Search results
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Method for collecting of data on traumatic death of krill passed through the trawl meshes
different constructions including beam-trawl for several last decades. Not all krill in harvesting zone of ... krill individuals some part of them could pass through cover of net bag and escape of catch. In contact ... with threads of the net bag some of them may receive possibly lethal mechanical damage. Proposed method ... bag, only for fishing with hauling of full net for catch extraction. The analogous rating for fishing ...
Meeting Document : WG-EMM-12/43 : Author(s): V.V. Akishin, I.G. Istomin, V.A. Tatarnikov, A.F. Petrov and R.O. Lebedev (Russia)
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Final report of scientific observation of commercial krill harvest aboard the Japanese stern trawler Niitaka Maru, 13 December 2000–26 January 2001
measurements of krill, product types are described in the report. The trawler made an anti-clockwise trip ... Scientific Observers Manual. Summary of the fishing efforts, processing, fish by-catches, biological ... could not catch in the other locations. The patches seemed to be relatively dispersed compared to the ... scientific observation of commercial krill harvest aboard the Japanese stern trawler Niitaka Maru, 13 ...
Meeting Document : WG-EMM-01/38 : Author(s): T. Hayashi, S. Kawaguchi and M. Naganobu (Japan)
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Midwater trawl catchability regarding quantitative estimation of krill biomass using the method of trawling surveys on abundance
distributional pattern in the surveyed area enable to increase reliability of the biomass estimates. Comparative ... taken as an example, proved the latters not to be suitable for krill biomass estimation using method of ... trawling surveys on abundance. Small research trawls were found to have high catchability variations in the ... surveyed ground and the biomass estimates were characterized by high relative error. Standard methods of ...
Meeting Document : WG-KRILL-91/32 : Author(s): S.M. Kasatkina (USSR)
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Implementation of the CCAMLR Scheme of International Scientific Observation during 2018/19
on data received by the Secretariat up to 18 September 2019). Developments in the Scheme of ... Abstract: This paper provides details of SISO observer deployments during the 2019 season (based ... Title: Implementation of the CCAMLR Scheme of International Scientific Observation during 2018/19 ... International Scientific Observation Programme are discussed, and results presented from the vessel tagging pro ...
Meeting Document : WG-FSA-2019/15 Rev. 1 : Author(s): CCAMLR Secretariat
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A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty
flexibility for assessing the influence of different patterns of growth, natural mortality, spawning and ... fishing on the estimates of yield per recruit. Also, it can be used to evaluate the performance of a stock ... each year by integrating a set of differential equations which incorporate functions that specify the ... seasonal patterns in fishing mortality, at specified time intervals during the year. This general approach ...
Meeting Document : WG-FSA-95/41 : Author(s): de la Mare, W.K., Constable, A.J.
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Progress report of the CEMP Special Fund project to develop an image processing software tool for analysis of camera network monitoring data
Abstract: We provide a brief update on the progress of our CEMP Special Fund project ‘Developing ... an image processing software tool for analysis of camera network monitoring data’. The project was ... initiated with support from the CEMP Fund in 2015/16. A software programmer has been engaged and is ... post-processing code according to specifications developed in consultation with the CCAMLR camera user ...
Meeting Document : WG-EMM-17/10 : Author(s): C. Southwell, L. Emmerson, K. Newbery, J. Hinke, G. Watters, M. Santos, G. Milinevsky, M. Korczak-Abshire, N. Ratcliffe and P. Trathan
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Effect of two natural repellents on the depredation of mackerel baits by white-chinned petrels (Procellaria aequinoctialis)
. We report preliminary testing of potential seabird deterrents in longline fisheries around the sub ... . Pierre (New Zealand) Title: Effect of two natural repellents on the depredation of mackerel baits by ... . Petrels readily consumed all untreated baits. However, there were significant differences among the six ...
Meeting Document : WG-FSA-07/18 : Author(s): N. Gasco (France) and J.P. Pierre (New Zealand)
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Observation of fishing operation and distributional behaviour of krill on a krill trawler off Wilkes Land during the 1985/86 season
judge the towing direction. Size of fished swarms ranged from 100 m to 10 km with different distribution ... operation was described in detail. Fish finder was most useful in detecting swarms while sonar was used to ... in different fishing areas. While catch per towing time reflects within-swarm density catch per day ... was thought to be a good index to measure abundance of concentration. Comparison of such index across ...
Meeting Document : SC-CAMLR-VI/BG/35 : Author(s): T. Ichii (Japan)
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Dynamics of abundance and state of Notothenia rossii rossii stocks on the Kerguelen Island shelf
Abstract: Population structure and dynamics of the abundance of Notothenia rossii rossii on the ... Kerguelen Island shelf from the beginning of the fishery to 1984 has been examined.Total and commercial ... calculation by mathematical modelling.Comparative estimates of the abundance and recruitment-remainder ratio ... for the period of 1970-1984 have been presented, the average age of recruitment has been stated ...
Meeting Document : WG-FSA-90/41 : Author(s): P.B. Tankevich and V.A. Shlyakhov (YugNIRO, USSR)
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Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal and behaviour for krill distribution
the regional and local-scale processes that influence the distribution of krill in CCAMLR Area 48 ... Abstract: Effective management of the Antarctic krill (Euphausia superba, hereafter krill ... ) fishery requires an understanding of the controls on the distribution and abundance of krill ... . Particularly important are the pathways and timescales of movement and retention affecting krill distribution ...
Meeting Document : WG-EMM-17/31 : Author(s): S. Thorpe, E. Young and E. Murphy