Search results
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An update on using the CCAMLRGIS R package to create polygon data and access data on the CCAMLR online GIS
Abstract: To facilitate access to spatial data for use in analyses and generating graphics (i.e ... . maps) in R the CCAMLRGIS R package has been upgraded to provide direct access to polygon data that can ... used directly in R or be output as shapefiles that can be loaded into other programs and/or back onto ... the online GIS. In this paper we provide information on the data format requirements for generating ...
Meeting Document : WG-SAM-17/47 : Author(s): CCAMLR Secretariat
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Proposal for further trials aimed at reducing Macrourus spp. by catch on autoliners targeting D. eleginoides with longlines around South Georgia
Abstract: IW longlines are effective in reducing the bycatch of birds in toothfish fisheries, but ... . We intend to trial two alternative configurations against IW systems in 48.3 in the 2007/08 fishing ...
Meeting Document : WG-FSA-07/30 : Author(s): Delegation of the United Kingdom
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A proposal for streamlining the work of the Scientific Committee for the Conservation of Antarctic Marine Living Resources
in different working groups. There is also a need to give time to emerging issues for which there is ... insufficient time at present in the existing working groups, such as consideration of marine protected areas in ... the use of marine protected areas in the CCAMLR context, ii) Development of assessment methods – to ... Fishing could be spread across all three with a more dedicated report in the Assessment working group as ...
Meeting Document : WG-EMM-05/35 : Author(s): A.J. Constable (Australia)
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Satellite tracking of black-browed and light-mantled sooty albatrosses from Heard Island and potential interactions with fisheries
foraged on the shelf break within 150 km of Heard Island, and focused 75% of their foraging time in waters ... date in the longline fishery), although in 2005 seven black-browed albatrosses were killed in the ... a further 5% went beyond either EEZ into the high seas north and east of Heard Island. In contrast ...
Meeting Document : WG-FSA-05/14 : Author(s): K. Lawton, R. Kirkwood and G. Robertson (Australia)
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Trophic relations of the cephalopod Martialia hyadesi (Teuthoidea: Ommastrephidae) at the Antarctic Polar Front, Scotia Sea
Sea in February 1989. The dissected stomachs of 61 specimens were classified according to fullness and ... items in the squid's diet were the myctophid fishes Krefftichthys anderssoni and Electrona ... squid mantle length. Over the size range of squid in the sample there was no relationship between size ... preference was related to squid size. The prevalence of copepod-feeding myctophids in the diet of this squid ...
Meeting Document : SC-CAMLR-XI/BG/11 : Author(s): Delegation of United Kingdom
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The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at Heard Island
Heard Island fed mainly on fish with an average 95.2% of scats in monthly collections containing fish ... and skate (Bathyraja sp.), the latter being found in over 60%-of scats in October and November. The ... . There the increase is thought to be due to the high availability of krill E. superba, but, in the ... on Heard Island grounds must be considered in this light. Author(s): Delegation of Australia Title ...
Meeting Document : SC-CAMLR-VIII/BG/53 : Author(s): Delegation of Australia
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A proposal to review and strengthen the CCAMLR System of Inspection
Abstract: The CCAMLR System of Inspection was adopted in 1988 at a time when few such schemes ... in the case of a suspected breach of measures in force;? providing an ability to promptly or ... immediately stop a CCAMLR Contracting Party-flagged vessel that is found to be in breach of a CCAMLR ... in order to strengthen their ability to verify compliance with CCAMLR conservation measures. Author(s ...
Meeting Document : CCAMLR-XXVI/29 Rev. 1 : Author(s): Delegation of Australia
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Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program
correlated (greater than 0.6). Criteria for inclusion of parameters in the indices are discussed when ... power of the statistical procedure adopted by WG-EMM in 1996 for identifying anomalies in CEMP ... few anomalous values have appeared in the data. An alternative procedure, using estimates of the mean ... of CEMP indices for application in CCAMLR. Author(s): W. de la Mare and A. Constable (Australia ...
Meeting Document : WG-EMM-00/14 Rev. 1 : Author(s): W. de la Mare and A. Constable (Australia)
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Extinction risk of Antarctic and sub-Antarctic colonies of Pygoscelid penguins under climate change context
different colonies around Antarctica. In this study, the extinction risk of Adélie, Chinstrap and Gentoo ... penguins was evaluated in order to identify the most endangered colonies under present-day and future ... intraspecific competition appears as the most important endogenous factor in all colonies. In turn, the response ... reduction of carrying capacity is mediated by a decrease in food availability and appears as key factor for ...
Meeting Document : WG-EMM-2019/74 : Author(s): M. Huerta and S.A. Estay
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The development of spatially and temporally controlled measures of survival and tag-detection for the CCAMLR tagging program
management by CCAMLR of a number of toothfish fisheries in Antarctica. The evaluation of the tagging ... tagging performance in relation to these two aspects has been thus far inconclusive because of confounding ... tagging data in CCAMLR Subareas 88.1 and 88.2. Initial results show that the indices developed can provide ... evidence of significant differences in tagging performance between different groups of fishing effort ...
Meeting Document : WG-SAM-12/30 : Author(s): S. Mormede and A. Dunn (New Zealand)