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Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993
Paper Title: Acoustic estimates of krill biomass in the Elephant Island area: 1981–1993 Abstract ... / Description: Acoustic estimates of krill biomass in the vicinity of Elephant Island are presented for the ... years 1981 to 1993 (with the exception of 1982 and 1986). Estimates for 1981 to 1991 are based on ... previous reports adjusted for the recently proposed definition of krill target strength (Greene et al ... Demer At the 1992 meeting of the CCAMLR Working Group on Krill (WG-Krill) a table of historical ... 1985. Klindt used the BIOMASS (1986) definition of target strength at 120 kHz adjusted to 150 kHz ... corresponding to the difference in target strength at 120 kHz using the modal krill lengths for each of the ... corresponding to the difference between the BIOMASS (1986) definition of target strength at 50 kHz and a ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 1–5 : Автор(ы): Hewitt, R.P. and D.A. Demer
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Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
Paper Title: Distribution and size–age composition of Antarctic krill (Euphausia superba) in the ... composition and biological condition of Antarctic krill (Euphausia superba) caught by the Russian krill ... distribution of size–age groups in association with particular water masses indicated that age 2+ krill ... dominated in cold Weddell Sea waters in the southern parts of the fishing area, while older age classes (3 ... composition of krill differed between 2009 and 2010 (Figure 6). In early January 2009, pre-spawning krill at ... stage VII in March (Figure 7b). Females at stage IV in January comprised less than 5% of all females ... an earlier stage of maturity than females. The pro- portion of males at stage IV decreased from about ... . Melnikov and Spiridonov (1996) reported consid- erable densities of E. superba larvae at older fur- cilia ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Автор(ы): Sologub, D.O. and A.V. Remeslo
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.
Paper Title: Distribution and population structure of Dissostichus eleginoides and D. mawsoni on ... composition, sex ratio and sexual maturity of Dissostichus eleginoides and D. mawsoni from BANZARE Bank were ... shallower banks (<1 000 m), while D. mawsoni was caught on deeper slopes (>1 500 m). Separation of the ... two species by depth may be related to physical intolerance to cooler temperatures because of the lack ... . eleginoides at depths ranging from 140 to 1 460 m and at tem- peratures in the near-bottom layer of 1.0–2.2°C ... noides) at South Georgia. Mar. Biol., 155 (5): 493–503. CCAMLR. 2006. Scheme of International ... seamounts, between 50 and 60°S, and on the Patagonian Shelf and the southern coast of Chile to 30°S ... POPULATION STRUCTURE OF DISSOSTICHUS ELEGINOIDES AND D. MAWSONI ON BANZARE BANK (CCAMLR DIVISION 58.4.3B ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Автор(ы): Taki, K., M. Kiyota, T. Ichii and T. Iwami
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On the instantaneous natural mortality rate of Champsocephalus gunnari, South Georgia (Subarea 48.3)
Paper Title: On the instantaneous natural mortality rate of Champsocephalus gunnari, South ... Georgia (Subarea 48.3) Abstract / Description: The instantaneous rate of natural mortality (M) of ... composition of catches from 1964/65 to 1968/69 and the age/length key for the first half of 1972 were used in ... the calculations. The results provided a wide range of estimates for M. The discussion of the results ... address the question once again in 1990 at the Ninth Meeting of CCAMLR. Taking the above factors into ... values M is taken to be the one at which the estimate of the independent parameter a is close to zero ... independent of time at which data on size composition was collected. Size composition components are ... done at various levels of natural mortality which were used to construct the following regression ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 313–326 : Автор(ы): Frolkina, G.A. and R.S. Dorovskikh
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Midwater trawl catchability in relation to krill and possible ways of assessing gross catch
Paper Title: Midwater trawl catchability in relation to krill and possible ways of assessing ... the basis of data obtained from AtlantNIRO expeditions from 1983 to 1990 in the Scotia Sea. A ... methodology was developed for and applied to determining the rate of krill filtration through the trawl rope ... and netting and also the probability that krill will come into contact with various parts of the net ... Modeling the Process of Krill Fishing In order to determine the rate at which krill pass through the ... , total catchability decreases. At the same time an assessment of krill escapement through the trawl ... . Implementation of this method meant that at any given moment it was possible to take a large volume of kriU in ... of kriU contact with the net at between 26 and 29%. Trawl 74/416 achieved a rate of 9.2 to 13.3% and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Автор(ы): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
