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1. 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 ... 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 ... Butterworth et al. (1994) where: 0 ; h(a + t) < l, - I,) ; l, < h(a, t) < l, ; h(a,t) > 1, (4 ... (equations 4 and B), the corners may be cut by linear interpolation, as shown in Figures 3a and 4a ...

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

2. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   large factor (assumed here to be 4), declining to normal levels again when krill return. This paper ... large factor (assumed here to be 4), declining to normal levels again when krill return. This paper ... est de 4 fois plus importante) pour redescendre a des niveaux normaux au retour du krill. Le present ... increased rapidly in recent years, to 4 million animals. Fur seal consumption of C. gunnari in both good ... . gunnari and krill in the diet of gentoo penguins. 4. Observations from the commercial fishery: (i ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Автор(ы): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

3. Acoustic estimates of krill density at South Georgia, 1981 to 1998

   ) being of the order of 20%. Demer (1994) has shown that in addition to sampling variance, survey ... Acoustic surveys at South Georgia over the past 20 years suggest that krill density around the island ... krill Euphnt~sia superba, around South Georgia. ICES C, CM 1/22: 4 pp. Boyd, I.L. 1993. Pup ... . Initial results from a fine- resolution model of the Southern Ocean. EOS, Trans. Am. Geophys. Union, 72 ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Автор(ы): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

4. Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90

   (2,5 T/yaC). B TeqeHHe nOCneAHHX nXTH ~Hefi ~ 0 5 4 6 ~ ~ arperaqHX, COXpaHXBLUaXCX Ha npOTXXeHHH ... , South Orkneys, aggregations, drift, distribution, CCAMLR INTRODUCTION of which only 35 thousand tonnes ... krill aggregation. Trawling velocity was about 3 to 4 knots in most cases. The trawl was lifted when ... 11-15 November 16-20 November 21-25 November 26-30 November Number of Vessels 2 2 2 ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Автор(ы): Sushin, V.A

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

   ) was employed. This trawl is made of kapron fibre netting with 20-45 mm mesh size with an inside ... -end indicated the occurrence of juvenile fish up to a depth of 500 m. - 60 - A 24-hour station ... 812.2 18 1928 107.1 16 183 11.4 13 482 37.0 - - - 4 0 0 1 6 6.0 Abundance indices for ...

   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

6. Some thoughts on precautionary measures for the krill fishery

   spawning biomass dropping below 20% of its pre-exploitation median level over a 20-year harvesting period ... is 10%; and the median krill escapement1 in the spawning biomass over a 20-year period is 75% of ... 66 64 62 60 58 56 54 52 "W 59 Figure 1: CCAMLR Statistical Subareas 48.1,48.2 and 48.3. Shaded ... survey. Document WG-Krill-92/4. CCAMLR, Hobart Australia. Croxall, J.P. 1984. Seabirds. In: Laws, R.M ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Автор(ы): Everson, I. and W.K. de la Mare

7. Seabird by-catch by autoline vessels: do line setters increase the sink rate of integrated weight longlines?

   surface were evaluated to five target depths: 2, 3, 5, 10 and 20 m. Of these target depths, sink time to ... Setting direction Pair ‘A’ 4 3 2 1 4 3 2 1 111 ... . corresponding to a standard devia- tion in time to a given depth of approximately 4 s). None of the pair-level ... . Treatment Target depths (m) 0–2 0–3 0–5 0–10 0–20 With 7.9 12.1 20.4 38.6 76.9 Without 7.4 12.9 20.7 ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 107–114 : Автор(ы): Robertson, G., J. Williamson, M. McNeill, S.G. Candy and N. Smith

8. Krill biomass assessment in Statistical Area 48 from the RV AtlantNIRO data - Autumn 1989/90

   600 S; 32° to 18°W) and southern (60° to 67°S; 20° to 18°W), was affected by different types of ... 60 miles by latitude and longitude and during the second survey it was 30 miles by latitude and 40 ... ::. ' .. 60 61 62 6"3 65 66 ..,."."'" S 67 i ~O 50 100 500 tOOO 5000 ·f ... from , the South Sandwich Island study area in March/April 1990. 119 49 47 AS 43 W 60 S 62 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 115–121 : Автор(ы): Fedotov, A.C.

9. Distribution, biomass and characteristics of the Euphausia superba fishery around South Georgia (Subarea 48.3)

   detailed surveys, which was made from 4 to 13 February 1975, as an example (see below - Survey 2). The ... quantitative indices for the E. superba population are given in Table 1. Figures 1 to 4 show survey areas and ... swarms were distributed in the upper layer from 12 to 35 m. These differences were taken into ... edge of streams flowing together from opposite directions. Survey 2 (4 to 13 February 1975, RV ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 123–147 : Автор(ы): Latogursky, V.I., R.R. Makarov and L.G. Maklygin

10. Potential interactions between wandering albatrosses and longline fisheries for Patagonian toothfish at South Georgia

    , satellite-tracking, South Georgia, wandering albatross INTRODUCTION Over the last 20 years wandering ... -May) we have a total of l 063 uplinks from 11 birds (7 males, 4 females), tracked for a total of 91 ... . (1992). That is, about 40% of locations are accurate to within l km. The remaining 60% are of ... Figure 4. This fishery operates mainly over the edge of the continental shelf at depths of around 1 000 ...

    Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 101–110 : Автор(ы): Croxall, J.P. and P.A. Prince

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