Resultados de la búsqueda
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Seabird research at Cape Shirreff, Livingston Island, Antarctica, 2005/06
to assess trends in penguin population size, as well as inter-annual variation in reproductive ... previous season and is the third lowest population size in the 10 years of census data. The chinstrap ... penguin breeding population has been declining for the Past eight years and is at its lowest size in the ... 10 years of study. Gentoo penguin fledging Success was the highest recorded in all the years of study ...
Meeting Document : WG-EMM-06/P1 : Autor(es): E.S.W. Leung, R.A. Orben and W.Z. Trivelpiece (USA)
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An assessment of temporal variability and interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
Abstract: We examined temporal variability in a series of CEMP parameters collected over the ... the correlation of each parameter with breeding success. Breeding success was measured in terms of 1 ... sex of the foraging birds and the timing of foraging trips were important in determining whether ... foraging trip duration was correlated negatively to breeding success. Additionally, we examined within ...
Meeting Document : WG-EMM-02/46 : Autor(es): L.M. Emmerson, J. Clarke, K. Kerry and C. Southwell (Australia)
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Validation of sink rates of longlines measured using two different methods
sight behind waves or in congregations of seabirds before the target depth was reached. No TDRs were ... lost during the trial. Bottle tests were most useful, depending on sea state and weather conditions ... during line setting, or bottles vanishing from sight behind waves or in congregations of seabirds ... before the target depth was reached. No TDRs were lost during the trial. Bottle tests were most useful ... and Robertson 180 Introduction In the search for mitigation measures that reduce or even eliminate ... seabird mortality in demersal longline fi shing operations, the sink rate of the longlines was identifi ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Autor(es): Wienecke, B. and G. Robertson
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The foraging range of Adelie penguins – implications for CEMP and interactions with the krill fishery
widely spaced locations along the coast of Eastern Antarctica between 55°E near Enderby Land and 175°E in ... not occur at these sites in normal ice years. It is suggested that an understanding of the potential ...
Meeting Document : WG-EMM-96/69 : Autor(es): Rodary, D., Thomson, R., Tremont, R., Lawless, R., Gardner, H., Wienecke, B., Clarke, J.R., Kerry, K.R., Corsolini, S., Eberhard, S.
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A proposal to subdivide CCAMLR Statistical Division 58.4.1 using environmental data
Abstract: A precautionary catch limit for krill was established for CCAMLR Division 58.4.1 in ... 58.4.1 is not meridionally homogeneous in its oceanographic or biological characteristics. Division ... basis of environmental data. Krill is more abundant in the western subdivision and its biomass is more ... latitudinally extensive in this area. This observed pattern appears to be historically stable. Because of the ...
Meeting Document : WG-EMM-00/30 : Autor(es): S. Nicol and T. Pauly (Australia)
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e-sc-xxi-a4-appD.pdf
... quarters in this fishing period; (ii) a small eastern fishing ground, which can be observed only in the ... oceanography of the region (WG-EMM-02/63 Rev. 1), such that: (i) catches in the eastern fishing ground ... comprise krill associated with the eastern route of krill drift to South Georgia; and (ii) catches in ... (Table 2). Trip duration, foraging range and total distance travelled are shown in Table 3. 4.35 Data
application/pdf attached to:WSSMUPU-02Meeting Report : WSSMUPU-02
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The development of spatially and temporally controlled measures of survival and tag-detection for the CCAMLR tagging program
management by CCAMLR of a number of toothfish fisheries in Antarctica. The evaluation of the tagging ... tagging performance in relation to these two aspects has been thus far inconclusive because of confounding ... effort (e.g. vessel, vessel-trip). We developed indices to compare (i) the tag detection rate of ... tagging data in CCAMLR Subareas 88.1 and 88.2. Initial results show that the indices developed can provide ...
Meeting Document : WG-SAM-12/30 : Autor(es): S. Mormede and A. Dunn (New Zealand)
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of mass and time of arrival of adults
, there was substantial correlation in the numbers of adults breeding at study colonies of macaroni ... penguins (Eudyptes chrysolophus) over 26 years, as there was also for eastern rockhopper (E. chrysocome ... conditions may also affect breeding success. Trends in breeding success between study colonies were more ... Oscillation event of 1997/98, there was no significant correlation in mass on arrival between the two species ... . 2003b. Decrease in numbers of the eastern rockhopper penguin Eudyptes chrysocome filholi at Marion ... was substantial correlation in the numbers of adults breeding at study colonies of macaroni penguins ... (Eudyptes chrysolophus) over 26 years, as there was also for eastern rockhopper (E. chrysocome filholi ... conditions may also affect breeding success. Trends in breeding success between study colonies were more ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 175–190 : Autor(es): Crawford, R.J.M., B.M. Dyer, J. Cooper and L.G. Underhill
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Breeding numbers and success of Eudyptes penguins at Marion Island, and the influence of arrival of adults
Abstract: At Marion Island, there was considerable correlation in numbers of adults breeding at ... study colonies for both Macaroni Eudyptes chrysolophus and Eastern Rockhopper E. chrysocome filholi ... , over-wintering conditions may also affect breeding success. Trends in breeding success at study ... Niño Southern Oscillation event of 1997/98, there was no significant correlation in mass on arrival ...
Meeting Document : WG-EMM-05/38 : Autor(es): R.J.M. Crawford, J. Cooper, B.M. Dyer and L.G. Underhill (South Africa)
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Results of fish larvae sampling by means of fine-meshed samplers attached to a bottom trawl
postlarval fish was highest in the shallow (108-166 m), nearshore waters of the north eastern shelf of South ... bottom trawl Abstract / Description: Fine-meshed samplers were attached to the top of a bottom trawl in ... order to provide information on the composition, distribution and abundance of Antarctic fish larvae in ... sized meshes for sampling larvae in the bottom zone and the resistance of the samplers to damage during ... -meshed samplers were attached to the top of a bottom trawl in order to provide information on the ... composition, distribution and abundance of Antarctic fish larvae in the near-bottom zone, which is usually ... not sampled using plankton nets. The efficiency of various sized meshes for sampling larvae in the ... nets were more effective in sampling when attached to the top of the trawl belly, not to the codend. A ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 69-86 : Autor(es): Ślósarczyk, W. and I. Wójcik