Résultats de la recherche
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CCAMLR ecosystem monitoring and management: future work
harvest controls will be adjusted based on the scientific information available and the assessments that ... its ecosystem-approach to managing fisheries with the maintenance of ecological relationships included ... process is due to the formulation of a management procedure, which has decision rules that specify how ... meeting the needs of predators, incorporating (i) operational objectives that articulate the target ...
Meeting Document : WG-EMM-12/P05 : Auteur(s): A.J. Constable
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PENGUIN RESPONSES TO CLIMATE CHANGE IN THE SOUTHERN OCEAN
tolerance; species with low adaptability, particularly the ice-obligates, may therefore be more affected by ... Abstract: Penguins are adapted to live in extreme environments, but they can be highly sensitive ... -Southern Oscillation and the Southern Annular Mode are the main modes of climate variability that drive ... complex and changes over time, so that penguin responses to climate change are expected to vary ...
Meeting Document : WG-EMM-09/P09 : Auteur(s): J. Forcada and P.N. Trathan
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
unsatisfactory in previous models, with a much flatter maturity ogive than that derived through histology. In the ... . We propose that the modelling platform presented here can be used to test the likelihood and examine ... that a proportion of the mature fish spawn each year. The model estimation of the maturity ogive is now ... similar to that estimated by histological analysis. This model represents our current best model of the ...
Meeting Document : WG-SAM-14/31 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Conserving surface-nesting seabirds at the Prince Edward Islands: the roles of research, monitoring and legislation
regionally or internationally. The main causes of population decreases are thought to be by-catch mortality ... availability of prey to penguins and the Crozet shag Phalacrocorax [atriceps] melanogenis. It is proposed that ... the Prince Edward Islands Special Nature Reserve be expanded to include surrounding territorial waters ... near to the islands. Consideration needs also to be given to listing species as threatened or protected ...
Meeting Document : WG-EMM-03/14 : Auteur(s): R.J.M. Crawford and J. Cooper (South Africa)
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Fish and invertebrate by-catch from Australian fisheries for D. eleginoides and C. gunnari in Division 58.5.2
kg per year in weight. The results presented here, indicate that this species is likely to be very ... fisheries are estimated to be very low. From 1996/1997 to 2002/2003, a total of 115 tonnes of by-catch was ... with distances travelled ranging between 1 and 7 nautical miles. The time at liberty varied between 208 ... and 823 days, with most skates at liberty for approximately one year. Estimates of growth were very ...
Meeting Document : WG-FSA-03/73 : Auteur(s): E.M. van Wijk and R. Williams (Australia)
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Seabird avoidance measures for small Alaskan longline vessels
guidelines. Vessel speed was found to be a primary determinant of both the distance astern that longline ... Alaskan longline vessels, we determined the “2-m access window”, or the distance astern that longline ... gear). We determined that the current single streamer line requirement for snap-on gear vessels over ... 16.8 m and with infrastructure (a 45-m streamer line with a minimum aerial distance of 20 m) was ...
Meeting Document : WG-FSA-05/36 : Auteur(s): E.F. Melvin and M. Wainstein (USA)
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IMPLEMENTATION OF CCAMLR OBSERVER PROGRAM ON KRILL FISHERIES
, together with haul-by-haul fine-scale data were used to identify the target SSMUs and the critical periods ... analysis revealed that the key to a successful observer program is 100% participation by all Members in ... providing systematic observer coverage, with 100% vessel time coverage to ensure viable data collection. An ... urgent need for capacity building by all fishing nations is re-iterated so that a large number of ...
Meeting Document : TASO-09/07 : Auteur(s): Kawaguchi, S.
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Recent increase and southern expansion of Adelie penguin populations in the Ross Sea, Antarctica, related to climatic warming
Barne (77°35’S) with the re-occupation of a former rookery that was abandoned sometime before the ... present century. These biological trends show remarkable synchronisation with physical evidence of ... climatic variation in the McMurdo Sound region. We suggest that the dynamics of Adelie penguin populations ... may be very sensitive indicators of changes in the Antarctic climate. Published in: New Zealand ...
Meeting Document : WG-CEMP-92/22 : Auteur(s): R.H. Taylor and P.R. Wilson (New Zealand)
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Quantifying uncertainty in the Chapman mark-recapture estimate of abundance
recommend that additional functions associated with mark-recapture analysis within CCAMLR’s fisheries be ... -parametric bootstrap to obtain confidence intervals from single release tag-recapture data. We recommend that ... WG-FSA encourage Members to provide estimates of uncertainty associated with indicative biomass ...
Meeting Document : WG-FSA-15/49 : Auteur(s): P. Burch (Australia), S. Parker (New Zealand) and D. Welsford (Australia)
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EU PROPOSAL FOR AMENDMENT TO CCAMLR CONSERVATION MEASURE 10-07 TO ALLOW FOR INTERSESSIONAL DE-LISTING OF IUU VESSELS
vessels as well as setting out actions that might be taken against such vessels, it seems that due to the ... […], timing and frequency with which vessels are added or removed from the IUU vessel list", so that the ... Convention area. These Conservation Measures lay down the process and procedures under which vessels would be ... of the recommendations of the Performance Review Panel that "CCAMLR should review the process ...
Meeting Document : CCAMLR-XXIX/43 : Auteur(s): Delegation of the European Union