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

   the South Orkney Islands (Subarea 48.2) suffered substantial declines from split-year 1977/78 to 1989 ... 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 ... 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 ... 1985 survey. However, biomass levels for only two species increased in 1999 over the 1991 survey, and ... 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 : Auteur(s): Jones, C.D., K.-H. Kock and E. Balguerías

2. Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the Global Procellariiform Tracking Database

   , unreported and unregulated (IUU) fishing. This paper presents an analysis of the distribution of albatrosses ... multiple data holders. The results highlight the importance of the Convention Area, particularly for ... importance for breeding albatrosses and petrels of regions north of the CCAMLR boundaries, particularly ... identified, especially relating to studies of nonbreeding distribution. These data will be essential for ... potential of these remote-tracking data for conservation applications, BirdLife International convened an ... for the estimation of distribution during the breeding season for all 20 albatross, petrel and ... Secretariat. An attempt was also made to analyse albatross and petrel distribu- tion separately for the ... ° was selected on the basis that this was likely to be the smallest practical unit for management on ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 143–174 : Auteur(s): BirdLife International (prepared by C. Small and F. Taylor)

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

   1996 Abstract / Description:  This paper describes the results of an experiment conducted from 19 ... a product of two variables integrated over the depth range 0 to 200 m: krill density (g/m 3) and ... periphery of ACC. Based on estimations of krill density and geostrophic velocities obtained during the ... for calculating actual total biomass of krill I n recent years , m o s t s t u d i e s a i m e d ... boundaries, both to be -0.05 S,, based on values of 0.77 S , for in terms of the amount of transported ... . Devitsin for their assistance. REFERENCES Everson, I. and de la Mare W. 1996. Some thoughts on ... describes the results of an experiment conducted from 19 February to 7 March 1996 to assess krill flux ...

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

4. Analyses of acoustic line-transect data from the waters around South Georgia: estimation of krill (Euphausia superba Dana) – biomass

   155 786 km 2 was estimated to be 1.8225 x 10 6 tonnes (Coefficient of Variation = 9.5%). This gives an ... . An estimate of the mean bottom depth was available for each section. The CTD profiles collected at ... was obtained for an area approximately 1.63 x 105 km2, which compares with the 1.56 x 105 km2 used in ... may be available in the region in any year. For 6.7 x 106 tonnes to be available in a year and ... Analogue echo-integrator was used for the study. The echosounder was calibrated on 22 November and 23 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 225–243 : Auteur(s): Murphy, E., I. Everson and A. Murray

5. Protecting young fish and spawning aggregations of Champsocephalus gunnari in Subarea 48.3 (South Georgia): a review

   , and a strategy for the future protection of young fish and spawning aggregations of C. gunnari in ... of each year and end on 30 November of the fc%owing year. References SC-CAMLR, 1984, para raphs ... , paragraphs 9.1 and 9.2). This runs from 1 December to 30 November, and has specific implications for the ... year. MECHANISMS AVAILABLE FOR PROTECTING YOUNG FISH AND SPAWNING AGGREGATIONS Gear Regulations ... its first meeting in 1984. In that year the Scientific Committee noted that 'an extremely useful ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 75–86 : Auteur(s): Parkes, G.B

6. Environment–krill relations in the South Georgia marine ecosystem

   variability and it is only recently that physical datasets have been generated for the Southern Ocean. In this ... northeastern Scotia Sea around South Georgia for the period from 1974 to 1992. These indices were examined in ... be a useful index for some regions. Associations with ice-edge position and atmospheric components ... were only expressed strongly in years of extreme conditions. The correlation with water temperature was ... longitudes 20°, 30°, 40' and 50°W. For the period 1973 to 1989, a further sea-ice dataset was available ... : (a), (b), (c) - in the same year; (d) - ice-edge position at 30°W averaged for December-January and ... the manuscript and Dr J.P. Croxall, Prof. Antezana and Dr S. Nicol for valuable comments on an ... from standard meteorological charts of the South Atlantic for the 26-year period from 1965 to 1991 ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 13–30 : Auteur(s): Fedoulov, P.P., E. Murphy and K.E. Shulgovsky

7. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

   target or station net hauls is described. This composite index is compared with an index where density ... successful recruitment year due to krill spawned in 1994/95. File:  06watkins.pdf ... on density data derived from acoustic surveys and on length-frequency data obtained from either ... recruitment index is dependent on the separation of krill into year classes. This is not an easy task and an ... factors provide an extra level of complication when deciding on the appropriate year classes. The ... per haul have been measured the numbers were left as raw numbers. Here I consider two methods for ... distribution for all nets in an area I calculate the absolute number and weight of krill in each size class ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L

8. Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas

   age of first recruitment is also an important consideration. The simulated yields correspond, on the ... Islands areas Abstract / Description:  The benefits of conservation measures are generally based on the ... rebuilding of the depleted stocks and improvement in yields. It is desirable that such measures be based on ... the expected rate of recovery relative to rates of fishing. A simulation model based on a ... about 4 times the initial yield at the end of the 20-year simulation, doubling in four years for both ... standard errors are also produced for each of the 20-year runs. For each set of parameters, ten ... for South Georgia stocks and 19 to 22 for Kerguelen stocks. The averages of the ten 20-year ... . Average of the Ten 20-Year Projections for Stock Size in Numbers (X 10- 6 ) and Weight (X 10-3 ) Stock ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Auteur(s): Hennemuth, R.C., K.D. Bisack and G. Duhamel

9. Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast

   ) off the Chilean coast Abstract / Description:  Existing information from technical publications on ... 50~-------------------------------------------- 40 30 20 10 0 40 50 40 30 20 10 ... in this paper can, therefore, be used by the CCAMLR Working Group on Fish Stock Assessment for ... together for the analysis (Table 1, data from SRL, 1987 for VIII Region and original data for X Region ... . 1. INTRODUCTION Exploratory fishing for the Patagonian toothfish (Dissostichus eleginoides, Smith ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 107–119 : Auteur(s): Moreno, C.A.

10. Midwater trawl catchability in relation to krill and possible ways of assessing gross catch

    methodology was developed for and applied to determining the rate of krill filtration through the trawl rope ... midwater trawls in the krill fishery indicates that the potential exists for this efficiency to be ... gross catch Abstract / Description:  Research into midwater trawl catchability rates was carried out on ... as it passes through the trawl sides. Studies were based on the results of 250 hauls made with a 72 ... assessing gross catch by integrating the methods mentioned above. Yu.V. Zimarev was responsible for ... has been reduced to two systems of parallel lines, has produced the following expression for ... Rhomboid a=lOO (30) mm a=80(20)mm a=60 (18) mm 0.2 0.2 0.2 Hexagonal a=lOO (20) mm a=80 (14) mm a=60 ... 70 60 50 40 ~ 30 I» o ~ 20 g. f 10 \-l o 0,9 10,7 20,5 30,3 40,1 ~9.9 59,7 3 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 87–113 : Auteur(s): Zimarev, Yu.V., S.M. Kasatkina and Yu.P. Frolov

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