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

   commercial concentrations of C. gunnari in years of high abundance of the species (1982/83, 1983/84 and 1986 ... may be used for clarification of survey techniques used in stock assessment. For a number of years ... years of high abundance of the species (1982/83, 1983/84 and 1986/87). Catch-per-hour of fishing was ... used in stock assessment. For a number of years scientists of AtlantNIRO have been conducting trawl ... Scientists of several nations have in recent years carried out stock assessment studies of channichthyids ... in years of high abundance (1982/83, 1983/84 and 1986/87). Catch-per-hour of fishing was analysed by ...

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

2. Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999

   (% ) Elephant South Shetland 1999 0 5 10 15 20 25 30 35 40 45 50 55 60 Length (mm) Fr eq ue nc y ... in one concentration can be as dense as 30 000 specimens per m-3 of water (Hamner et al., 1983 ... the ship’s log were used to determine krill distribution. A WP/42+42/94 x 4 pelagic trawl with 20 mm ... observed in the South Orkneys area. It must be emphasised that in the years immediately pre- ceding these ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Autor(es): Jackowski, E

3. Seasonal and inter-annual variability in the distribution of Electrona carlsbergi in the southern Polar Front area (the area to the north of South Georgia is used as an example)

   concentrations throughout the year. Results of surveys showed that the distribution and behaviour of E ... year is related to parameters of spatial and vertical distribution of fish. Interannual variability of ... concentrations. Over many years, the basic biological features, distribution patterns, areas, timing and ... in this area on board RV Vozrozhdenie. They worked for almost two years from October 1987 to June ... the southern border of the PFZ between 40° and 36°W, 30° and 25°W and 49° and 53°S (Figures 1 to 5) E ... time, E. carlsbergi concentrations were most frequently recorded in the eastern sector of the area (30 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 337–367 : Autor(es): Kozlov, A.N., K.V. Shust and A.V. Zemsky

4. Review of length-weight relationships for Antarctic krill

   have been established over the years for Antarctic krill Euphausia superba, but this information is ... 927mg 913mg 931 mg 912mg 860mg 796mg Data for February were collected in different years and ... of one month (Table 4). Because spawning may occur in different months during different years ... for wet wei~ht (in mg) and total length (AT in mm). Month Several years Several years ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 145–155 : Autor(es): Siegel, V.

5. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

   the spawning stock falling below 20% over the specified period (20 years is used here) should not be ... respectively. The effects of a constant catch level (in tonnes) over a 20-year period were evaluated. The ... , which means that they are based on a constant catch over a 20-year period, and as such they can be ... years from the two abundant cohorts of 1 500 tonnes, comprising 900 tonnes in the first year and 600 ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Autor(es): de la Mare, W.K., R. Williams and A.J. Constable

6. A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty

   ) 1.21 I 0 10 20 30 40 50 60 Length (mm) Selectivity (b) 1.6 1 1 0 2 4 6 Age (years) Relative ... Uncertainty (a) Run 1 Biomass (thousand tonnes) Recruits (millions) 0 10 20 30 40 50 Years (b) Run 2 ... 1 0.8 0.6 0.4 0.2 0 0 10 20 30 40 50 60 Length (mm) Proportion mature (b) 1.6 0 2 ... fishing regimes. This model considers a year of 360 days, consisting of 12 monthly (30-day) intervals ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Autor(es): Constable, A. and W.K. de la Mare

7. Observations on haul-out patterns and trends in the breeding populations of southern elephant seal at Península Valdés (Patagonia) and Stranger Point (25 de Mayo - King George I.)

   (van Aarde, 1980). In this paper we present information on the last seven years in two breeding ... °30' W). The other place was located at Peninsula Valdes (patagonia) (1981-1984). Censuses were ... corresponding to 27/10, rank ± 3 to Stranger Point and to 30/9, rank ± 5 to Peninsula Valdes. Besides, the ... the basis of a single census, at Stranger Point this should be carried out after the 30/10 (27/10 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 453-463 : Autor(es): Vergani, D.F., M.N. Lewis and Z.B. Stanganelli

8. Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons

   techniques, from 1991 back to 1977. The predicted age structure, dominated in recent years by the 1987 year ... . Breakdown in the credibility of the VPA results in most recent years is attributed to the invalid assumption ... -class (1 year olds in 1988), was quite robust, despite the use of various combinations of survey and ... proportion of 5 year olds, which was not observed during the survey on Falklands Protector in January 1992 ... . The predicted age structure, dominated in recent years by the 1987 year-class (1 year olds in 1988 ... recent years dominated by the year class spawned in late 1985/86, recruiting as 1 year olds in 1987/88 ... produced much lower estimates of abundance in the most recent years than MAFF5. The picture of year class ... year. Similarly in other years the assumed commercial age distribution will depend upon where the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Autor(es): Parkes, G.

9. Size compositions of males and females in the course of the life cycle of Euphausia superba

   , using samples from different years. The observed variations were related to stages of krill maturity ... ..... ... %30~ ! \:'" ,,-00, '"1 '\ 64-38S 47-00E if 16~ ~ 13.1.84 ,,/ \ 16.1.84 166 I ...:---'\. \! 20 ... ; / .- 10 .- I " I ,/ 0 0 .. n m", A BeD ... % % 30 100 54-13S 35-23W ci" 25 11.9.70 'f 48 20 ... \ \ , 19 , SI 60"" 0 AB C D 0 JII ., '(,,30 100 (lO 60-00S 55-20 18.12.74 !i'107 10 ... 0 I 3/1 ... A BeD % 58-01S 40-S6w 30 2.1.75 cl' 32 ~ 19 100 20 6b 10 0 0 JI IJ/I SI ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 3–16 : Autor(es): Makarov, R.R.

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

    ~ 28 ~ 27 + z 26 w -l I 25 (f) G: 24 + 23 22 20 22 24 26 28 30 32 34 MEAN FISH LENGTH ... z 2.6 0 f= u 2.5 w -l w 2.4 (f) +. 2.3 2.2 2.1 + 2.0 20 22 24 26 28 30 32 34 MEAN ... 25.92 27 20-35 3.78 25.72 26 21 -36 3.71 25.25 27 21 -31 3.69 25.11 26 14-30 3.31 22.53 27 20-34 ... - 42 29 13-44 30 20- 41 30 19- 43 31 ;35 22-48 19*;26 14-37 22;30 17-39 30-32 23-44 29-31 ;37 ...

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

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