Resultados de la búsqueda
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Population trends and reproductive success at a frequently visited penguin colony on the western Antarctic Peninsula
to other sites and is an unlikely explanation for the precipitous decline of Adélie penguins at ... Abstract: Petermann Island (65°10'S, 64°10'W), one of the Antarctic Peninsula’s most ... frequently visited locations, is at the epicenter of a rapid shift in which an Adélie penguin dominated fauna ... is becoming gentoo penguin dominated. Over the course of five seasons, the breeding productivity of ...
Meeting Document : WG-EMM-16/P07 : Autor(es): H.J. Lynch, W.F. Fagan and R. Naveen
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Estimation of catch rate and mean weight in the exploratory Dissostichus fisheries across Divisions 58.4.1 and 58.4.2 using generalised additive models
hooks. The region around Prydz Bay is predicted have the highest catch rate of D. mawsoni and is also ... Abstract: The exploratory longline fisheries in Divisions 58.4.1 and 58.4.2 (primarily targeting ... between 2003 and 2011 enabled the development of generalised additive mixed models that were then used to ... across the region are low compared to those in other Dissostichus fisheries within the Convention Area ...
Meeting Document : WG-FSA-11/35 : Autor(es): D.C. Welsford (Australia)
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The effects of monitoring procedures on Adélie penguins
Paper Title: The effects of monitoring procedures on Adélie penguins Abstract / Description: The ... effects of flipper bands, implanted tags, gastric lavage and external instrument attachment on the ... , 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 ... flushed and no bird was used more than once. The nests of all birds flushed during chick rearing were ... . There is no evidence, therefore, that the collection of stomach samples from adult Adelie penguins ... CCAMLR Science, Vol. 1: 155-164 THE EFFECTS OF ... Highway, Kingston, Tas. 7050 Australia Abstract The effects of flipper bands, implanted tags, gastric ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 155–164 : Autor(es): Clarke, J. and K. Kerry
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CEMP cameras and satellite transmitters installation by Ukraine at the Galindez, Petermann, and Yalour Islands penguin colonies as a part of CEMP Fund projects
Abstract: In the report we inform shortly on the activity in the Ukrainian Vernadsky Antarctic ... of the CEMP projects run by USA, Argentina, Poland and Ukraine 'Establishing a CEMP Camera ... Network in Subarea 48.1' and 'Tracking the overwinter habitat use of krill dependent predators ... in 2016/17 season have been collected. Fifteen ARGOS satellite tags have been installed in the adult ...
Meeting Document : WG-EMM-17/21 : Autor(es): G. Milinevsky, I. Dykyy, D. Lutsenko, O. Savitsky, A. Simon, M. Telipska, V. Lytvynov and L. Pshenichnov
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Antarctic krill, Euphausia superba Dana, demography studies in the seas of Sodruzhestvo and Cosmonauts (Indian Ocean sector of Antarctica)
(Hosie et al., 1988) for the Prydz Bay by data for 1981-1985. Basing on long-term observations, relations ... Abstract: The materials on Euphausia superba biological state and size composition in the Indian ... Antarctic seas for the period from 1985 to 1990 are analyzed to form an opinion about its growth, life ... duration, as well as about the interannual variability in the above parameters. According to our data ...
Meeting Document : WG-KRILL-93/45 : Autor(es): E.A. Pakhomov (Ukraine)
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A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty
Paper Title: A generalised model for evaluating yield and the long-term status of fish stocks ... projection model for assessing the long-term annual yield which satisfies objectives for the maintenance of ... the spawning stock biomass in accordance with CCAMLR criteria. These specify a bound on the ... probability that the spawning biomass will become depleted to below some specified level over a specified ... , CCAMLR decided that the catch rate from any stock was no t t o exceed F,., (CCAMLR, 1987). Th i s ... . The two options should give similar results when there is no Monte Carlo integration over ... escapement from each trajectory divided by the same median, but for a period when no yield is taken (e.g. y ... MODEL FOR EVALUATING YIELD AND THE LONG-TERM STATUS OF FISH STOCKS UNDER CONDITIONS OF UNCERTAINTY ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Autor(es): Constable, A. and W.K. de la Mare
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Age Determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula Subarea (Subarea 48.1)
lower than the ones reported previously for specimens of South Bay, Palmer Archipelago. Possible reasons ... localities of the South Shetland Islands (Low I. and Potter Cove, 25 De Mayo I./King George). Samples were ... from the difficulty to differentiate false from annual checks in scales. Age determination by otolith ... cross sections proved to be the most reliable method. Mean length data at age presented here for Low I ...
Meeting Document : WG-FSA-88/15 : Autor(es): E. Barrera-Oro (Argentina)
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Cameras installation by Ukraine at the Galindez, Petermann and Yalour Islands penguin colonies – CEMP Fund project ‘Establishing a CEMP Camera Network in Subarea 48.1’
Abstract: In the report, which is updated paper WG-EMM-16/55, we describe the season activity in ... the Ukrainian Vernadsky Antarctic Station area on installation CEMP cameras in penguin colonies as ... part of the CEMP project run by USA, Argentina, Poland and Ukraine 'Establishing a CEMP Camera ... Network in Subarea 48.1'. Work has been provided under support of the National Antarctic Scientific ...
Meeting Document : SC-CAMLR-XXXV/BG/27 : Autor(es): Delegation of Ukraine
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A comparison of densities and length distribution of the Champsocephalus gunnari stock in Subarea 48.3 between years 1994 and 1995
sites fulfilled the requirements of the statistics used, stressing the value of site comparison in ... Abstract: Mean densities and length structure of Champsocephalus gunnari obttained in the 1994 ... determined by a search procedure yielding randomly selected clusters of stations located within the 50–150 ... ; 151–250 and 251–500 m depth strata. The cluster structure is considered as a nested factor in an ANOVA ...
Meeting Document : WG-FSA-95/34 : Autor(es): Marschoff, E., Calcagno, J., Gonzalez, B.
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Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia
Paper Title: Investigation of bias in the mark–recapture estimate of toothfish population size at ... South Georgia Abstract / Description: This paper investigates the influence of mixing of fish, and the ... uneven distribution of tag placements and recapture effort, on bias in the Petersen estimator of ... population size. It does so by constructing a spatial model of the South Georgia toothfish fishery ... , regardless of where they were. No other mortality factors were included in the model, not even the antici ... InvestIgatIon of bIas In the mark–recapture estImate of toothfIsh populatIon sIze at south georgIa D.J. Agnew ... Abstract This paper investigates the influence of mixing of fish, and the uneven distribution of tag ... placements and recapture effort, on bias in the Petersen estimator of population size. It does so by ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Autor(es): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark