Search results
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Haul data analysis from the Polish krill fishery in 1997–1999
of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ... -time ones in the area of King George, however, in 1997 and 1998 the situation was the opposite. Author ... Abstract: The analysis of fishing data obtained from the ship’s log of the Polish commercial ... vessel M/T Pollux facilitated the characterization of catches and concentrations of krill between ...
Meeting Document : WG-EMM-00/17 : Author(s): E. Jackowksi (Poland)
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Fish by-catch in the krill fishery: 2017 update
evidence of an increase in the data quality from the observer scheme, as well as an increase in the ... reporting of fish by-catch in the commercial krill fishery catch data. There was a high degree of overlap in ... frequently reported in both datasets. The length-frequency distribution of all taxa for which >200 fish ... taken as bycatch in the krill fishery are consistent with those reported in the diet of ‘krill ...
Meeting Document : WG-FSA-17/04 : Author(s): CCAMLR Secretariat
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Physical forcing in the southwest Atlantic: ecosystem control
Abstract: In the southwest Atlantic sector of the Southern Ocean, temporal variability in the ... temperature at South Georgia shows the presence of high levels of autocorrelation, with periodicity evident in ... physical environment has been recorded since the early part of the last century. For example, ocean ... anomaly data for the El Niño 4 region in the Pacific show that variability at South Georgia also reflects ...
Meeting Document : WG-EMM-04/34 : Author(s): P.N. Trathan, E.J. Murphy, J. Forcada, J.P. Croxall, K. Reid and S.E. Thorpe (United Kingdom)
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DEFINING TAG RATES AND TACS TO OBTAIN SUITABLY PRECISE ABUNDANCE ESTIMATES FOR NEW AND EXPLORATORY FISHERIES IN THE CCAMLR CONVENTION AREA
formula that gives the expected coefficient of variation of the abundance estimate in terms of the number ... of releases and recaptures, which can in turn be expressed in terms of the tagging rate per tonne ... given precision in the Petersen abundance estimate. To show the reliability of the precision ... be extremely useful in terms of defining suitable catch levels and tagging rates required to obtain a ...
Meeting Document : WG-SAM-08/06 : Author(s): R.M. Hillary (UK)
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The US commercial krill fishery in Area 48: development, fishing patterns, and decision making
decision making processes involved in harvesting krill by the U.S. fishery. Because the Captain of the Top ... north of South Georgia; in 2001, all fishing was conducted off the South Shetland Islands and Bransfield ... Strait. In 2002, fishing operations were carried out off the Antarctic Peninsula, west of Elephant Island ... concentrations of krill were found in Bransfield Strait in 2001 while fishing inside the ice edge. The success of ...
Meeting Document : WG-EMM-02/18 : Author(s): C.D. Jones and M. Hull (USA)
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Report on scientific observations onboard the Chilean longliner, ‘Puerto Ballena’, in Statistical Subarea 48.3 from March to May 1996
Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 from March to May 1996. Details of the cruise ... -130 cm whith the proportion of females in the catch exceeding those of males in fish larger than 1 10 ... petrels were the most abundant species in the vicinity of the vessel when longlines were set. About 44 ... the vicinity of the vessel. Orcas in some cases caused a considerable loss of fishes from the lines ...
Meeting Document : WG-FSA-96/22 : Author(s): Selling, J., Kock, K.-H.
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The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary
is to present the analysis of data collected in the toothfish fishery for the 2003 season (this is ... presence of the huge C2 iceberg severely altered the fisher's behaviour in 2003. The vessels were ... . The catch of D. mawsoni was about 1070 t, and contributed 89% of the total catch in 2003. They were ... caught in over 90% of the sets in all five SSRUs fished. They were the dominant catch in all sets apart ...
Meeting Document : WG-FSA-03/44 : Author(s): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
Abstract: The waters in the vicinity of the South Shetland Islands and Elephant Island were ... biomass of krill in the 1990/91 austral summer. Main krill concentrations occurred in the shelf waters ... frequently occur), have elucidated the occurrence of convergent complex eddies in these shelf waters. (Note ... ground for krill.) High concentrations of chlorophyll a were also measured in the shelf waters, showing a ...
Meeting Document : WG-KRILL-91/22 : Author(s): Delegation of Japan
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Proposal for an extension to the mark recapture experiment to estimate toothfish population size in Subarea 48.4
assessment of D. eleginoides stock size in the Northern Area of 48.4 estimates a vulnerable biomass of ... 48.4 in the 2008/09 fishing season so as to allow for a full assessment of D. eleginoides stock size in ... introduced for bycatch species in the Northern Area of 48.4, set at 16% Macrourus spp. and 5% Rajid spp of ... between 1,000 to 2,000 tonnes. 3. The UK proposes to continue the mark-recapture experiment in Subarea ...
Meeting Document : WG-FSA-08/46 : Author(s): J. Roberts and D. J. Agnew (UK)
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Changes in the fish biomass around Elephant Island (Statistical Subarea 48.1) from 1976 to 1996
been exploited from 1978179 to 1988189 with most of the commercial harvesting taking place in the first ... two years of the fishery. Results of bottom trawl surveys conducted by Germany in the vicinity of ... Elephant Island in the 1980s showed that stocks of Champsocephalus gunnari, Notothenia rossii ... . Given the low abundance of C. gunnari and other species and the difficulties in managing fisheries which ...
Meeting Document : WG-FSA-97/27 : Author(s): Kock, K.-H.