Search results
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Risk assessment framework for subdividing the krill catch trigger level, including relevant background data and information
CM 51-07, which is due to lapse at the end of the 2015/16 fishing season, and presented its ... undertaken to further develop a risk assessment approach to spatially subdivide the trigger level for krill ... pass these with a commentary on to the Scientific Committee to support its review and advice on CM 51 ... -07 to the Commission. This risk assessment framework aims to minimise the risk to predator ...
Meeting Document : SC-CAMLR-XXXV/BG/37
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Ecological games in space and time: the distribution and abundance of Antarctic krill and penguins
Abstract: The distribution and abundance of organisms are affected by behaviors, such as habitat ... , environmental conditions, and the biology of the species involved. Although extensive theoretical work has ... explored predator–prey dynamics, these models have not considered the impact of behavioral plasticity and ... life-history trade-offs on predicted patterns. We apply a modeling method that allows the consideration ...
Meeting Document : WG-EMM-03/33 : Author(s): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)
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On the intensity of sampling krill trawl catches
Abstract: This paper uses actual krill length frequency data in an attempt to address the problem ... from commercial catches. In addition, the possible effect of two other factors (within-trawl ... . The attention of WG-Krill is drawn to the following: * All measurements of length from commercial ... the minimum length differences between-catches which should be detectable. As far as possible ...
Meeting Document : WG-KRILL-90/27 : Author(s): D.G.M. Miller (South Africa)
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Polish krill fishery in the 1991/92 and 1992/93 seasons results of catches and biological investigations
Abstract: Poland began krill fishing operations in the 1976/1977 season. It has been engaged in ... krill commercial fishery since the 1986/1987 season. Maximum catches, equalling 15.9 thous tonnes. were ... , attained in the 1992/1993 season. The report presents an analysis of Polish krill catches in the 1991/1992 ... and 1992/1993 seasons. CPUEs by month in individual subareas of the Atlantic sector of the Antarctic ...
Meeting Document : WG-Krill-94/09 : Author(s): J. Sosinski and Z. Cielniaszek (Poland)
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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)