Resultados de la búsqueda
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A brief outline of the biology of the Antarctic silverfish, Pleuragramma antarcticum Boulenger, 1902 (Nototheniidae) from the Antarctic Indian Ocean
Abstract: The Antarctic silver fish (Pleuragramma antarcticum) is one of the most numerous ... species in the outer waters of Antarctica. In the Indian sector of the Southern Ocean there are at least ... three relatively isolated groups. Fish aged from 0+ to 3+ years live in the epi- mesopelagic zone where ... 4-7 years of age. The potential absolute and relative fertility of this species is one of the ...
Meeting Document : WG-FSA-92/11 Rev. 1 : Autor(es): V.V. Gerasimchuk (Ukraine)
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Population structure of the Antarctic toothfish, Dissostichus mawsoni from the Areas 58 and 88 in the Antarctic Ocean based on mitochondrial and microsatellite DNA markers
Abstract: The Antarctic toothfish, Dissostichus mawsoni, serves as valuable fishery resources ... around the Antarctic Continent since 1997, managed solely by the Commission for the Conservation of ... crucial for improving fishery management of this species, the number of populations or stocks of D ... . mawsoni in this Antarctic region remains currently unknown. In the present study, we assess the population ...
Meeting Document : WG-FSA-2019/36 : Autor(es): H.-K. Choi, J.E. Jang, S.Y. Byeon, S. Chung, S.-G. Choi, H. W. Kim and H.J. Lee
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Catch per unit effort data from the early years of commercial krill fishing operations in the Atlantic sector of the Antarctic
Subareas 48.1, 48.2, 48.3 for the period 1975/76 to 1987/88. Comparisons are carried out between Subareas ... . Results show that the CPUE may differ between Subareas, years and shelf/oceanic regions. Obviously, a ... consistent pattern of CPUE values does not occur over time for the entire area. High average CPUE were ... observed in the years 1975/76 and 1980/81, wheras the lowest CPUE occurred in Subarea 48.3 in 1977/78. The ...
Meeting Document : WG-EMM-97/22 : Autor(es): Sushin, V., Siegel, V.
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Structure and distribution of the slope fish community in the vicinity of the sub-Antarctic Prince Edward Archipelago
Abstract: Demersal fish community structure, distribution and trophic relationships on the slope ... (depth range 200-1500 m) of the sub-Antarctic Prince Edward Islands and surrounding sea rises have been ... investigated during the pilot survey conducted in April 2001 onboard fishing vessel MV Ibis. A total of 56 fish ... taxa were collected during the survey, of which 43 were identified to species level, 8 to the genus ...
Meeting Document : SC-CAMLR-XXIII/BG/20 : Autor(es): Delegation of South Africa
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An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002
Abstract: Data from single and multi-frequency active acoustic surveys conducted annually in the ... vicinity of the South Shetland Islands, Antarctica were re-analyzed using updated procedures for ... compensating for diel vertical migration of krill outside of the acoustic observation window. Intra-and inter ... -seasonal variations in krill biomass density and dispersion were derived from the re-processed data set for ...
Meeting Document : WG-EMM-03/6 : Autor(es): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)
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Standing stock estimates of finfish biomass from the 2002 Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville Island
and the South Shetland Islands in January – February 2002 in close collaboration with the U.S ... distribution of the abundant fish species was provided. Estimates of total biomass for Elephant Island and the ... results obtained in 1998 and 2001 for most species. Length compositions in the most abundant species ... resembled closely those in previous years. The proportion of juvenile G. gibberifrons, the most abundant ...
Meeting Document : WG-FSA-02/24 : Autor(es): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
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On the need to determine the level of krill escapement mortality in the Antarctic krill fishery
Abstract: The krill escapement mortality and the methods to determine it are closely connected ... with the need to have systematic observer coverage in the Antarctic krill fishery. Experiments to ... trawling are added in form C1. It is proposed to add appropriate regulations to the Scientific Observers ... Manual and new suitable section to the Observer Cruise Report. The need to have observers collecting data ...
Meeting Document : WG-EMM-10/10 : Autor(es): L. Pshenichnov and G. Milinevsky (Ukraine)
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An assessment of the use of ocean gliders to undertake acoustic measurements of zooplankton: the distribution and density of Antarctic krill in the Weddell Sea
deployed in the Weddell Sea, Southern Ocean. The glider was deployed for two short periods in January 2012 ... , in separate survey boxes on the continental shelf to the east of the Antarctic Peninsula, to assess ... the distribution of Antarctic krill (Euphausia superba). During the glider missions, a research vessel ... using the stochastic distorted-wave Born approximation (SDWBA) target strength model. A sensitivity ...
Meeting Document : WG-EMM-14/P02 : Autor(es): D. Guihen, S. Fielding, E. Murphy, K. Heywood and G. Griffiths
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The Chinese national scientific observer program for the krill fishery in the Convention Areas from fishing season 2009/10 to 2014/15
Abstract: Since entered in the krill fishery in the 2009/10 fishing season, China has made every ... krill fishing activities. The Bureau of Fisheries (BoF), Ministry of Agriculture (MOA) of P. R. China ... has developed a comprehensive scientific observer training program and assignment scheme. During the ... past six fishing seasons, training courses were provided to the crew members, company managers as well ...
Meeting Document : SC-CAMLR-XXXIV/BG/28 : Autor(es): Delegation of the People’s Republic of China
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Parasites of the Antarctic toothfish (Dissostichus mawsoni Norman, 1937) (Perciformes, Nototheniidae) in the Pacific sector of the Antarctic
Abstract: The Antarctic toothfish (Dissostichus mawsoni Norman, 1937) is one of the main target ... species of commercial fisheries in the Antarctic. It is an endemic and is found along the shelf of ... Antarctica, as well as on the slopes of seamounts, underwater elevations and islands in the sub-Antarctic. It ... infection in the Pacific sector of the Antarctic. Specimens were examined during commercial longline fishing ...
Meeting Document : WG-EMM-16/P05 : Autor(es): I.I. Gordeev and S.G. Sokolov