Resultados de la búsqueda
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
estimated by incorporating a Petersen approach in a novel semi-parametric model using maximum likelihood ... substantial decline in available abundance predicted by both models provides some evidence of large-scale ...
Meeting Document : WG-FSA-00/43 : Autor(es): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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Modelling the dynamics of krill populations in the Antarctic Peninsula region
from about 0.3 to 1.0 (26%-63%) and the long-term trajectories of density estimated by the models give ... observed density changes. The need for caution in interpreting the model results was emphasized by an ...
Meeting Document : WG-EMM-99/56 : Autor(es): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)
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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
water circulation in areas of krill concentrations was characterized by a sluggish current with eddies ... by prevailing currents. In the waters north of the South Shetland Islands, krill appeared to be ...
Meeting Document : WG-EMM-98/18 : Autor(es): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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Krill population dynamics at South Georgia 1991–1997, based on data from predators and nets
krill dominated during December but were completely replaced by small krill by February. The mean length ...
Meeting Document : WS-AREA 48-98/15 : Autor(es): K. Reid, J. Watkins, J. Croxall and E. Murphy (UK)
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30 years of krill fisheries management – challenges remain
frequently. The reproduction and survival of krill are significantly affected by sea ice cover. This is of ... to be a reason for concern. Author(s): Submitted by ASOC Title: 30 years of krill fisheries ...
Meeting Document : CCAMLR-XXX/BG/19 : Autor(es): Submitted by ASOC
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2010–11
location of fishing together with the catch of Dissostichus spp. and bycatch species by year for the period ... 88.1I over the last 1–2 years as a mode of smaller (c. 100 cm) fish is selected by teh fishery, most ...
Meeting Document : WG-FSA-11/45 : Autor(es): M.L. Stevenson, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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PENGUIN RESPONSES TO CLIMATE CHANGE IN THE SOUTHERN OCEAN
likely to respond by dispersal rather than adaptation. Ecosystem changes are potentially most important ... tolerance; species with low adaptability, particularly the ice-obligates, may therefore be more affected by ...
Meeting Document : WG-EMM-09/P09 : Autor(es): J. Forcada and P.N. Trathan
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ENCOUNTERS WITH VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA
course of research surveys conducted by the U.S.A. in Subarea 48.1 (17 notifications, seafloor depth 92 ... -642 m) and Subarea 48.2 (11 notifications, depth 96-252 m), and by Australia in Division 58.4.1 (2 ...
Meeting Document : WG-EMM-09/08 : Autor(es): Secretariat
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PREDICTING SPECIES DISTRIBUTIONS FROM MUSEUM AND HERBARIUM RECORDS USING MULTI-RESPONSE MODELS FITTED WITH MULTIVARIATE ADAPTIVE REGRESSION SPLINES
methods for using these data. Such methods must, in particular, accommodate the difficulties caused by ... multiple species affect predictive performance, by evaluating predictions at completely independent sites ...
Meeting Document : WS-VME-09/P02 : Autor(es): Elith, J., Leathwick, J.
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INCORPORATING SAMPLING VARIATION AND RANDOM READER ERROR INTO CALCULATION OF EFFECTIVE SAMPLE SIZE IN THE APPLICATION OF AGE LENGTH KEYS TO ESTIMATION OF CATCH-AT-AGE PROPORTIONS
ageing, and random reader error when ageing fish. The catch-at-age ESS is estimated by dividing the ESS ... for the LF sample, where this ESS is obtained from the haul-level LF data, by an over-dispersion ...
Meeting Document : WG-SAM-09/08 : Autor(es): S.G. Candy (Australia)