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1. Status of the krill stock around Elephant Island in 1991/92 and 1992/93

   austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... other years appears to be associated with female maturity development and spawning during the early ... appeared to be affected by dense salp concentrations during 1992/93 and 1989/90. File:  02loeb-siegel.pdf ... . The length frequency distributions and maturity stage composition reflected relatively good year class ... . Loeb and Siege1 (Dlink/Dmax) *l00 Variable 1---10---20---30---40---50---60---70---80---90---~00 ST ... . Frequency % 12 "l l0 l6 20 26 30 36 40 46 60 66 80 Total Length (mm) Frequency % 10 16 90 26 SO S6 ... ST-4 3 ST-59 -7 ST-58 -L ST-71 ST-4 4 ST-72 (Dlink/Dmax)*100 Variable 1---10---20---30---40 ... ---50---60---70---80---90---100 (b) ST-1 - ST-2 ST-48 ST-8 l ST-2 1 ST-5 1 ST-52 ST-3 6 ST-3 7 ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Autor(es): Loeb, V. and V. Siegel

2. Changes in biomass of eight species of finfish around the South Orkney Islands (Subarea 48.2) from three bottom trawl surveys

   /90. The biomass of several species of finfish has been monitored through scientific bottom trawl ... were computed for the eight species of finfish which were most abundant in catches. Biomass levels and ... of recovery for N. rossii. However, overall levels of biomass indicate very little potential for ... the South Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989 ... conducted during daylight hours. The target time for a haul was 30 minutes, with any haul less than 20 ... increase in point estimate biomass levels for this species suggests an increase in population levels from ... after the closure of the area for finfishing and about 10 years after the peak of commercial fishing ... there was an apparent decrease in biomass for all other species in 1999, particularly C. gunnari. The ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 53–74 : Autor(es): Jones, C.D., K.-H. Kock and E. Balguerías

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

   in 1978/79, 1981/82 and 1986/87 Abstract / Description:  Trawl selectivity for several species of ... rates and catch composition. Details of these data were analyzed and minimum mesh sizes for several ... species were calculated. It is recommended that introduction of these mesh sizes should be considered for ... mm, to protect first spawners, or 100 mm, to give an age at first capture of 4 years; (ii) Fishery ... 23.6 cm. Lso values of 30 cm for mesh size 124 mm (Table 9) and of 29.4 cm for mesh 110 mm (Table 11 ... considered: ( a) Subarea 48.3 (i) Fishery targeted at C. gunnari 80 mm, to protect immature fish, or 90 ... Georgia. Fisch - Forsch., 20 (2): 49-53. KOCK, K.-H. 1981. Fischereibiologishe Uutersuchungen an drei ...

   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

4. Champsocephalus gunnari stock status in the South Georgia area

   / Description:  ata of age composition and fishing effort for 1976/77-1987/88 were used to analyse stock status ... recruitment was taken at the lowest possible level for all these years (400 million specimens). Catch-per-unit ... intensity was F 0.1. In the first two cases TAC=25-30 thousand tonnes and stock size does not change. For ... and TAC for C. gunnari. Stock estimates were obtained using VPA with the following variations: mean F ... possible level for all these years (400 million specimens). Catch-per-unit-effort was also taken at the ... was FO.1• In the first two cases TAC=2S-30 thousand tonnes and stock size does not change. For the ... C12ellHHH: B0312acT 2 90 2 20 2 60 3 60 1980/81 1981/82 1982/83 1983/84 17,02 5,87 25,97 98,63 71,49 ... Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table Legends Age (years) and weight (gr ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 1-18 : Autor(es): Borodin, R. and P. Kochkin

5. Geographical differences in the condition, reproductive development, sex ratio and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Subarea 88.1)

   South shelf North South break South shelf 100 90 80 70 60 50 40 30 20 10 0 North South break ... Fulton’s condition index (K) has been calculated for the five sampling seasons. This index assumes an ... essentially unimodal with the average value for all years occurring at about 141 cm TL for males and 152 cm ... with a 30 cm range over maturity (i.e. 85–115 cm TL). This equates to 50% maturity at about age 9. As ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Autor(es): Fenaughty, J.M

