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1. Estimates of fish stock biomass around South Georgia in January/February 1985

   N. guntheri and D. eleginoides stocks is difficult to assess. The by-catch species N. gibberifrons ... , Ch. aceratus and Ps. georgianus have been considerably affected by the fishery. Stock sizes of N ... most greatly affected by fishing are still N. rossii and C. gunnari. Biomass estimates indicate a ... fishery is dependant on the abundance of the recruiting year class. Conservation measures adopted by ... and D. eleginoides stocks is difficult to assess. The by-catch species N. gibberifrons, Ch. aceratus ... and Ps. georgianus have been considerably affected by the fishery. Stock sizes of N. gibberifrons ... greatly affected by fishing are still N. rossii and C. gunnari. Biomass estimates indicate a reduction ... fishery is dependant on the abundance of the recruiting year class. Conservation measures adopted by ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 1-32 : Auteur(s): Kock, K.-H.

2. Scientific observations in CCAMLR fisheries – past, present and future

   standard catch and effort data supplied by vessels, the collection of data by scientifically qualified ... management purposes. The Scheme of International Scientific Observation, adopted by CCAMLR in 1992, is ... which are covered by the CCAMLR System of Inspection. Under the scheme, observers are deployed under ... complicate matters. Therefore, in addition to the standard catch and effort data supplied by vessels, the ... collection of data by scientifi cally qualifi ed observers on board fi shing vessels has assumed prominence ... Scientifi c Observation, adopted by CCAMLR in 1992, is designed to gather and validate fi shery- related ... observation only and is separate from enforcement issues which are covered by the CCAMLR System of Inspection ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 81–98 : Auteur(s): Sabourenkov, E.N. and E. Appleyard

3. Some comments on the procedure for testing estimators of krill abundance which utilise survey data

   spatial correlation by placing krill swarms at random within larger aggregation features termed ... 1981 FIBEX survey by MV SA Agulhas. However, evidence of model misspecification remains. Further work ... spatial correlation by placing krill swarms at random within larger aggregation features termed ... 1981 FIBEX survey by MV SA Agulhas. However, evidence of model misspecification remains. Further work ... density trend. Substitution of a fully random survey design by a systematic one would be a satisfactory ... estimates of abundance and its variance by making use of these within-transect data. Incorporating spatial ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Auteur(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller

4. Age determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula subarea (Subarea 48.1)

   between false and annual checks in scales. Age determination by otolith cross sections proved to be the ... discussed. It is expected that the Otoliths/Scales/Bones Exchange System established by CCAMLR will help to ... determination by otolith cross sections proved to be the most reliable method. Mean length data at age ... Otoliths/Scales/Bones Exchange System established by CCAMLR will help to eliminate discrepancies in age ... CCAMLR. Since 1986 it has been discussed by the Fish Stock Assessment Working Group at the follow-up ... Islands by means of otolith analysis and emphasize the importance of the exchange system established by ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 143-160 : Auteur(s): Barrera-Oro, E.

5. Vertical migrations of mackerel icefish (Champsocephalus gunnari) on the South Georgia shelf

   /87). Catch-per-hour of fishing was analysed by the time of day. Catches made by both bottom trawls ... analysed by the time of day. Catches made by both bottom trawls and midwater trawls were taken into ... and nototheniids in shelf waters of the South Georgia by means of trawl surveys. The assessment ... methodology suggested by Saville (1977) and widely used by Polish, Spanish, British and American scientists ... in years of high abundance (1982/83, 1983/84 and 1986/87). Catch-per-hour of fishing was analysed by ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 3–14 : Auteur(s): Frolkina, J.A. and V.I. Shlibanov

6. Krill population biology during the 1991 Chilean Antarctic krill fishery

   , north of Elephant Island. The samples were grouped by time of capture: daytime, twilight and night-time ... were also made at consistently greater depths. Research was financed by INACH (Chilean Antarctic ... of Elephant Island. The samples were grouped by time of capture: daytime, twilight and night-time ... by INACH (Chilean Antarctic Institute). Resume Etude de la biologie des populations du krill ... (abertura de unos 40 x 40 my luz de malla de 1.5 a 3 cm). De un total de 50 muestras, se separaron 2 ... determined that since krill, (Euphausia superba), is by far the most abundant marine living resource in ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Auteur(s): Mujica R., A., E. Acuña S. and A. Rivera O.

7. Use of indices of predator status and performance in CCAMLR fishery management

   used in the management, by CCAMLR, of commercial fisheries. It reviews reasons why it is important for ... Ecosystem Monitoring Program (CEMP) could be used in the management, by CCAMLR, of commercial fisheries. lt ... . 172; SC-CAMLR-V, p. 149) and were most recently summarized by Croxall et al. (1988) as: " ( a ... used by CCAMLR in its management of the commercially exploited resources. This paper reviews why we ... despite the existence of appropriate scientific data and/or advice. By the time such over-exploitation ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 353–365 : Auteur(s): Croxall, J.P.

8. Performance and geometry of the FP-120 trawl used during UK fish stock assessment surveys around South Georgia, Subarea 48.3

   . Relative biomass has been estimated using the 'swept-area method" described by Saville (1977). The swept ... -area method requires a knowledge of the area of seabed covered by the net during each tow. This is ... normally assumed to be the horizontal distance between the wings multiplied by the distance travelled by ... ), and sea trials carried out by the Sea Fish, Industry Authority, SFIA (1985). Moderhak and ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 51–69 : Auteur(s): Pilling, G. and G. Parkes

9. 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 ... 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 ... range consumed by predators. Résumé Un échantillon important d’otolithes de grenadiers gros-yeux ... INTRODUCTION Fish of the family Macrouridae (rattails and grenadiers) are regularly taken as by-catch in the ... total catch by weight in these fi sheries (van Wijk et al., 2000). In other fi sheries, such as the ...

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

10. Estimation of effective sample size for catch-at-age and catch-at-length data using simulated data from the Dirichlet-multinomial distribution

    model in predicting class/bin by year frequencies is used to obtain a single, across-years, over ... -dispersion parameter. The ESS is then rescaled by dividing by the over-dispersion parameter, and the model ... rectified by changing the underlying age-structured assessment model. File:  07candy.pdf ... of fit of the age- structured model in predicting class/bin by year frequencies is used to obtain a ... single, across-years, over-dispersion parameter. The ESS is then rescaled by dividing by the over ... present and is useful when its source is not clear or cannot be rectified by changing the underlying age ... assessment software (Bull et al., 2005) currently used by CCAMLR allows a multinomial likelihood to be used ...

    Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 115–138 : Auteur(s): Candy, S.G

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