Resultados de la búsqueda
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Evidence of two stocks of Champsocephalus gunnari in the South Georgia region, CCAMLR fishing Area 48.3
larvae on the South Georgia shelf which is comparable with previous reports of early growth in C. gunnari ...
Meeting Document : WG-FSA-94/16 : Autor(es): A.W. North (United Kingdom)
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Progress report of the CEMP Special Fund camera network in Subarea 48.1
extend the camera network with 3 new installations. Author(s): J. Hinke, G. Watters, M. Santos, M ... Network in Subarea 48.1”. The project was initiated with support from the CEMP Special Fund in 2014/15 ... . The project is now fully operational. In 2016/17 data were recovered from 50 cameras covering 3 ... summaries indicate variation in phenological timing within species across sites with relatively high ...
Meeting Document : WG-EMM-17/16 Rev. 1 : Autor(es): J. Hinke, G. Watters, M. Santos, M. Korczak-Abshire, G. Milinevsky, V. Lytvynov, A. Barbosa, C. Southwell and L. Emmerson
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Are penguins and seals in competition for Antarctic krill at South Georgia?
, respectively, the main mammal and bird consumers of Antarctic krill (Euphausia superba). In recent years the ... 1989 and 2000. Foraging ranges of the two species showed considerable overlap in both years but the ... species was very similar, but over the last 12 years the prevalence of krill in their diets has diverged ... with nowadays less krill in the diet of macaroni penguins than in that of Antarctic fur seals. Despite ...
Meeting Document : WG-EMM-02/22 : Autor(es): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)
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CEMP cameras data validation experiment at the Galindez Island gentoo penguin (Pygoscelis papua) colonies
three monitoring sites GBW, GPP1, and GPP2, simultaneously with automatic time-lapse cameras picturing ... . The results of visual observations have been compared with data from camera pictures, which registered ... preliminary results exhibit the reasonable correspondence within 0-3 days between visual observations and time ... -lapse camera data for both seasons. The standard deviation for each event varies from ±1 to ±3 days for ...
Meeting Document : WG-EMM-2019/59 : Autor(es): P. Khoetsky, A. Dzhulai, V. Smagol, G. Milinevsky, I. Dykyy, A. Simon, M. Telipska, E. Dykyi, I. Parnikoza and L.Pshenichnov
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Relationship between Antarctic krill (Euphausia superba) variability and westerly fluctuations and ozone depletion in the Antarctic Peninsula area
and the strength of westerlies during 1982–1998. Years with strong westerlies during the austral ... ; = 0.57) and 2-year-old krill (r = 0.69) with a level of significance of 5%. In addition, the strength of ... westerlies also had a strong correlation with chlorophyll a (r = 0.63) and sea ice cover with a 1-year time ... density with hypothesized environmental factors, including strength of westerly winds (westerlies ...
Meeting Document : WG-EMM-99/52 : Autor(es): M. Naganobu, K. Kutsuwada, Y. Sasai and T. Taguchi (Japan) and V. Siegel (Germany)
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
and were the main prey in 12 years, with Champsocephalus gunnari and Lepidonotothen larseni the most ... Abstract: Inter-annual variability in diet during crèche (December to February) over 22 years ... present in 89 % of samples and were the main prey (> 50 % by mass) in 10 years of the study. Antarctic ... patterns of gentoo penguin diet variability with those of macaroni penguins Eudyptes chrysolophus breeding ...
Meeting Document : WG-EMM-17/P02 : Autor(es): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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A RISK ASSESSMENT TO ADVISE ON STRATEGIES FOR SUBDIVIDING A PRECAUTIONARY CATCH LIMIT AMONG SMALL-SCALE MANAGEMENT UNITS DURING STAGE 1 OF THE STAGED DEVELOPMENT OF THE KRILL FISHERY IN SUBAREAS 48.1, 48.2, AND 48.3.
level. Relative to Fishing Options 2 and 3, fishery performance under Option 4 is also poor, with ... . (2008) to assess the risks and tradeoffs associated with various management strategies for subdividing ... selecting among Fishing Options 2, 3, and 4 are tradeoffs between the risks to predator populations and ... of Fishing Option 3 will also require substantive fishery operations in pelagic SSMUs, but, if krill ...
Meeting Document : WG-EMM-08/30 : Autor(es): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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Estimating toothfish biomass in Subarea 48.3 using local depletions
means of estimating toothfish density at South Georgia. Over the four years 2000-2003, we found 25 areas ... . Applying a Leslie method we derived toothfish densities in these areas which were linearly correlated with ... the initial CPUE experienced by the fishing vessels. Using this correlation, combined with the average ... CPUE over the four years and multiplying by the total fishable area in Subarea 48.3 we arrived at an ...
Meeting Document : WG-FSA-SAM-04/18 : Autor(es): Pearce, J., Agnew, D.
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Modelling growth of Antarctic krill: a new approach to describing the growth trajectory
from direct measurements of individual pre- and post-moult krill sampled from the wild with a model of ... temperature-dependent intermoult period. Using summer and early autumn data for juveniles and males sampled ...
Meeting Document : WG-EMM-05/27 : Autor(es): S. Candy and S. Kawaguchi (Australia)
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APPLICATION TO UNDERTAKE WINTER SCIENTIFIC RESEARCH IN CCAMLR SUBAREA 88.1 (SSRUS 88.1B, 88.1C AND 88.1G) IN THE 2008/09 SEASON
collect information that should assist in the understanding of the early life history and reproduction of ... accordance with Conservation Measures 24-01, 33-03, 41-01 and 41-09. Author(s): Delegation of New Zealand ... in CCAMLR SSRUs 88.1B, 88.1C and, ice permitting, 88.1G in 2008/09, as the first in a three year time ...
Meeting Document : WG-FSA-08/62 : Autor(es): Delegation of New Zealand