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Occurrence of Antarctic krill (Euphausia superba) concentrations in the vicinity of the South Shetland Islands: relationship to environmental parameters
krill fishing ground in the Antarctic, during the 1990/1991 austral summer. From early to mid-summer ... water circulation in areas of krill concentrations was characterized by a sluggish current with eddies ... residence time for krill. Diatom abundance in both the frontal and inshore zones increased from early to mid ... -summer, improving krill feeding conditions. Gravid females were closely associated with the frontal zone ...
Meeting Document : WG-EMM-98/18 : Autor(es): T. Ichii, K. Kayatama, N. Obitsu, H. Ishii and M. Naganobu (Japan)
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
Abstract: First attempts were made in the early 1980’s to estimate the krill and pelagic food ... -Antarctic Zone in the late 1980’s and early 1990’s when these areas were exploited commercially and a larger ... diets varies with time and location, and with the suite of prey types available in different regions in ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Autor(es): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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Conservation Measure Conservation Measure 209/XIX (2000)
out in accordance with the provisions of Conservation Measures 200/XIX and 29/XIX, except paragraph 3 ... pair of the open and closed strips using the process described above. 3. The following data and ... measure in accordance with Conservation Measure 65/XII: 1. Fishing for Dissostichus eleginoides in ... per country shall fish at any one time. 2. The precautionary catch for Statistical Division 58.4.4 ...
Conservation Measure : 209/XIX (2000)
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Integration of CPUE data into assessments using the Generalised Yield Model
/ Description: For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... standardised CPUE trends with those trends predicted by the GYM ailalyses, in each of the last three years WG ... and o2 from Differentiating with respect to q demor~strates that equations 2 and 3. I11 equation 5 ... standardised CPUEs in early and later seasons have been estimated'. Unfortunately, there is no clear way of ... been presented In CCAMLR as median abundance In each year with 95'% confidence Integration of CPUE ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Autor(es): Kirkwood, G.P. and A.J. Constable
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Diurnal changes of some biological characteristics of Euphausia superba Dana in swarms (westward of the South Orkney Islands, 24 March to 18 June 1990 - based on data reported by biologist-observer)
of swarms. When diurnal migration are absent (particularly at most later season) the diurnal changes ... with drift of swarm, but not with progress of life cycle at winter postspawning non-feeding season ... . They hardly can be related also with selective stress of fishery activity upon larger specimens of E ...
Meeting Document : WG-KRILL-92/09 : Autor(es): A.V. Vagin, R.R. Makarov and L.L. Menshenina (Russia)
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Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea
-larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... both ex situ and in situ with a mean difference <1.5 dB, although the differences between the ... ), some sizes of P. antarcticum could be confused acoustically with E. crystallorophias, but not with E ... and transversal –3 dB beam widths, were very similar. The trans- ducers were bolted, with their ... juvenile stages (size: 45–48 mm; age: second year), coinciding with an increase in lipid content in the ... experiments targeted at juveniles and post-larvae of P. antarcticum with a total length from 13 to 70 mm ... from 38 to 200 kHz, can predict the experimental TS measured both ex situ and in situ with a mean ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Autor(es): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi
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Further development of the fishery plans
established by the Scientific Committee and Commission. In recent years, Plans have been drafted for the krill ... and the information is now presented under 3 sections: 1. management measures and fishery requirements ... ; 2. operational aspect (i.e. “what really happened”); and 3. catches (STATLANT, fine-scale and in ...
Meeting Document : WG-FSA-SAM-04/04 : Autor(es): Secretariat
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Background and criteria of establishment of Marine Protected Area (MPA) in the Weddell Sea
Russian and German scientists in the eastern part of the Weddell Sea. Data on potentially valuable for ... commercial fishing species in the eastern part of the Weddell Sea collected by German investigators in 1979 ... -2014 in the eastern part of the Weddell Sea. Author(s): A.F. Petrov, V.A. Bizikov, K.V. Shust and ...
Meeting Document : WG-EMM-14/23 : Autor(es): A.F. Petrov, V.A. Bizikov, K.V. Shust and E.F. Uryupova (Russia)
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Conservation Measure Conservation Measure 227/XX (2001)
, and hauling times; (iii) number and species of fish lost at surface; (iv) number of hooks set; 3 ... vessel at any one time. 3. In order to give effect to paragraph 2 above: (i) the precise geographic ... , including those with the ‘jellymeat’ condition, shall be reported. 6. Each vessel participating in the ... appointed in accordance with the CCAMLR Scheme of International Scientific Observation, and where possible ...
Conservation Measure : 227/XX (2001)
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Potential nursery areas for fish in the Prydz Bay region
survey with a fine-meshed midwater trawl in Prydz Bay in January/February 1991 indicated the potential ... southern, eastern and western margins had low or zero catches. The length frequency distribution (Figure 3 ... reasonably well with the 0+, 1+ and 2+ year groups established by Hubold and Ekau (1986) for P. antarcticum ... PRYDZ BAY REGION R. Williams* * Abstract A survey with a fine-meshed midwater trawl in Prydz Bay ... nJIOIlla~b 3aJIHBa IIpIO~3 MO:>KeT CqHTaTbCSI yqaCTKOM OTKopMa. Resumen De un estudio realizado con ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Autor(es): Williams, R.