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Комиссия по сохранению морских живых ресурсов Антарктики

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  1. Sources of variance in studies of krill population genetics

    Paper Title:  Sources of variance in studies of krill population genetics Abstract / Description ... :  There has been a long-term interest in the population genetics of Antarctic krill species because of ... their ecological and economic importance. The possibility that there are distinct genetic stocks of ... these species would affect the design of management strategies for their conservation. A recent ... polymerase (Promega) and 10 pmol of each primer were included. The reactions had an initial incubation at ... 72ºC 1 min for 40 cycles. A 6 min incubation at 72ºC followed to fi nish synthesis of incomplete ... for each individual. 10 μL of each completed PCR amplifi cation was restriction digested at 37ºC ... s st ud ie s of t hr ee k ri ll sp ec ie s. A ll st ud ie s to d at e us e ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 107–116 : Автор(ы): Jarman, S.N. and S. Nicol

  2. Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) from a trawl survey of the South Georgia shelf in June–July 1985

    Paper Title:  Distribution and relative abundance of juvenile icefish (Champsocephalus gunnari ... ) from a trawl survey of the South Georgia shelf in June–July 1985 Abstract / Description:  A trawl ... survey of the distribution and relative abundance of juvenile icefish (Champsocephalus gunnari) in South ... juvenile trawl of 13.6 m. The size range of juvenile icefish collected was 82–146 mm. Catches were the ... -bottom (2-5 m off the sea-bed), mid-Water and near surface. The duration of each haul was 10 minutes at ... station at one location was sampled with 16 tows. * the term "stratum" refers to the shelf zone of ... of 16 hauls was conducted to study vertical distribution of the juvenile mackerel icefish at one ... . The day-time catches of juvenile fish were in general 8.5 times higher than those at night. This ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 55-63 : Автор(ы): Boronin, V.A., G.P. Zakharov and V.P. Shopov

  3. Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ground of Subarea 48.1 during the 1990/91 austral summer

    Paper Title:  Abundance, size and maturity of krill (Euphausia superba) in the krill fishing ... ground of Subarea 48.1 during the 1990/91 austral summer Abstract / Description:  Acoustic and net ... sampling surveys for krill were conducted in the krill fishing ground north of the South Shetland Islands ... of krill were observed. The survey area was divided into four zones: oceanic, slope frontal, neritic ... at 200 kHz. The operating parameters of the acoustic system are summarised in Table 1. Throughout ... -Scattering Strength was continuously measured at the constant horizontal integration interval of 1 n mile ... strength measurements. The echo-integrator was calibrated with a hydrophone at the port of Tokyo before ... at a speed of about 3 knots, at pre-determined fixed locations (blind tows). When a dense swarm of ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 183–199 : Автор(ы): Ichii, T., H. Ishii and M. Naganobu

  4. Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area

    Paper Title:  Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari ... in the South Georgia area Abstract / Description:  The stocks of Notothenia rossii marmorata and ... estimates from surveys by the FRG. These data indicate that the stock of N. rossii in 1985 was about 2.5% of ... its pre-exploitation biomass, while the stock of Champsocephalus gunnari has fluctuated greatly with ... survivorship schedule, a range of alternatives must be considered. At one extreme, the survival rate can be ... - stock in the latter part of the 1970's, give some indication of the sustainable exploitation rate at ... would imply a maximum sustainable yield of 45,000 tonnes per annum at a recruited stock size of ... length distributions of the USSR catch at age samples are very dissimilar from FRG samples on which the ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Автор(ы): Cooke, J.G.

  5. Assessment of krill flux factors in waters of South Orkney Islands during summer 1996

    Paper Title:  Assessment of krill flux factors in waters of South Orkney Islands during summer ... 1996 Abstract / Description:  This paper describes the results of an experiment conducted from 19 ... ) was located in the zone of interaction between waters of the Antarctic Circumpolar Current (ACC) and ... in the past. The geostrophic transport of krill across boundaries of the study area was calculated as ... density profiles, both integrated over the depth range from 0 to 200 m at a resolution of 1 n mile of ... the study area at a speed of 8 knots, starting from the northeastern corner, to estimate parameters ... target strength was estimated at an operating frequency of 120 kHz using the following regression (SC ... 15 at points of water outflow away from the study area (Figure 2, Table 1). The dynamic structure ...

    Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Автор(ы): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin

  6. A simulation study of the method of deriving natural mortality rate using data for Champsocephalus gunnari in Subarea 48.3

    Paper Title:  A simulation study of the method of deriving natural mortality rate using data for ... Champsocephalus gunnari in Subarea 48.3 Abstract / Description:  A method of determining the rate of natural ... mortality, based on the construction of a regression between the rate of annual fishing mortality ... (determined by VPA) and fishing effort is described. The intersect of this regression must be equal to zero if ... verifying the natural mortality rate calculation held at the meeting of the WG-FSA (CCAMLR, 1990) indicated ... relationships of abundance dynamics N - N (-za,y) a+ 1,y+ 1 - a,ye where Sa is selectivity at age a ; Fy ... = 0, am = age at first maturity; where Cl> is an expression which describes dependence of ... weight-at-age (and fishing year); Na,O - distribution of abundance by age during the zero fishing year ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 69–83 : Автор(ы): Gasyukov, P.S. and R.S. Dorovskikh

  7. Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996

    Paper Title:  Areal and seasonal extent of sea-ice cover off the northwestern side of the ... Antarctic Peninsula: 1979 to 1996 Abstract / Description:  Analysis of seasonal sea-ice cover of an area ... measuring 1.25 x 10 6 km 2 off the northwestern side of the Antarctic Peninsula indicates that there were ... four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... between krill reproduc- tion, survival at early-life stages and sea-ice cover, the indices of ice cover ... June-July 1991 * NSIDC Distributed Active Archive Center, University of Colorado at Boulder, sidc ... EXTENT OF SEA-ICE COVER OFF THE NORTHWESTERN SIDE OF THE ANTARCTIC PENINSULA: 1979 TO 1996 R.P. Hewitt ... Southwest Fisheries Science Center PO Box 271, La Jolla CA 92038, USA Abstract Analysis of seasonal ...

    Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Автор(ы): Hewitt, R

  8. Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia

    Paper Title:  Comparison of age readings from scales and otoliths of the Patagonian toothfish ... compared for 105 specimens of the Patagonian toothfish (Dissostichus eleginoides) from the South Georgia ... region (Subarea 48.3). In 44% of specimens, age readings from both structures were identical. A Wilcoxon ... appropriate for determining the age of D. eleginoides because it does not underestimate age and is the most ... otoliths were attached to one piece of board, which were then sectioned at very low speed using a Isomet ... : where 1, is the length of an individual fish at age t; n, is the random variable which represents the ... ,) = oh2 for each age t ; g(t,@) is the growth model and represents the mean length at age t of the ... ) = E (ELIt) (average of all individuals at age t), 0 is the vector of parameters of h. If it is ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Автор(ы): Cassia, M.C

  9. Utilising data from ecosystem monitoring for managing fisheries: development of statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program

    Paper Title:  Utilising data from ecosystem monitoring for managing fisheries: development of ... statistical summaries of indices arising from the CCAMLR Ecosystem Monitoring Program Abstract / Description ... :  A potential method is presented for combining data collected as part of the CCAMLR ecosystem ... monitoring program (CEMP) into a single index for each of predator, prey and environmental parameters. The ... better reflect the interannual variability in the index than having a number of time series broken at ... which at least 50% (4) of the parameters are present for the full time series. In most treatments ... uncertainties or variability in the behaviour of those parameters. IDENTIFICATION OF ANOMALIES At its 1996 ... two sets of trials consist of one in which the value of is fixed at 10 years and another in which it ...

    Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 101–117 : Автор(ы): de la Mare, W.K. and A.J. Constable

  10. Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87

    Paper Title:  Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR ... in 1978/79, 1981/82 and 1986/87 Abstract / Description:  Trawl selectivity for several species of ... different characteristics of experimental codends, length frequency distribution of stocks sampled, catch ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... length at 50% maturity for the South Georgia area of 46 cm for males and 47.4 cm for females (Kock, 1981 ... values of Lso for South Georgia are well below the length at 50% maturity of 31.7 cm (Boronin and Altman ... length at 50% maturity for the South Georgia area of 23.1 cm (Kock, Duhamel and Hureau, 1985), and well ... at first capture of 4 years (Le. around 32 cm), which was proposed as the optimum under conditions ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Автор(ы): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias

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