Resultados de la búsqueda
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Diet and feeding ecology of the diving petrels Pelecanoides georgicus and P. urinatrix at South Georgia
Bird Island, South Georgia. The diet of both species was dominated by crustaceans. in particular ... crustaceans in the diet of P. georgicus. and copepods, which contributed 71 % of the biomass of crustaceans in ... the diet of P. urinatrix. Calanoides acutus was the most numerous copepod in the diet of both species ... in the diet of P. georgicus, Primo macropa, was absent from the diet of Pelecanoides urinatrix, in ...
Meeting Document : WG-EMM-97/10 : Autor(es): Croxall, J.P., Prince, P.A., Hill, H.J., Edwards, T.M., Reid, K.
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COMPARING CEMP INDICES TO INFORM FEEDBACK MANAGEMENT OF THE ANTARCTIC KRILL FISHERY
in treatment data or minor shifts in the mean of treatment data resulted in readily identifiable ... population can be assessed by measuring trends in the difference between the observed states of a “treatment ... across space and across species. The results suggest that relatively minor changes in the rate of decline ... (probability ≥ 95%) differences in the relative behaviour of treatment and control populations over a short (5 ...
Meeting Document : WG-EMM-11/25 : Autor(es): J.T. Hinke and G.M. Watters (USA)
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Developing research on Antarctic krill to facilitate the development and updating of feedback management procedures
Abstract: Antarctic krill fisheries have the potential to be in the top 10 fisheries of the world ... in terms of biomass production. The expansion of the fishery from current levels appears inevitable ... 2002-2004. Since that time, there have been shifts in the behaviour and methods of the krill fishery ... remain a number of major gaps in our understanding of the basic biology and dynamics of krill populations ...
Meeting Document : WG-EMM-13/12 : Autor(es): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill, N.M. Johnston, P.N. Trathan and J.L. Watkins (United Kingdom)
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First Annual Report of the CCAMLR Otolith Network, 2002
several cases may be explained by apparent differences in the timing of formation of translucent zones ... Abstract: This report presents results from the first exchange of otoliths under the auspices of ... the CCAMLR Otolith Network (CON), following the Workshop on Estimating Age in Patagonian Toothfish ... , from 23 to 27 July 2001. The National Institute of Water and Atmospheric Research, Nelson, New Zealand ...
Meeting Document : WG-FSA-02/51
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Otolith chemistry reveals local population structure of Antarctic toothfish (Dissostichus mawsoni) within the CCAMLR Subarea 48.6
and economical value and that distributed in the high latitude of the Southern Ocean. The CCAMLR ... unknown in this regions, which hampered the understanding on population dynamics of this species and the ... management of toothfish fishery. The chemistry in the otolith can often be used to distinguish population ... structure of fish. In order to understand the local population structure of D. mawsoni in different research ...
Meeting Document : WG-FSA-18/75 : Autor(es): L. Wei, G.P. Zhu, S. Somhlaba, X.Y. Yu and M. Duan
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
may mean that the stocks of C. gunnari in Sub-Antarctic waters have far more resilience and a greater ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... characteristics in common, such as feeding mode and food, early life history, and growth in the first years of ... . They may grow to more than 60cm and may become 13-15 years old. However, in the vicinity of South ...
Meeting Document : WG-FSA-96/24 : Autor(es): Everson, I., Kock, K.-H.
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DIRECT EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY
seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover in ... the main krill fishing grounds has resulted in greater accessibility of krill stocks to the fishing ... thought of as being indirect, for example through distributional changes of fish populations, changes in ... evidence of direct effects of the changing physical environment – the duration of sea ice cover- on the ...
Meeting Document : WG-EMM-09/P06 : Autor(es): S. Kawaguchi, S. Nicol and A.J. Press
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Summary of monitoring and research effort and preliminary results from the 2019 Scotia Sea krill monitoring survey with FV Cabo de Hornos
samples on the shelf north of the south Shetland islands, in the Bransfield Strait, the shelf north of the ... distribution were dominated by two modes, one of very large animals averaging around 55 mm dominating in the ... Association of Responsible Harvesting Companies (ARK) and manned with personnel from the Institute of Marine ... Research to carry out a significant part of the 2019 Scotia Sea large scale krill monitoring. All sections ...
Meeting Document : WG-EMM-2019/46 : Autor(es): G. Skaret, M. Martinussen, G. McCallum, R. Pedersen, J. Rønning, A.L. Donoso, O.A. Bergstad and B.A. Krafft
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CASAL model evaluation incorporating the calculation of harvest rate for D. eleginoides at Division 58.4.4b
Abstract: In order to achieve the milestone “1.5 Update CASAL model” of the ongoing research plan ... at the block 1 of Division 58.4.4b (Table 1). Changing IUU level (26.5 t to 40 t) in 2009/10 fishing ... season cause increasing of B0 In all scenarios, the estimated MCYs for D. eleginoides were higher than ... 58.4.4b were revised. Following WG-SAM-2019 suggestions (para 6.76 in the WG-SAM2019 report), we conducted ...
Meeting Document : WG-FSA-2019/62 : Autor(es): T. Okuda and F. Massiot-Granier
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Analysis and modelling of the Soviet Southern Ocean krill fleet
support the notion of a “patches within patches” model for the distribution of krill in the southern ... distributions in Part II. General considerations about the theory of abundance indices for pelagic, schooling ... species are discussed. In particular, the importance of the time spent searching for swarms is highlighted ... , (ii) I recommend that fishing vessels begin to indicate in their log books the amount of between trawl ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 127–235 : Autor(es): Mangel, M.