Paper Title: Results of fish stock assessment survey, South Georgia, December 1987- January 1988 ... complements earlier surveys in the same area and showed that most of the stocks are continuing to decline ... . Notothenia rossii is showing no signs of recovery and Champsocephalus gunnari is likely to continue declining ... measures aimed at rebuilding the stocks of N. rossii and maintaining the other fish resources in the ... largest tow was at station 86, yielding 428 kg. This represents 13% of the catch of this species. Most of ... form a smaller mode at about 32 cm in 1987/88. Fifty percent of the fish in the 22 - 25 cm size range ... are mature (Lso) (Kock et al. 1985). based on survey catches 44% of the population was at or below ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Автор(ы): McKenna, Jr., J.E. and S.B. Saila
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Quantifying movement behaviour of vessels in the Antarctic krill fishery
Paper Title: Quantifying movement behaviour of vessels in the Antarctic krill fishery Abstract ... / Description: Ten years of recent fine-scale haul-by-haul krill data were used to characterise the behaviour ... of the krill fishery. Analysis of distance between hauls in relation to their catch level revealed a ... number of fishing grounds within this area. The same patterns were observed for vessels from other ... krill fishing operations and the ecosystem will need to capture, at least, the important dynamics of ... within the CAMLR Convention Area (Kawaguchi and Nicol, 2007). At the end of each fishing season, each ... ). Figure 1 is a schematic diagram of how the fac- tory operates on a conventional krill trawler. At the ... reservoir, resulting in a volume (Rn) of the initial catch. As the factory tries to operate at an ‘Optimal ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 131–148 : Автор(ы): Kawaguchi, S. and S.G. Candy
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Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses
Paper Title: Diet study of Antarctic toothfish caught in the east Antarctic based on stomach ... isotope ratios were determined and compared with those of species caught as by-catch and collected from ... lesser extent squid. FA profiles in muscle tissues of Antarctic toothfish were very similar to those of ... between them. δ 15 N values of Antarctic toothfish were higher than for the other species collected ... food categories con- sidered at a given taxonomic level. To assess the precision of the index values ... described by Metcalfe et al. (1966). The extracted lipids were saponified at 100°C for 2 h with 1.5 ml of ... analyser to oxidise at high tem- perature (1 030°C). The resultant gases of CO2 and N2 were introduced ... the number, 88.7% of the weight and 90.2% of the IRI (Table 3). It was assumed at the time that the ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Автор(ы): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*
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Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae
Paper Title: Feeding and food intake of Electrona carlsbergi (Tåning, 1932) Myctophidae Abstract ... by various methods was from 3.7 to 5.6% of fish body weight. The amount of food consumed by E ... . carlsbergi during the year in the waters to the south of the Antarctic Convergence is about 15 times fish ... during the cruise of RV Artemida. A sample of at least 25 fish were taken from every catch for ... basic data for estimation of the annual and mean daily food intake of fish at age 2 and 3. The annual ... 109.6 g or 1 480% of body weight. The annual food intake of females is estimated at 86.9 kcal. This ... 20.30 - 0.30 4 17.1 - 7.9 x at a digestion rate of 16.40/000 per hour xx at a digestion rate of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 411–416 : Автор(ы): Gerasimova, O.V.
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Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean
Paper Title: Distribution and abundance of Macrourus carinatus on BANZARE Bank in the southern ... Indian Ocean Abstract / Description: This paper provides an assessment of the distribution and abundance ... of Macrourus carinatus on BANZARE Bank in the southern Indian Ocean (Divisions 58.4.1 and 58.4.3 ... ) based on results from a trawl survey in 1999. This is the first quantitative assessment of M. carinatus ... interesting question to address once more data become available. At present, there are few estimates of ... provides the first quantitative assessment of this species at BANZARE Bank in the southern Indian Ocean ... located in the southern Indian Ocean on the border of Divisions 58.4.1 and 58.4.3 (Figure la). At 2 300 ... haul was conducted at one of five random locations. Alternative locations were provided in the event ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 171–178 : Автор(ы): van Wijk, E.M., A.J. Constable, R. Williams and T. Lamb
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