Résultats de la recherche
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Factors influencing Antarctic krill distribution in the South Shetlands
factors were considered to be responsible for this characteristic distribution of krill. Diatoms were the ... . Hence, higher diatom biomass may be one of factors forming krill concentrations in the inshore and ... . The frontal zone was considered to be favorable spawning ground for krill: not only because of the ...
Meeting Document : WG-KRILL-93/38 : Auteur(s): T. Ichii, H. Ishii and M. Naganobu (Japan)
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Fisheries risks to the population viability of black petrel (Procellaria parkinsoni)
data from observers were too sparse and imprecise to be useful. The fact that the population is ... population. The mean age of first breeding for black petrel is estimated to be 6.7 y. Before this, new adults ... ’ foraging range and thus help to identify fisheries that might be affecting this population. (New Zealand ...
Meeting Document : WG-SAM-10/P01 : Auteur(s): R.I.C.C. Francis and E.A. Bell (New Zealand)
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Research and monitoring to support an MPA in the Ross Sea Region
should be structured. Here we present a draft plan to support an MPA in the Ross Sea Region (RSR) and ... largely represents a mechanism for generating discussion that we hope will be useful to all Members ... of what we present here can, where appropriate, be merged with elements developed by others to ...
Meeting Document : WG-EMM-12/46 : Auteur(s): G.M. Watters and C.S. Reiss (USA)
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Competition-mediated prey availability drives Adélie penguin (Pygocelis adeliae) chick size, mass and condition at colonies of differing size in the southern Ross Sea
populations. Body size, mass and condition may be important determinants of an organism’s ability to survive ... periods of low resource availiability or high metabolic demand. Such effects may be particularly ... foraging. In addition, we show that in some cases, increased intraspecific competition may be a more ...
Meeting Document : WG-EMM-13/31 : Auteur(s): A.L. Whitehead (Australia), P. O’B. Lyver (New Zealand), G. Ballard (USA), K. Barton, B.J. Karl (New Zealand), D.G. Ainley, K. Dugger, S. Jennings (USA), A. Lescroël (France) and P.R. Wilson (New Zealand)
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Calculating effective releases and recaptures for stock assessments based on tag detection and tagging mortality indices
in the Ross Sea region. This index was subsequently used in 2013 to select the tagging data to be ... that additional work should be undertaken to further develop this method. Previous applications of the ... recommend that the method proposed be used in the Ross Sea region stock assessment and in the Amundsen Sea ...
Meeting Document : WG-SAM-14/30 : Auteur(s): S. Mormede (New Zealand)
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
hypothesis proposed. Further data collection would be useful to improve the parameterisation of the model, in ... . We propose that the modelling platform presented here can be used to test the likelihood and examine ... movement scenario the model can also be used to examine the likely effects on the toothfish stock ...
Meeting Document : WG-SAM-14/31 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Marine ecosystem acoustics (MEA): quantifying processes in the sea at the spatio-temporal scales on which they occur
monitoring. Realistic understanding of what can and cannot be achieved with the available sampling techniques ... these processes occur. In contrast, acoustic observations can be obtained on spatial scales from ... monitoring and assessment practices and it is to be hoped that they also promote and facilitate interaction ...
Meeting Document : WG-EMM-15/P01 : Auteur(s): O.R. Godø, N.O. Handegard, H.I. Browman, G.J. Macaulay, S. Kaartvedt, J. Giske, E. Ona, G. Huse and E. Johnsen
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Priorités des groupes de travail et des sous-groupes pour les 4 prochaines années
work could be streamlined. In early September the Chair and the Vice Chairs of the Scientific Committee ... for developing the Feedback Management for krill fishery must be the priority for the WG-EMM for the ... enable targeted workshops to be held to address specific topics at other times of the year to enable the ...
Meeting Document : SC-CAMLR-XXXIV/14 : Auteur(s): Conveners of WG-EMM, WG-SAM, WG-FSA and SG-ASAM
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Revised assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990–2014
Group also requested that projections be presented to WG-FSA for this assessment that examine the ... in the revised OB_1b model were estimated to be 71 tonnes, which corresponded 43 % of that (163 ... killer whales constantly occurs, the CCAMLR yield should be reduced to 22.5 tonnes. Author(s): K. Taki ...
Meeting Document : WG-FSA-15/23 : Auteur(s): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Draft updated data collection plan for the Ross Sea toothfish fishery
inform management decisions made to achieve specific goals. Any data collection plan should be drawn from ... Article II of CCAMLR can be summarised as: the target fished population is above a level which ensures ... weight be included as a requirement in the Type II biological measurements for observer sampling from the ...
Meeting Document : WG-FSA-15/40 : Auteur(s): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)