Search results
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Review of skate (Rajiformes) by-catch in CCAMLR toothfish fisheries
useful for a future focus topic in the SISO. Author(s): Secretariat Title: Review of skate (Rajiformes ... Abstract: Available data on the by-catch of Rajiformes was extracted from the CCAMLR database ... spatial ranges for some species. The data collected as part of CCAMLR fisheries represents a very ... substantial repository of information on Southern Ocean Rajiformes; realising the full potential of this data ...
Meeting Document : WG-FSA-14/12 : Author(s): Secretariat
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Summary of notifications for krill fisheries in 2016/17
Abstract: Six Members notified a total of 18 vessels for krill fisheries in 2016/17 in Subareas ... on the CCAMLR website and the notified information on the fishing operation and gear is summarised in ... this paper. Participating Members are thanked for providing feedback and assistance in developing the ... new online notification system. Author(s): CCAMLR Secretariat Title: Summary of notifications for ...
Meeting Document : WG-EMM-16/72 Rev. 1 : Author(s): CCAMLR Secretariat
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Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations
. In contrast, kernel estimation reveals that the main foraging areas of these two sympatric ... Abstract: We develop a new approach to quantifying habitat use within the foraging ranges of ... chick rearing period of the breeding cycle at South Georgia. At this time the activity range of these ... , the foraging areas cover c.81,500 and c.119,700 km2 respectively, with 42 % and 50 % of the range of ...
Meeting Document : WG-FSA-99/19 : Author(s): A.G. Wood (United Kingdom), B. Naef-Daenzer (Switzerland), P.A. Prince and J.P. Croxall (United Kingdom)
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Quantifying habitat use in satellite-tracked pelagic seabirds: application of kernel estimation to albatross locations
Abstract: We develop a new approach to quantifying habitat use within the foraging ranges of ... -rearing period of the breeding cycle at South Georgia. At this time the activity range of these two ... contrast, kernel estimation reveals that the main foraging areas of these two sympatric, congeneric species ... are very distinct. Based on location density categories accounting for 50% of locations, the foraging ...
Meeting Document : WG-EMM-01/67 : Author(s): A.G. Wood (United Kingdom), B. Naef-Daenzer (Switzerland), P.A. Prince and J.P. Croxall (United Kingdom)
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Annual report of research fishing operations at Subarea 48.6 in 2016/17 fishing season
Abstract: This paper represents the annual report of a multi-member longline survey on Antarctic ... Africa. The data set, C2 and Oｂserver data, was provided by the CCAMLR Secretariat on the 20th of April ... , 2018. In this paper, the data set during last fishing season (2016/17) was used for reporting the ... quantity of data, samples collected, and results of quick analysis as a progress toward research milestones ...
Meeting Document : WG-SAM-18/32 : Author(s): Delegations of Japan and South Africa
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Absence of haematozoa in breeding macaroni Eudyptes chrysolophus and rockhopper E. chrysocome penguins at Marion Island
Abstract: Haematozoan infections cause the death of penguins in captivity, but seldom in the wild ... October and November 2001. Discussion centres on the possibility of vector introduction and establishment ... (South Africa) Title: Absence of haematozoa in breeding macaroni Eudyptes chrysolophus and rockhopper E ... . No haematozoa were found in 89 blood smears taken from macaroni penguins Eudyptes chrysolophus or 80 ...
Meeting Document : WG-EMM-03/19 : Author(s): A. Schultz and S.L. Petersen (South Africa)
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Management of C. gunnari in Subarea 48.3
Abstract: The management of Champsocephalus gunnari at South Georgia is complicated by the ... likelihood of substantial periodic variation in natural mortality rates. These may be associated with ... increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining to ...
Meeting Document : WG-FSA-97/38 : Author(s): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.
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PRELIMINARY ASSESSMENT OF TOOTHFISH IN SUBAREA 48.3
Abstract: 1. 2009 data have been incorporated in to the catch-at-age based CASAL model for ... toothfish in Subarea 48.3. 2. Fits to the survey data are good for the early 2000s, particularly 2004 to ... 2006. Fits to the catch at age data are good, except for 2009 where large numbers of age 7 and age 9 ... ASSESSMENT OF TOOTHFISH IN SUBAREA 48.3 Approval: Approved ...
Meeting Document : WG-FSA-09/28 Rev. 1 : Author(s): D.J. Agnew and T. Peatman (United Kingdom)
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
acoustic system with a standard sphere. It presents the results of an extensive calibration of a Simrad ... follows concerning the ramifications of calibration errors and variability on the accuracy of acoustic ... Abstract: This paper outlines the theory and procedures for calibrating an echo integration ... EK500 scientific echo sounder with a 120 kHz sprit-beam transducer in a refrigerated 10m deep tank ...
Meeting Document : WG-KRILL-92/17 : Author(s): D.A. Demer and R.P. Hewitt (USA)
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Bias in acoustic biomass estimates of Euphausia superba Dana to diel vertical migration
study was collected in the vicinity of Elephant Island, Antarctica during the Austral Summer of 1992 ... Abstract: The diel vertical migration of Antarctic krill (Euphausia superba) can greatly bias the ... sonar and independent of the time of day. To demonstrate and quantify these negative biases on both the ... 60 by 35 n.mile area immediately north of Elephant Island; the fifth survey covered a 1 n.mi.2 area ...
Meeting Document : WG-KRILL-93/48 : Author(s): D.A. Demer and R.P. Hewitt (USA)