Search results
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A hybrid approach to acoustic classification and length estimation of krill
considered. A euphausiid aggregation is represented by a three-dimensional probabilistic vector whose ... are derived by integrating the individual decisions. The size structure of the classified aggregation ... is derived from a fluid-sphere model. The effectiveness of the method is demonstrated by comparing ... euphausiid aggregation is represented by a three-dimensional probabilistic vector whose components are the ... component of a vector, using classical Bayesian techniques. Classifi cation probabilities are derived by ... uid-sphere model. The effectiveness of the method is demonstrated by comparing the acoustic estimates ... and consumed by whales. Therefore it is important to estimate the abundance and geographical distri ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani
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Long-term monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
were re-calculated applying the delta distribution approach introduced by de la Mare (1994a). The high ... interannual variability of krill recruitment is confirmed by the present analysis. Results are compared for ... krill density over the period 1977 to 1994 are also confirmed by this study using randomisation tests on ... . Proportional recruitment indices were re-calculated applying the delta distribution approach introduced by de ... la Mare (1994a). The high interannual variability of krill recruitment is confirmed by the present ... significant fluctuations in krill density over the period 1977 to 1994 are also confirmed by this study using ... ). Furthermore it is necessary to know if high variability of the R, index is a real phenomenon or is biased by ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 19–35 : Author(s): Siegel, V., W. de la Mare and V. Loeb
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
{ecTBeHHoMY YBeJlHqeHHIO W YMeHbweHwlO cpeAHero 1(0nHqeCTBa BblXOAOB B nOWCKax nWlI{w, npw 3TOM 1979 reA ... Georgia Abstract / Description: The number of feeding trips to sea made by female Antarctic fur seals ... ) the number of feeding trips made by an individual’'s mother during lactation. This analysis ... showed that between 1962 and 1981 the mean number of feeding trips made by female fur seals varied ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Author(s): Bengtson, J.L.
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Draft conservation measure for an East Antarctic Marine Protected Area
been under consideration by the Commission since 2012. This paper presents a revised conservation ... measure articulating changes, including feedback provided by members, which continue to improve the ... proposal. The paper provides greater clarity on the proposal by explaining how existing conservation ...
Meeting Document : CCAMLR-XXXVI/17 : Author(s): Delegations of Australia, the European Union and its Member States
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CEMP 2018/19 data and updated spatial analysis of Area 48
for the 2018/19 monitoring season detailed by site and species, and includes an update to the Combined ... patterns of inter-annual variability of the response by krill-dependent predators to changes in the ... ecosystem between sites by Subarea, suggesting CEMP data are tracking similar processes. Author(s): CCAMLR ...
Meeting Document : WG-EMM-2019/04 : Author(s): CCAMLR Secretariat
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Marine mammals and demersal longline fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of depredation levels
longline fishing operations were reported by observers on board fishing vessels targeting Patagonian ... monitored. Interactions were observed in all fishing areas. The effect of depredation was assessed by ... marine mammal species alone or in co-occurrence. In the Crozet EEZ, CPUE was found to be reduced by 22.5 ... % in the presence of killer whales, 12.1% by sperm whales, and 42.5% when both species were present ... reported by observers on board fi shing vessels targeting Patagonian toothfi sh (Dissostichus eleginoides ... . Interactions were observed in all fi shing areas. The effect of depredation was assessed by comparing catch ... mammal species alone or in co-occurrence. In the Crozet EEZ, CPUE was found to be reduced by 22.5% in ... the presence of killer whales, 12.1% by sperm whales, and 42.5% when both species were present ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 67–82 : Author(s): Roche, C., C. Guinet, N. Gasco and G. Duhamel
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e-sc-xxii.pdf
... 48.3) ................. 37 Statements by Argentina and the UK ... .................................................. 38 Fish By-catch associated with Longline and Trawl Fisheries ....................... 38 ... Language Support for CCAMLR Science ................... 553 ANNEX 8: Specific Tasks Identified by the ... (Australia) – Fish Resources excluding By-catch; • Mr R. Williams (Australia) – Fish Resources By-catch
application/pdf attached to:SC-CAMLR-XXIIMeeting Report : SC-CAMLR-XXII
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e-cc-xxviii-a5.pdf
... meeting and all Members of the Commission participated. Observers invited by the Commission to ... total of 62 inspectors were designated by Australia, Chile, France, New Zealand and the UK. A total of ... nine at-sea inspections were conducted; six by UK-designated CCAMLR inspectors in Subarea 48.3, two by ... Australian- designated inspectors in Division 58.4.3b and one by French-designated inspectors in Division
application/pdf attached to:SCIC-09Meeting Report : SCIC-09
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e-cc-ix-a8.pdf
... contained in paragraph 155 of CCAMLR-VIII that ASOC’s attendance would be governed by the Commission’s ... Committee by elaborating on any of the points raised by SCAR, nor would he have the benefit of hearing the ... Committee considered reports of an inspection conducted by the United States on a Japanese vessel on 1 ... by the inspection team during boarding and disembarkation from the fishing vessel. The United
application/pdf attached to:SCOI-90Meeting Report : SCOI-90
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e-sc-vii-a8.pdf
... integrated research and monitoring effort that is evolving from the needs identified by the various working ... discussion of the long-term program of work concurred that as the activities undertaken by the Scientific ... prioritising the long-term data requirements of CCAMLR is an area that needs further attention by the ... 1990/91 Seasons’, prepared by the Science Officer, and the ‘Report of the Informal Group on the Long
application/pdf attached to:WG-LTP-88Meeting Report : WG-LTP-88