Resultados de la búsqueda
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Further development and progress towards evaluation of an Antarctic toothfish (Dissostichus mawsoni) stock model for the Ross Sea
model for the assessment of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 ... observations defining migration between areas. The 3-area model, showed many problems in fitting the data ... adequately. In both of the spatial models, there was a lack of useful data on area splits, migration rates ...
Meeting Document : WG-FSA-SAM-05/12 : Autor(es): A. Dunn, D.J. Gilbert and S.M. Hanchet (New Zealand)
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An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort
observations reflects zero illegal fishing. The new method performs better in the case of zero detections and ... is the prevention/detection problem, in which the greater the number of detections for a given level ... results that have a degree of legitimacy. However, the range of actual fishing (in the simulation data ...
Meeting Document : WG-FSA-04/63 : Autor(es): I. Ball (Australia)
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Foraging strategies of chinstrap penguins at Signy Island, Antarctica: importance of benthic feeding on Antarctic krill
krill Euphausia superba in the Southern Ocean. To examine their foraging strategy, we studied foraging ... ) and longer overnight (19.9 h) trips, with diurnal trips (74%) being dominant in number (263 out of 355 ... in diurnal foraging trips than overnight trips. Analysis of stomach contents showed that penguins on ...
Meeting Document : WG-EMM-03/37 : Autor(es): A. Takahashi (Japan), M.J. Dunn, P.N. Trathan (United Kingdom), K. Sato, Y. Naito (Japan), J.P. Croxall (United Kingdom)
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Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica
parameters. The CEMP parameters considered in this paper include: A3: breeding population size, A1: arrival ... between-season changes in these parameters. This could potentially be achieved by either pooling several 5 ... would only affect the ability to detect long term changes in a parameter if sampling variance can also ...
Meeting Document : WG-EMM-03/48 : Autor(es): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)
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Proposal for a new Antarctic Specially Protected Area, Terra Nova Bay, Ross Sea
extending approximately 9.5 km in length immediately to the south of Terra Nova Bay Station and up to a ... long-term data have been collected; b) the waters and benthic communities down to 200 m in depth are of ... ) lines of latitude and longitude in the north, east and south offer a clear and practical definition of ...
Meeting Document : WG-EMM-02/56 : Autor(es): Proposed by Italy
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Future work of the Working Group on Ecosystem Monitoring and Management and implications for the format of its meetings
toinput parameters are included, but spatial and temporal trends in krill demographics,predator demand and ... information in order to derive a qualitative description of the status of theecosystem and appropriate ... theuncertainty in the information – has yet to be completely developed. Recent discussionsat WG-EMM regarding its ...
Meeting Document : SC-CAMLR-XIX/06 : Autor(es): Convener WG-EMM
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Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)
divided in four areas (North, East, South, Skiff Bank) and in two depth categories: less than and more ... than 1,500m. Commercial catches are integrated in the model by CCAMLR season. A weighted combination of ...
Meeting Document : WG-FSA-11/28 : Autor(es): A. Relot-Stirnemann (France)
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INTEGRATING COUNT EFFORT BY SEASONALLY CORRECTING ANIMAL POPULATION ESTIMATES (ICESCAPE): A METHOD FOR ESTIMATING ABUNDANCE AND ITS UNCERTAINTY FROM COUNT DATA USING ADÉLIE PENGUINS AS A CASE STUDY
determine surrogate availability information for a site when none exists. Importantly, standardisation in ... penguin abundance at breeding sites in Antarctica. These examples focus on adjusting counts of adults to ... easily adapted for other colonial land-breeding species showing seasonal variation in availability to ...
Meeting Document : WG-EMM-09/20 : Autor(es): J. McKinlay, C. Southwell and R. Trebilco (Australia)
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BEACHED MARINE DEBRIS SURVEYS AND INCIDENCES OF SEABIRD/MARINE MAMMAL ENTANGLEMENTS AND HYDROCARBON SOILING AT BIRD ISLAND, SOUTH GEORGIA AND SIGNY ISLAND, SOUTH ORKNEYS, 2008-2009
ropes were the most commonly observed items (in varying quantities) during all three seasons at Bird ... at Bird Island, while one entangled fur seal was seen at Signy Island. In total, 147 items of marine ... debris were found in association with seabird colonies at Bird Island, with the highest number (89 items ...
Meeting Document : WG-IMAF-09/09 : Autor(es): C.M. Waluda (United Kingdom)
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Net-based verification of acoustic techniques used to identify Antarctic krill
during two cruises to the South Georgia region in 1996. For each net-sampled aggregation the differences ... . Using the SDWBA model, dB difference identification ranges based on the length-frequencies of krill in ... frequency techniques. Such results indicate that use of the present SDWBA-derived ranges in the CCAMLR 3 ...
Meeting Document : SG-ASAM-09/04 : Autor(es): J. Watkins and S. Fielding (United Kingdom)