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1. Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using Japanese fishery data

   (Euphausia superba) associated with the daylight phase over the diurnal cycle (i.e. brightness categories ... austral summer and early autumn, deepened gradually from autumn and reached maximum depth in winter in the ... Scotia Sea, shifting to shallower depths again in early spring. The average catch-per-unit-effort (CPUE ... vertical migration and aggregation of Antarctic krill (Euphausia superba) associated with the daylight ... and SO. Daily average trawling depth tended to be shallower during austral summer and early autumn ... shallower depths again in early spring. The average catch- per-unit-effort (CPUE) was highest during the day ... and swarming associated with variations in daylight levels. In this study, average seasonal ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 163–172 : Autor(es): Taki, K., T. Hayashi and M. Naganobu

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

   fished and followed as they drift from the island with the current; and (iii) vessels return to position ... (i) when aggregations are dispersed or lost due to storms and other factors. The velocity of the ... as they drift from the island with the current; and (iii) vessels return to position (i) when ... aggregations are dispersed or lost due to storms and other factors. The velocity of the northeast drift of ... with a 78/420 m trawl was taken to be the standard fishing unit. It yielded the highest total catch of ... all vessels engaged in the fishery. 307 Calculations and mapping of fishing areas were made with ...

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

3. Observations of fishing operations on a krill trawler and distributional behaviour of krill off Wilkes Land during the 1985/86 season

   of fished swarms ranged from 100 m to 10 km with different distributions occurring in different ... off Africa. In recent years, the through-year activity of the trawlers has come to be incorporated ... to 10 km with different distributions occurring in different fishing areas. While catch per towing ... . Information utilized in this report was collected on board Zuiyo Maru No. 2 (3 023 tons, Hakodate Kokai ... according to the product. Fresh-frozen and boiled-and-frozen krill must be processed within 3 hours of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 335-368 : Autor(es): Ichii, T.

4. Krill fishing in the Scotia Sea in relation to bathymetry, including the detailed distribution around South Georgia

   this area but also operated further west on a range of banks associated with submarine valleys. The ... results are discussed in relation to the ecology of krill and the fishery's interaction with local ... with the main summer foraging area was greatest in the poor krill year of 1993/94 (Brierley and ... predominantly in this area but also operated further west 011 a range of banks associated with submarine ... valleys. The results are discussed in relation to the ecology of krill and the fishery's interaction with ... C R B KOHTeKCTe 3KOJIOrAI.I KpMnSI H B 3 a l l ~ o ~ e f i ~ ~ ~ M S I MeXAy IIpOMbICJlOM H ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 1–17 : Autor(es): Murphy, E.J., P.N. Trathan, I. Everson, G. Parkes and F.H.J. Daunt

5. Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area

   comprised two year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of ... 2001/02 year class lasted four months. This was estimated based on a retrospective count of daily ... increments. TL varied from 5.5 to 10.4 cm for fish in their first year (120–250 days) to 12.5–13.3 cm in 1 ... -year-old fish (477–533 days). The radius of the first annulus ranged from 0.7 to 1.3 mm. The ... –III have been observed throughout the year, while females with gonads at stage IV have only been ... shown in Figures 1, 2 and 3. For age-reading purposes, the Antarctic split- year system was used, in ... their fi rst year (fi rst-year fi sh); overwintered fi sh with the fi rst growth zone were called ... the 1999/2000 (5 speci- mens) and 2000/01 (20 specimens) split-years. The 1999/2000 year class ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Autor(es): Shcherbich, L.V

6. Integration of CPUE data into assessments using the Generalised Yield Model

   / Description:  For the last three years, CCAMLR's Working Group on Fish Stock Assessment (WG-FSA) has ... standardised CPUE trends with those trends predicted by the GYM ailalyses, in each of the last three years WG ... and o2 from Differentiating with respect to q demor~strates that equations 2 and 3. I11 equation 5 ... standardised CPUEs in early and later seasons have been estimated'. Unfortunately, there is no clear way of ... been presented In CCAMLR as median abundance In each year with 95'% confidence Integration of CPUE ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Autor(es): Kirkwood, G.P. and A.J. Constable

7. Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... both ex situ and in situ with a mean difference <1.5 dB, although the differences between the ... ), some sizes of P. antarcticum could be confused acoustically with E. crystallorophias, but not with E ... and transversal –3 dB beam widths, were very similar. The trans- ducers were bolted, with their ... juvenile stages (size: 45–48 mm; age: second year), coinciding with an increase in lipid content in the ... experiments targeted at juveniles and post-larvae of P. antarcticum with a total length from 13 to 70 mm ... from 38 to 200 kHz, can predict the experimental TS measured both ex situ and in situ with a mean ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Autor(es): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi

8. Potential nursery areas for fish in the Prydz Bay region

   survey with a fine-meshed midwater trawl in Prydz Bay in January/February 1991 indicated the potential ... southern, eastern and western margins had low or zero catches. The length frequency distribution (Figure 3 ... reasonably well with the 0+, 1+ and 2+ year groups established by Hubold and Ekau (1986) for P. antarcticum ... PRYDZ BAY REGION R. Williams* * Abstract A survey with a fine-meshed midwater trawl in Prydz Bay ... nJIOIlla~b 3aJIHBa IIpIO~3 MO:>KeT CqHTaTbCSI yqaCTKOM OTKopMa. Resumen De un estudio realizado con ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Autor(es): Williams, R.

9. Krill (Euphausia superba Dana) resources and distribution in the Wilkes Land area in the seasons 1986 to 1989

   involved in the survey with one vessel conducting commercial krill fishing. The whole survey area from the ... with the other three years, the total biomass of krill in the subarea in 1988 was smaller by a factor ... for Fisheries 3 The annual period used is the split-year 1 July to 30 June. Split-year is denoted by ... with one vessel conducting commercial krill fishing. The whole survey area from the coast to ... during surveys). The total krill biomass during the years of observation was from 1.4 to 2.3xl()6 tonnes ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 149–162 : Autor(es): Dolzhenkov, V.N. and V.P.Timonin

10. Distribution of krill (Euphausia superba Dana) catches in the South Shetlands and South Orkneys

    in all years 1988 to 1991. In 1987, 1988 and 1991, 75% of the catch in Subarea 48.2 between December ... , foraging ranges and population sizes from the literature are used to show that for some years catches ... fishery may have to increase by a factor of 2 or 3 before ratios of catch to consumption approach maximum ... was similar for each of the years examined whereas that for Subarea 48.2 changed each year (Figures 3 ... within 100 km of colonies during these months. 291 The years with the greatest fishery impact were ... 1989 in Subarea 48.1 and 1988 in Subarea 48.2 (Table 3). In these years, the catch within the 21 to 40 ... . Whilst the results in Table 3 indicate that for some months and years the catches within the foraging ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 287–303 : Autor(es): Agnew, D.J.

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