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1. Length-based assessment for mackerel icefish (Champsocephalus gunnari) at South Georgia

   of the regional density estimates per length bin, with the weighting being a multiplication of the inverse ... biomass being dealt with via the bootstrap pro- cedure and the use of the lower one-sided 95%ile. From ... described that removes the problem of cohort determination. A bootstrap technique (consistent with the ... data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of the ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 129–137 : Author(s): Hillary, R.M., C.T.T. Edwards, R.E. Mitchell and D.J. Agnew

2. On reproduction of Electrona carlsbergi (Tåning)

   ; in the notal zone males prevailed, the sex ratio being 1:0.9. In the notal zone the maturity coefficient ... . These eggs developed faster than the majority of cells and were usually being reabsorbed (Figure ... of the Southern Ocean. From materials available it has been ascertained that E. carlsbergi spawns in ... . Maturation of ovaries is continuous, and spawning is serial. The spawning season is long and coincides with ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Author(s): Mazhirina, G.P.

3. Trawl selectivity for Champsocephalus gunnari

   area. The trawl bags tested were made of net webbing with 3.1 mm twine and 88.2 mm mesh size. Trawling ... calculated using the collected data. It was found that the selectivity factor for 88.2 mm mesh size was 2.81 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 69–75 : Author(s): Efanov, S.F., G.E. Bidenko and V.A. Boronin

4. Target strengths of krill at 136 and 20 kHz

   transducer being used taking into account the shape of the distant difraction zone in the area being ... % being at Stage I. The overwhelming majority of females were immature; 80.4% were at Stage I. Krill ... of the Post-FIBEX Workshop in August 1984. BIOMASS Report Series No. 40. ANON. 1986. Post-FIBEX Acoustic ... . Ensonification of encaged live krill. For aggregations with mean lengths from 45 to 50 mm the mean single-krill ... target strengths range from-68 to-69 dB at 136 kHz. For aggregations with mean lengths from 43 to 47 mm ... . For aggregations with mean lengths from 47 to 50 mm the mean target strengths ranged from-71 to-75 dB ... . At the same frequency for aggregations with mean lengths in the range 41 to 47 mm the mean single ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Author(s): Kasatkina, S.M.

5. Location and intensity of the Soviet krill fishery in the Elephant Island area (South Shetland Islands), 1988/89

   npOMbICJIOBOe CY,l{HO pa60TaJIO B aTOM paHOHe B Te4eHHe 40% ,l{aHHOrO nepHO,l{a. HaHBbIcwa5.1 BeJIH4HHa C3ry ... fished and followed as they drift from the island with the current; and (iii) vessels return to position ... that the areas in which the fleet operated overlap a minor part of the foraging zones of krill ... predators. Based on this, and taking into account the low fishing intensity, it was concluded that the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 305–335 : Author(s): Sushin, V.A. and A.S. Myskov

6. Notothenia (P.) guntheri stock status and TAC estimation in the area of Shag Rocks (Subarea 48.3)

   .JHhIMM nOnpaB01.JHhIMM K03CPCPMQMeHTaMM, OhIJIa nOJIY1.JeHa OQeHKa 3anaca. MrHoBeHHhIA K03CPCPMQMeHT ... MHcTMTYTa phloHoro X03.HYlCTBa).,llJI.H Toro, 1.JTOOhI Y3HaTb KOHe1.JHYIO BeJIM1.JMHY K03CPCPMQMeHTa ... npOMhICJIOBOYl CMepTHOCTM OhIJIM MCnOJIb30BaHhI pa3JIM1.JHhle nonpaBKM: ,l(OJIrOCp01.JHa.H Cpe,l(H.H.H Be ... YCMJIMeM M MCnOJIb30BaHMe Cpe,l(HeB3BeWeHHOYl BeJIM1.JMHhI F. ,llo Ha1.JaJIa npOMhICJIa 1.JMCJIeHHOCTb ... -1987/88 were used to analyse N. guntheri stock status. On the basis of these data using VPA method with ... consideration the fact that in the 1986/87 season the recruitment in the first age group was not abundance of N ... demonstrates that at the current level of fishing (1987/88) the size of the stock of N. guntheri will remain ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 53-68 : Author(s): Shust, K. and R. Borodin

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

   be studied with as many observations being made as possible. These observations should be accompanied ... study area  perimeter. Mean krill transport rate was 7.2 tonnes/hour/n mile with a standard deviation of ... experiment, a preliminary estimate of krill outflow from the study area into adjacent areas would be ...

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

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

   AaHHbIx peKoMeHAyeTC5I, qTo6bl B 6YAYIl\eM C'beMKH npOBOAHJIHCh Ha MenKOBOAHbIX yqaCTKaX, BKnIDqaR ... CKYM6pHH B 3aBHCHMOCTH OT rJIy6HHbI (TpanoBaH C'beMKa, HIOH b-HIOJI b 1985 1'.) Ta6nH~a 2 nOKa3aTenH ... mile protected zone around South Georgia to the 500 m isobath were sampled with a specially designed ... obtain a more complete data set, it is recommended that future surveys should cover shallower water areas ...

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

9. Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf

   of fish feeding activity was also observed at night. Fishing during this period with bottom trawls ... may be used for clarification of survey techniques used in stock assessment. For a number of years ... observed at night. Fishing during this period with bottom trawls had yielded almost no catches at all. The ... information obtained on vertical migrations of C. gunnari may be used for clarification of survey techniques ... may then be used in improving trawl survey techniques. 2. MATERIALS AND METHODS The study used ... ). With the onset of dusk (17:00 to 19:00 hr) fish begin migrating to the upper layers and the size of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Author(s): Frolkina, J.A. and V.I. Shlibanov

10. Modelling krill recruitment

    other parameters consistent with the observed proportional recruitment parameters. A procedure is given ... for generating families of recruitment functions which are consistent with the statistical uncertainty ... : R( t ) for that simulation can be drawn from a normal distribution: 1-P I* a=-- k (28) where ... recruits, known as the R(t) rate, is the ratio of numbers in age class t to the numbers in that age ... to age n, and infinite thereafter, then in an equilibrium population the R(t) rate is: S can be ... guess for the iteration should be 541. Simulation tests show that the value of S calculated using ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Author(s): W.K. de la Mare

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