6. Size at sexual maturity of Patagonian toothfish (Dissostichus eleginoides)

   (Dissostichus eleginoides) caught in the commercial fishery within Subarea 48.3. The results for 1996 indicate ... that L m50 occurs at 78.5 cm total length for male and 98.2 cm for female fish. In 1997 the results for ... male fish were essentially the same. For female fish there is evidence that in 1997 a significant ... allowing for this bias indicates that L m50 for female fish in 1997 was no different to that for 1996. The ... leading to an enlarged ovary of about 20% of the fish total mass. Spawning occurs in the period July to ... 1996 and 1997 calendar years were prepared by the CCAMLR Data Manager and provided for the purpose ... fit logistic models with an additional parameter for non-response (usually called 'immunity' in the ... language of bioassay - see Finney, 1978, Chapter 20) to cater for the situation where a proportion (propn ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 37–46 : Autor(es): Everson, I. and A.W. Murray

7. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

   estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... for FAO Statistical Area 41, and CCAMLR Subareas 48.1, 48.2, 48.3, 48.6 and Division 58.4.2. Density ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ... Green et al. (1990). The new estimates were on average 4.76 times larger than the old estimates for ... densities reported in Anon. (1986) were derived using a TS value of -68.10 dB for a mean animal length of ... - equation 3) to provide an estimate for transect density (Pk). The mean density by stratum (PA) weighted by ... laill for an interval (set either on the basis of time or on distance steamed) of ship's track was ... surveys may also have been taken at different times of the season, but for some years it may be ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

8. Assessments of by-catch in trawl fisheries at Heard and McDonald Islands

   / Description:  This paper assesses the potential for the commercial trawl fisheries in the Heard Island area ... skates). The long-term annual yield for each of the three taxa was estimated using the generalised yield ... from the local area. Where possible, values for missing input parameters were obtained from the ... literature, for the same species from other areas, otherwise proximate data for similar species elsewhere in ... 0 20 0.2 for C. rhinoceratus WG-FSATWG-FSA-97/30). L. squainifrons 1 25 11 360 0.1 ... than 0.1 over a 20-year period. The lowest y satisfying these rules was determined for the three ... length at which the fish are fully represented in the sample (considered - to be Estimates of age for ... old. The maximum age is uncertain because it is currently based on an estimate from one fish. Also ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Autor(es): Constable, A.J., R. Williams and W.K. de la Mare

9. Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island

   examined for Adélie penguins over a period of 12 years. Data were collected from 1990/91 to 2001/02 at ... while other parameters, such as arrival counts and incubating nest counts, are more stable between years ... are critical for chick survival. There was a strong negative correlation between female foraging trip ... breeding success and foraging trip duration was low for males. Male foraging trips during the crèche period ... 90 30 / 11 / 19 90 05 / 12 / 19 90 20 / 12 / 19 90 25 / 11 / 19 90 18 / 12 ... (Kerry et al., 2000). For consistency, a similar subset of years was exam- ined in the correlation ... 97 30 / 11 / 19 97 03 / 12 / 19 97 20 / 12 / 19 97 21 / 11 / 19 97 20 / 12 ... 00 04 / 12 / 20 00 04 / 01 / 20 01 30 / 11 / 20 00 14 / 12 / 20 00 13 / 2 ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Autor(es): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell

10. Data on krill (Euphausia superba Dana) consumption by coastal fishes in Division 58.4.2 (Kosmonavtov and Sodruzhestva Seas)

    calculated for a depth range of 100 to 500 metres in waters between 30 and 80°E. Krill consumption was ... krill consumed is between 166 and 450 million tonnes; of this amount fish consume from 30 to 32 million ... fish and other species may differ significantly from those for specific areas. Localised assessments of ... krill consumption have thus far only been carried out for the Scotia and Lazarev Seas (Kock, 1985 ... for a depth range of 100 to 500 metres in waters between 30 and 80°B. Krill consumption was estimated ... aguas entre 30 y 80°B. Solamente se calcul6 el consumo de krill durante el verano (diciembre a abril ... this amount fish consumed 30 to 32 million tonnes. For the most part these figures are based on data ... Kosmonavtov Sea (area 8 x 104 km2) was determined by averaging trawl-acoustic data for the three years from ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 305–319 : Autor(es): Pakhomov, Y.A., V.A. Bibik and V.V. Gerasimchuk

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