Search results
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Detection of anti-brucella antibodies in pinnipeds from the Antarctic Territory
Abstract: This paper describes the first detection of Brucella sp. antibodies in seals from the ... weddellii) sera were tested by the Rose Bengal test (RBT), complement fixation test (CFT), immunodiffusion ... (AGID) and c-ELISA. Antibodies against Brucella sp. were detected with the RBT, the CFT and the c-ELISA ... in six of the seventeen samples involving the two animal species. It is concluded that a Brucella sp ...
Meeting Document : WG-EMM-01/46 : Author(s): P. Retamal, O. Blank, P. Abalos and D. Torres (Chile)
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Comparison of census methods for black-browed albatrosses breeding at the Ildefonso Archipelago, Chile
the Ildefonso Archipelago, Chile, for > 90 years the population has never been censused using ... scientifically defendable methods. To estimate population size, and examine the accuracy and practicality of ... various census methods, the population was censused in the 2002/03 breeding season using a) ground-truthed ... -distance sampling. Compared to ground-truthed aerial photography (judged the most accurate) yacht-based ...
Meeting Document : WG-FSA-06/12 : Author(s): G. Robertson, K. Lawton (Australia), C.A. Moreno (Chile), R. Kirkwood (Australia) and J. Valencia (Chile)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005
58.5.2 in the vicinity of Heard Island in June 2005 to provide the information for an assessment of short ... -term annual yield in the 2005/2006 CCAMLR season. This paper provides a preliminary assessment of yield ... for the area of Division 58.5.2 to the west of 79°20’ E using standard CCAMLR methods. It also ... considers the sensitivity of the assessment to (i) further consideration of the survey series and the ...
Meeting Document : WG-FSA-05/30 : Author(s): A.J. Constable, T. Lamb and R. Williams (Australia)
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Notification of research-in-progress in an Australian tuna fishery of relevance to the conservation of Convention Area seabirds
Abstract: This purpose of this document is to inform CCAMLR of work-in-progress in the Australian ... eastern tuna and billfish fishery (ETBF) of potential relevance to the conservation of Convention area ... seabirds. The research plan includes (a) a line weighting experiment on a chartered tuna vessel to ... determine the effect of line weighting regimes and bait type on the sink rate of longlines. This experiment ...
Meeting Document : WG-FSA-05/13 : Author(s): G. Robertson, B. Wienecke, K. Lawton and B. Baker (Australia)
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Variation in standing stock of the mackerel icefish Champsocephalus gunnari at South Georgia
Abstract: 1. Bottom trawl surveys on the South Georgia shelf indicate episodic declines in the ... abundance of the mackerel icefish Champsocephalus gunnari that, since 1990, are not directly attributable to ... commercial fishing. 2. The greatest effect has been observed in years when krill are known to have been ... scarce on the South Georgia shelf. 3. It is thought that C. gunnari survivorship is closely related to ...
Meeting Document : WG-FSA-99/63 : Author(s): I. Everson, G. Parkes (United Kingdom), K.-H. Kock (Germany) and I. Boyd (United Kingdom)
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A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80
Abstract: The stone crab Lithodes murrayi was exploited briefly off South West Africa between ... November 1979 and April 1980, the fishery being terminated when the catch per unit effort fell to an ... uneconomic level. The extent of the L. murrayi grounds is examined on the basis of catch-per-unit-effort data ... . The species is largely confined to a bathymetric corridor of 500–700 m off South West Africa. Prior to ...
Meeting Document : WS-CRAB-93/21 : Author(s): R. Melville-Smith (South Africa)
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Can acoustic methods be used to monitor grenadier (Macrouridae) abundance in the Ross Sea region?
Abstract: Grenadiers Macrourus spp. are the main bycatch species in the exploratory longline ... fishery for toothfish Dissostichus spp. in the Ross Sea, Antarctica. Ongoing monitoring tools are needed ... to assess stock status of grenadiers in the Ross Sea and to ensure ecological relationships are ... survey in February–March 2008 provide evidence that single targets close to the bottom over the Ross Sea ...
Meeting Document : WG-FSA-12/P11 : Author(s): R.L. O’Driscoll, S.M. Hanchet and B.S. Miller
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Changes to the Statistical Bulletin
Abstract: Two recent changes have impacted on the compilation of CCAMLR’s Statistical Bulletin ... ) a revision of the boundaries in Division 58.4.3 and adjacent areas (agreed at CCAMLR-XX). The ... as complete STATLANT data records include a reference to the split-year and month when fishing ... occurred. However, in a small number of historic datasets, the months are not defined and change (1) was ...
Meeting Document : SC-CAMLR-XXII/BG/07 : Author(s): Secretariat
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Quantitative assessment of benthic fauna and assemblages in the Heard Island and McDonald Islands region
Abstract: A benthic sampling program in the Heard Island and McDonald Islands (HIMI, CCAMLR ... Statistical Division 58.5.2) region was undertaken by the Australian Antarctic Division (AAD) from 2003 to ... 2008. Quantitative samples collected during three cruises by the fishing vessel Southern Champion from ... eleven geographic areas, using either a beam trawl or benthic sled, provide the most comprehensive ...
Meeting Document : WG-EMM-10/25 : Author(s): T. Hibberd, D.C. Welsford, A.J. Constable, K. Moore and S. Doust (Australia)
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Research plan for the 2017/18 exploratory longline fishery of D. mawsoni in Subarea 48.6 by South Africa and Japan
Abstract: South Africa and Japan made the next season’s (2017/18) research plan in Subarea 48.6 ... using the latest CCAMLR C2 and Observer data. We have used extracted data provided by CCAMLR secretariat ... on 10 th May, 2017. The estimated median stock size in research block 48.6_2, 48.6_3, and 48.6_4 was ... 5657.54, 5162.26, and 8211.25 tonnes, respectively, in Chapman method considering tags released in the ...
Meeting Document : WG-SAM-17/03 : Author(s): Delegations of Japan and South Africa