was derived ... , Daption capense; and Snow Petrel, Pagodroma nivea) assigned 81 to 98% of birds in the samples to the ... correct sex, but the validity of each discriminant applied to alternative populations remained ...
Meeting Document : WG-CEMP-94/24 : Autor(es): J.A. van Franeker and C.J.F. ter Braak (The Netherlands)
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AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)
January 2007. A total of 218 specimens were selected for the study, consisting of 120 females and 98 males ... . The age of fish was estimated by counting annuli on transverse sections obtained by grinding and ... polishing whole otoliths embedded in epoxy resin in moulds. The precision of age estimates between readings ... was tested applying both the average percent error (APE) and the coefficient of variation (CV). The ...
Meeting Document : WG-FSA-08/33 : Autor(es): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)
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Energetics of diving in macaroni penguins
the mass-specific rate of oxygen consumption (VO2) while diving and investigation of the physiological ... adjustments that might facilitate the diving behaviour observed in this species. In common with other diving ... accounted for 36% of the variation in dive duration. When VO2 was calculated for dives of different ... durations, 95.3% of dives measured were within the calculated aerobic dive limit (cADL) for this species ...
Meeting Document : WG-EMM-03/39 : Autor(es): J.A. Green, P.J. Butler, A.J. Woakes and I.L. Boyd (United Kingdom)
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Unusual breeding by seabirds at Marion Island during 1997/98
species of seabirds capable of foraging over wide areas and for a tern. The number of king penguin ... Aptenodytes patagonicus chicks surviving to the start of spring in 1997 was considerably more than previously ... of northern giant petrels. Conversely, for two seabirds that feed close to the island, gentoo penguin ... breeding season. Gentoo penguins initiated breeding later than usual and fledged few chicks. The number of ...
Meeting Document : WG-EMM-03/13 : Autor(es): R.J.M. Crawford, C.M. Duncombe Rae, D.C. Nel and J. Cooper (South Africa)
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
and ecologically very similar, have very similar diet and breed sympatrically in the Scotia Arc from ... the South Sandwich Islands to the Antarctic Peninsula. To investigate how these two species co-exist ... , their foraging distribution and diet were studied during the chick-rearing period at Signy Island, South ... Orkney Islands during the breeding seasons of 2000 and 2001. Satellite tracking data from of 19 Adélie ...
Meeting Document : WG-EMM-02/15 : Autor(es): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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Solutions to seabird by-catch in Alaska’s demersal longline fisheries
and 2000) in 2 major Alaska demersal longline fisheries: the Gulf of Alaska /Aleutian Island ... Individual Fishing Quota fishery for sablefish and halibut and the Bering Sea catcher-processor longline ... conditions. We report the results of experimentally rigorous tests of seabird bycatch deterrents on the local ... the most comprehensive solution. Paired streamer lines successfully reduced seabird bycatch in all ...
Meeting Document : WG-FSA-01/35 : Autor(es): E.F. Melvin, J.K. Parrish, K.S. Dietrich and O.S. Hamel (USA)
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LIFE HISTORY BUFFERING IN ANTARCTIC MAMMALS AND BIRDS AGAINST CHANGING PATTERNS OF CLIMATE AND ENVIRONMENTAL VARIATION
Abstract: The consequences of warming for Antarctic long-lived organisms depend on their ability ... interannual variation in fitness. These species maximise fitness by keeping a low inter-annual variance in the ... survival of adults and in their propensity to breed annually, which are the vital rates that influence most ... the variability in population growth rate (λ). All these species have been able to buffer these rates ...
Meeting Document : WG-EMM-08/P05 : Autor(es): J. Forcada, P.N. Trathan and E.J. Murphy