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1. Results of fish stock assessment survey, South Georgia, December 1987 - January 1988

   complements earlier surveys in the same area and showed that most of the stocks are continuing to decline ... in abundance. File:  02-McKennna-and-Saila.pdf ... these stocks was carried out from December 1987 to January 1988. It complements earlier surveys in the ... no signs of recovery and Champsocephalus gunnari is likely to continue declining in abundance ... stocks have been declining since the late 1970's (Kock 1985,1986; Gabriel 1987). In the early 1970's the ... tonnes in a season (Kock 1986). The decline in abundance of this species since that time has been ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Autor(es): McKenna, Jr., J.E. and S.B. Saila

2. Trawl selectivity for Champsocephalus gunnari

   selectivity for mackerel icefish (Champsocephalus gunnari L.), were collected in 1981 in the South Georgia ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 69–75 : Autor(es): Efanov, S.F., G.E. Bidenko and V.A. Boronin

3. Growth and natural mortality of Patagonian rockcod (Patagonotothen guntheri shagensis) from Shag Rocks shelf

   -weight data of research and fishery survey cruises in the Shag Rocks area from 1978 to 1986. The natural ... of natural mortality M=0.8 was used in calculations and the optimal age and length for harvesting ... calculated by using age and length-weight data of research and fishery survey cruises in the Shag Rocks ... within a range of 0.63 to 1.06. The mean value of natural mortality M=0.8 was used in calculations and ... . INTRODUCTION The Patagonian rockcod was first found on the Shag and Black Rocks shelf in 1974 and was ... its biology and population dynamics in these areas were initiated in 1973 when commercial catches ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 111–121 : Autor(es): Shlibanov, V.I.

4. Methods of age determination for mackerel icefish (Champsocephalus gunnari Lönnberg 1905) from the South Georgia Island shelf

   analyzing data on length frequency distribution of fish in catches simultaneously with otolith radii of fish ... taken in the period July to September. The latter was done using specimens from strictly defined age ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 37–49 : Autor(es): Frolkina, Zh.A.

5. Refinements to the strategy for managing depleted fish stocks based on CCAMLR objectives

   states of a depleted stock, and take into account uncertainty in assessments. Sample calculations show ... that applying a policy of F 0.1 will not always lead to stock recovery in two to three decades, and ... , and take into account uncertainty in assessments. Sample calculations show that applying a policy of ... F 0.1 will not always lead to stock recovery in two to three decades, and hence that additional ... ". 1. IN1RODUCTION In 1988 the Working Group for the Development of Approaches to Conservation (WG ... depleted populations" (CCAMLR-VII, paragraph 140). In 1987 the Commission adopted the yield-per-recruit ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 467–475 : Autor(es): de la Mare, W.K. and A. Constable

6. Target strengths of krill at 136 and 20 kHz

   . At the same frequency for aggregations with mean lengths in the range 41 to 47 mm the mean single ... -krill target strength is in the range-76 to-81 dB. File:  08-Kasatkina.pdf ... aggregations with mean lengths in the range 41 to 47 mm the mean single-krill target strength is in the range ... identified lower target strengths (by almost 10 dB) compared to those values used until now in biomass ... estimates as recommended by the Post-FIBEX Workshop (Anon., 1986). With this in mind the CCAMLR Working ... krill TS carried out by AtlantNIRO from 1980 to 1985. We feel that these may be useful in general ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Autor(es): Kasatkina, S.M.

7. Genetic variations and population structure of krill from the Prydz Bay region of Antarctic waters

   results of this study agree closely with genetic data from other studies on krill in the Atlantic sector ... under the above title in Polar Biology (1986) 6: 233–236. File:  13-MacDonald-et-al.pdf ... of krill. The results of this study agree closely with genetic data from other studies on krill in ... this paper is published under the above title in Polar Biology (1986) ~ : 233-236. VARIATIONS ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 271-273 : Autor(es): MacDonald, C.M., R. Williams and M. Adams

8. Estimating krill recruitment and its variability

   recruits in a population sampled by a net haul survey. Preliminary results from a series of five net haul ... surveys in the South Atlantic and the Indian Ocean sectors of the Southern Ocean give a mean recruitment ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... haul survey. Preliminary results from a series of five net haul surveys in the South Atlantic and the ... and Pitcher (1979), should be carried out in order to determine the proportion of recruits in krill ... samples collected in net surveys. This paper describes a method which has been developed along these ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Autor(es): de la Mare, W.K

9. The utilization of seabird censuses for krill monitoring

   :  The possibility of using bird observations made at sea as a means of monitoring krill in the Antarctic ... capable of detecting changes in bird abundance and/or species composition, associated with three levels of ... possibility of using bird observations made at sea as a means of monitoring krill in the Antarctic ocean is ... of detecting changes in bird abundance and/or species composition, associated with three levels of ... changes in the Antarctic ecosystem will first appear as changes in biological parameters of the species ... means of direct measurements. This represents a significant shortcoming in our capability to provide ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Autor(es): Marschoff, E.R., J.G. Visbeek and L.R. Fontana

10. New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands

    variations in abundance have been observed. During the sampling period the 1988 cohort was dominant on the ... . Only once have spawners been observed in large numbers on the inner shelf: during the winter of 1991/92 ... variations in abundance have been observed. During the sampling period the 1988 cohort was dominant on the ... . Only once have spawners been observed in large numbers on the inner shelf: during the winter of 1991 ... 1971/72, yielded annual catches up to 30 000 tonnes in the first years of exploitation (Gerasimchuk ... , 1993). Good catches occurred at about three-yearly intervals with very low catches in between ...

    Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Autor(es): Duhamel, G

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