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Some notes on by-catch of fishes caught by the fishery vessel Niitaka Maru in the vicinity of the South Shetland Islands (December 2000 to January 2001)
by F/V Niitaka Maru (3910t) were made from 16 December 2000 to 26 January 2001 in the vicinity of the ... South Shetland Islands. Among 103 net hauls quantitatively examined, by-catch fishes were found in 41 ... trawl catches. Lepidonotothen larseni was the most abundant in number and weight and occurred in 20.4 ... the second in abundance in number and weight respectively. Most hauls were dominated by one species ...
Meeting Document : WG-EMM-01/50 : Autor(es): T. Iwami, S. Kawaguchi and M. Naganobu (Japan)
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Some components of uncertainty in the CCAMLR 2000 acoustical survey of krill
Abstract: Quickly studied and quantified were sources of uncertainty in the CCAMLR 2000 ... acoustical estimate of krill abundance in FAO statistical area 48. The variance in system calibration was ... evaluated in relation to the effects of variant water temperature and salinity on sound speed, sound ... absorption, and beam characteristics. Uncertainty in krill target strength (TS) was estimated using a ...
Meeting Document : WG-EMM-00/49 : Autor(es): D.A. Demer (USA)
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On the state of Champsocephalus gunnari stock in Subarea 48.3 and methods of its assessment
Abstract: The unusually effective fishery on mackerel icefish (C.gunnari) in the South Georgia ... thousand tons, and the followed bottom trawl surveys by Russia and Great Britain in December 1999- February ... ) both during the period of the icefish fishery in 1980s and after its ceasing in 1990s. In all cases, a ... mm is allowable that results in selectivity and capturing of a high number of small fish ...
Meeting Document : WG-FSA-00/45 : Autor(es): K. Shust, V. Senioukov, P. Gasiukov and A. Kozlov (Russia)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1992 winter and 1992/93 pup-rearing season
Abstract: Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ... the third consecutive winter and fifth consecutive summer at Bird Island, South Georgia. In the 1992 ... males, the main element of the population seen ashore at Bird Island at this time of year. In the summer ... ) was similar to previous years. The increased incidence of entanglement in both winter and summer is ...
Meeting Document : SC-CAMLR-XII/BG/06 : Autor(es): Delegation of United Kingdom
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Preliminary results of the Polish commercial krill fishery in the Antarctic during 1990/91 season
Abstract: Four Polish commercial trawlers participated in the krill fishery in 1990/91 season on ... the fishing grounds in statistical Sub-areas 48.2 and 48.3. In total 9 333.7 tonnes of krill were ... harvested. As the fishery data were not fully analysed yet no clear trends in catch-per-unit-effort for ... (Poland) Title: Preliminary results of the Polish commercial krill fishery in the Antarctic during 1990 ...
Meeting Document : WG-KRILL-91/36 : Autor(es): I. Wójcik and R. Zaporowski (Poland)
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TOWARDS THE BALANCED STOCK ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
toothfish in the Ross Sea. One of them, the CASAL model, (Dunn & Hanchet, 2007; Bull et al., 2007) is ... ) data. Besides that, some sorts of data, e.g. tagging data, are used in these models in quite different ... information was also quite different: while in TISVPA all sources of data gave rather coherent signals about ... the stock (Vaslilyev et al., 2007), in CASAL the solution was mostly supported by signals from tagging ...
Meeting Document : WG-SAM-08/08 : Autor(es): D. Vasilyev and K. Shust (Russia)
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Distribution, biomass and abundance of Antarctic krill in the vicinity of Elephant Island during the 1996 austral summer
Abstract: Results from two acoustic and net surveys conducted in the vicinity of Elephant Island ... during the 1996 austral summer indicate very good krill recruitment from spawning in 1994/5. Areas of ... than 200m. One-year old juvenile krill numerically dominated catches during the first survey in January ... during the second survey in February-March. Intermediate size krill were caught in very low numbers ...
Meeting Document : WG-EMM-96/23 : Autor(es): Demer, D.A., Hewitt, R.P., Loeb, V.
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Comparisons in diet between diurnal and overnight foraging chinstrap penguins at Seal Island
. Diet mass estimated from digested and intact stomach contents indicates that krill were predominant in ... respectively. The highest intake of fish was observed in 1993/94 when krill abundance was very low. Calorific ... ) and an overnight forager (5732 kJ) based on available input parameters. A comparison of krill in the ... diet and those in the foraging areas indicates that diurnal foragers took krill in the inshore region ...
Meeting Document : WG-EMM-96/55 : Autor(es): Hayashi, T., Ichii, T., Cameron, M.F., Miura, A., Jansen, J.K., Bengtson, J.L., Boveng, P.
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1994 winter and 1994/95 pup-rearing season
Abstract: Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ... , being 92% lower than in 1993 and 97% lower than the record 1992 winter. Nearly all animals involved were ... juveniles. Of entangled animals the proportion of males affected was 67%, approximately the same as in 1993 ... and 1991, but two-thirds of the value recorded in 1990 and 1992. The proportion of entangled animals ...
Meeting Document : SC-CAMLR-XIV/BG/08 : Autor(es): Delegation of the United Kingdom
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Large scale circulation in the South Atlantic: estimates from giant iceberg drift rates
Abstract: The paper reports work currently in progress and presents estimates for ocean ... circulation in the Scotia Sea. The estimates are derived from the drift rates of giant icebergs calved in the ... Weddell Sea since 1974. Comparison with other estimates is limited by the lack of studies reported in the ... literature, however, efforts to make these comparisons are in hand. Author(s): P.N. Trathan and C. Symon ...
Meeting Document : WS-Flux-94/06 : Autor(es): P.N. Trathan and C. Symon (United Kingdom)