Search results
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Echo integration in low signal to noise regimes: methods of noise estimation and removal
Abstract: The results of acoustic surveys, especially in low signal-to-noise regimes, are ... sensitive to the method used to exclude the contribution of background noise from the acoustic data. The use ... of thresholds to reject weak signals during data collection is inappropriate because the noise ... contribution to the above-threshold-signal cannot later be removed in post processing. The only solution is to ...
Meeting Document : WG-EMM-97/74 : Author(s): Higginbottom, I., Pauly, T.
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Habitat preferences of Adélie and chinstrap penguins during pre-moult
Abstract: In order to understand and mitigate for the potential impacts of anthropogenic ... disturbance on marine predators it is fundamental to gain insight into the drivers behind the temporal ... ) devices to track Adélie and chinstrap penguins breeding on the South Orkney Islands during the pre-moult ... phase of the annual cycle. We show that Adélie penguins have an affinity to forage and moult on sea-ice ...
Meeting Document : WG-EMM-18/P12 : Author(s): V. Warwick-Evans, M. Santos and P.N. Trathan
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JAPANESE SCIENTIFIC OBSERVER ACTIVITIES FOR KRILL FISHERY IN CCAMLR CONVENTION AREA FROM 2003/04 TO 2007/08 FISHING SEASONS
Abstract: This document introduces the recent activities and outcome of Japanese scientific ... observers onboard the commercial krill fishing vessel from 2003/04 to 2007/08 fishing seasons. Main fishing ... grounds of the Japanese fishery were the Subareas 48.1, 48.2, and 48.3. Recent observation effort was ... concentrated to the Subarea 48.3. The observer coverage was 32.2 – 51.4 %, and exceeded 50 % in 2007/08 season ...
Meeting Document : WG-EMM-09/19 : Author(s): M. Kiyota and T. Iida (Japan)
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IDENTIFICATION OF DATA QUALITY METRICS FOR TAGGING DATA SELECTION
Abstract: The suite of data quality metrics introduced by Middleton & Dunn (2008) is examined ... to identify those metrics that are most informative with respect to the identification of good ... rates of recapture of tags released by the trip, and above-median tag recapture rates by the trip.A ... bootstrap analysis indicates that the range of data quality metrics associated with known good tagging data ...
Meeting Document : WG-SAM-09/19 : Author(s): D.A.J. Middleton and A. Dunn (New Zealand)
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Short note: Time series of Drake Passage Oscillation Index (DPOI) during 1952-2008 and its possible influence on environmental variability
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... westerly winds (westerlies) determined from sea-level pressure differences across the Drake Passage ...
Meeting Document : WG-EMM-08/33 : Author(s): M. Naganobu, J. Kondo and K. Kutsuwada (Japan)
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REVISION OF CCAMLR’S SYSTEM OF INSPECTION
Abstract: Consistent with CCAMLR’s commitment to continuous improvement, the United States ... proposes that the Commission update its own System of Inspection to better support the wide range of strong ... revisions in 20 years. A major overhaul is proposed to modernize the boarding and inspection scheme in the ... Convention Area, reflective of the significant operational, technological, and legal advancements in ...
Meeting Document : CCAMLR-XXVIII/40 Rev. 1 : Author(s): Delegation of the USA
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Re-organisation of WG-FSA Report
Abstract: In 2003, WG-FSA and the Scientific Committee identified the need to rewrite and ... restructure the WG-FSA report. In early 2004, the extend and nature of the work required was developed in ... consultation between the Conveners of WG-FSA and WG-IMAF, and the Chair of the Scientific Committee ... , incorporating comments from other WG-FSA Members and the Secretariat. It was also agreed to contract Dr Inigo ...
Meeting Document : WG-FSA-SAM-04/06 : Author(s): CCAMLR Secretariat
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Joint SC-CAMLR and SC-IWC Workshop, its format and draft Terms of Reference
Abstract: A proposal for a Joint SC-CCAMLR IWC Workshop to develop multi-species models of the ... Antarctic marine ecosystem was proposed at the SC-CCAMLR 2014, and a steering group for the Workshop was ... formed. WG-EMM 2015 agreed on the benefit of dividing the workshop into two; the first to review data ... availability, and the second as a comprehensive discussion of approaches in relation to modelling and ...
Meeting Document : SC-CAMLR-XXXIV/BG/33 : Author(s): Co-conveners of the Joint SC-CAMLR and SC-IWC Workshop
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PECHEKER-SIMPA – A tool for fisheries management and ecosystem modeling
, readily available and easily accessible. The development of a specific database for the Kerguelen Plateau ... from the French Sub-Antarctic Territories. The use of reference tables and standardized computer ... language procedure open the data to exchange links with other databases like the Global Biodiversity ... Information System Facility (GBIF) and FishBase. The data already integrated into SIMPA provide ...
Meeting Document : WS-MPA-11/P02 : Author(s): P. Pruvost, A. Martin, G. Denys and R. Causse
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Signy Island, South Orkney Islands, 2005/2006
Abstract: The results of the eighth annual survey of entanglement of Antarctic fur seals at Signy ... Island, South Orkney Islands are reported for the 2005/2006 summer season. There was 1 sighting of a seal ... at Bird Island, South Georgia in 2005/06. In the case of Bird Island, data indicated that the number ... of entangled fur seals had decreased by 75% compared to the previous year, this being the lowest ...
Meeting Document : SC-CAMLR-XXV/BG/15 : Author(s): Delegation of the United Kingdom