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1. Note on estimating krill abundance from acoustic data on individual aggregations

   Abstract / Description:  The fundamental equations and assumptions underlying estimation of krill abundance ... using echo-integration information and aggregation parameters are briefly described. The chief ... differences of the two approaches are highlighted. It is concluded that the echo-integration approach is ... superior for the estimation of regional krill abundance and its variance since it is easier to apply ... ACOUSTIC DATA ON INDIVIDUAL AGGREGATIONS I. Hampton and D.G.M. Miller* Abstract The fundamental ... aggregation parameters are briefly described. The chief differences of the two approaches are highlighted ... . It is concluded that the echo-integration approach is superior for the estimation of regional kriU ... Africa 219 1. INTRODUCTION At its Second Meeting in Leningrad, the CCAMLR Working Group on Krill ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 219–223 : Автор(ы): Hampton, I. and D.G.M. Miller

2. Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen

   otoliths from reference collections were used to measure precision; relative bias for the age data was ... showed discrepancies due to gear-specific catchability, or differences in the available population with ... otolith was ground from the anterior end to give a transverse plane anterior of the nucleus. The plane ... for the age data was estimated to be –0.6 years and residual variance 2.9. Age distributions of ... in the available population with depth or season. Age–length keys were constructed for use in ... and whaling activity, current large-scale exploitation in the Antarctic targets on krill and fi nfi ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Автор(ы): Ashford, J., G. Duhamel, C. Jones and S. Bobko

3. Can we satisfactorily estimate variation in krill abundance?

   from data reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR ... fishery induced variation. The timescale for such information is discussed in the light of the needs of ... reported to the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) does not ... variation. The timescale for such information is discussed in the light of the needs of fishery management ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Автор(ы): Everson, I.

4. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

   eleginoides) were examined using data from approximately 7000 fish sampled by observers from the 1998 fishery ... around South Georgia and Shag Rocks (Subarea 48.3). D. eleginoides were distributed down the shelf slope ... ) and not by geographical position. Pre-spawning animals appear to be distributed all around the South ... water, and are concentrated to the northeast of Shag Rocks. Few spent fish were found around South ... observers from the 1998 fishery around South Georgia and Shag Rocks (Subarea 48.3). D. eleginoides were ... distributed down the shelf slope with an approximately linear relationship existing between depth and fish ... distributed all around the South Georgia and Shag Rocks shelf slopes. Spent animals of both sexes appear to ... move up slope to shallower water, and are concentrated to the northeast of Shag Rocks. Few spent fish ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Автор(ы): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

5. Preliminary results of a bottom trawl survey around Elephant Island in October and December 1987

   Chaenocephalus aceratus, Notothenia gibberifrons and N. neglecta at least since February 1985. In N. rossii the ... proportion of larger (= older) fish in the catches increased. Composition of the catches of C. gunnari ... other shelf areas of the Peninsula region. File:  09-Kock.pdf ... and N. neg/ecta at least since February 1985. In N. rossii the proportion of larger (= older) fish in ... the catches increased. Composition of the catches of C. gunnari differed significantly from that in ... previous seasons which argues for an exchange with C. gunnari from other shelf areas of the Peninsula ... Peninsula. 1 . INTRODUCTION Since 1975/76 the Federal Republic of Germany has been carrying out a long ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 185-200 : Автор(ы): Kock, K.-H.

6. On assessment of Bertalanffy growth equation parameters and instantaneous natural mortality rate of South Georgia mackerel icefish

   icefish (Champsocephalus gunnari) for 1965 to 1987 is presented. The results enable the calculation of ... reliable weight-length equations for males and females by season and the verification of parameters for the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 29–36 : Автор(ы): Frolkina, Zh.A. and R.S. Dorovskikh

7. 1989/1990 stock status and TAC assessment for Patagonotothen brevicauda guntheri in South Georgia subarea (48.3)

   South Georgia subarea (48.3) Abstract / Description:  The 1989/90 stock status and TAC assessments for ... Patagonotothen brevicauda guntheri from the South Georgia subarea (48.3) have been made using biostatistical ... the regression equation between fishing mortality and standardized fishing effort for each age-class ... . Stock has been assessed at 123.1 thousand tonnes with a TAC of 28.3 thousand tonnes for the initial ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 101–110 : Автор(ы): Shlibanov, V.I.

8. Otolith and body size relationships in bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3

   holotrachys) caught as by-catch in the Patagonian toothfi sh (Dissostichus eleginoides) fishery in Subarea ... 48.3 was measured and weighed, and the usefulness of otoliths as predictors of fish size was determined ... size models should be derived for each fish population under investigation. The length of fish chosen ... in such studies should be representative of the size range consumed by predators. File:  09morley ... otoliths from bigeye grenadier (Macrourus holotrachys) caught as by-catch in the Patagonian toothfi sh ... (Dissostichus eleginoides) fi shery in Subarea 48.3 was measured and weighed, and the usefulness of otoliths as ... under investigation. The length of fi sh chosen in such studies should be representative of the size ... INTRODUCTION Fish of the family Macrouridae (rattails and grenadiers) are regularly taken as by-catch in the ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 133–143 : Автор(ы): Morley, S. and M. Belchier

9. Selectivity parameters for Notothenia gibberifrons Lönnberg, 1905 and Champsocephalus gunnari Lönnberg, 1905 obtained during “8611 ANTARCTICA [ANTARTIDA]” expedition

   / Description:  Mesh selectivity experiments for several finfish species were conducted during the Spanish ... Antarctic cruise “ANTARTIDA 8611” using the covered codend technique. This paper presents the results ... species were conducted during the Spanish antarctic cruise "ANTARTIDA 8611" using the covered codend ... technique. This paper presents the results obtained for Notothenia gibberifrons and Champsocephalus gunnari ... agriculture, V. 1. John Wiley & Sons. 223 pp. KOCK K.H., 1986. The state of exploited Antarctic fish stocks ... in the Scotia Arc Region during SIBEX (1983-1985). Arch. Fish Wiss. 37 (Beih 1): 129-186. POPE J.A ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 87-105 : Автор(ы): Balguerías, E.

10. Areas of seabed within selected depth ranges in CCAMLR Subarea 48.3, South Georgia

    and deeper than 500 m have been estimated from nautical charts. The results are presented by CCAMLR ... estimated from nautical charts. The results are presented by CCAMLR fine-scale reporting areas. Resume ... . INTRODUCTION During the 1989 Meeting of the Working Group on Fish Stock Assessment in Hobart, it was agreed ... . This paper contains such data for the South Georgia area, CCAMLR Subarea 48.3 and supersedes that ... Survey, Madingley Road, Cambridge CB3 OET, United Kingdom 459 2. DATA SOURCES The main sources ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 459–466 : Автор(ы): Everson, I. and S. Campbell

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