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1. Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari

   RPYCOB C ~ P O C O M OTXOflOB nepepa60T~R C 6op~a , IIpOTMBO~OnOXHO~O TOMY, C KOTOpOrO YCTaHaBnMBaeTCR ... both within a n d outside the CCAMLR area, and in recent years the D. eleginoides fishery ... for D. eleginoides in the vicinity of the 1994/95 season with two principal species South Georgia (Subarea 48.3 ... and Longliners 0 two French trawlers (78 m and 87 m in length) fishing for D. eleginoides. During longline ... Paper Title:  Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides ... incidental mortality were observed during commercial trawling operations for Patagonian toothfish ... (Dissostichus eleginoides) in the 1994/95 season near Macquarie Island and Kerguelen Island. Longlining for D ... . eleginoides and trawling for mackerel icefish (Champsocephalus gunnari) were also observed at Kerguelen. Many ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 93–99 : Author(s): Williams, R. and D. Capdeville

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

   was estimated to be –0.6 years and residual variance 2.9. Age distributions of toothfish caught by two vessels ... by trawlers and longliners at Kerguelen, and longevity was estimated to be 36 years. Total instantaneous ... to measure precision; relative bias for the age data was estimated to be –0.6 years and residual ... variance 2.9. Age distributions of toothfish caught by two vessels showed discrepancies due to gear ... a ge ( ye ar s) 0 10 20 30 40 50 Reference age (years) 0 10 20 30 40 50 E st im at ed ... Estimated age (years) 0 10 20 30 40 50 T ot al le ng th ( cm ) 0 20 40 60 80 100 120 140 ... 1 1 1 1 130 1 Total 1 10 20 39 39 21 30 27 23 19 23 14 22 21 21 20 6 16 Prop. 0.00 ... a South Georgia reference collection, compared to reference ages. 0 10 20 30 40 50 E st im at ed ...

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

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

   C O ~ J ~ ~ H ~ H H ~ I M OpOneBCTBOM B 1993194 r. npeAJIo~eHb1 YpaBHeHHX PerpeCCllll An% OQeHKll rOpll30HTaJIbHOAO PaCKPbITRSI ... trawls have been used for over 20 years to make fishery-independent estimates of the stock sizes ... the first three stations (17, 20 and 21) were logged every 30 seconds and the fourth (22) every 20 seconds ... , that times on the bridge were only recorded to the nearest minute. 20 25 30 35 40 45 50 Station Figure ... surveys around South Georgia, Subarea 48.3 Abstract / Description:  Methods for calculating the horizontal ... used during the 1993/94 UK fish stock assessment survey around South Georgia on the MV Cordella are ... presented. Regression equations for the estimation of horizontal opening from other, more easily measured ... variables, such as tow speed and trawl depth, are proposed. Biomass estimates for the major fish species ...

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

4. A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   December to May for all years and all vessels. Month G S I ( % ) 0 5 10 15 20 25 Dec Jan Feb ... of floats in each of 19 sub-regions at the end of the two-year simulation period for floats released ... depth of 146 m, these red floats take about two years to reach the continental shelf at the eastern ... in the water column. After two years the majority of floats released at 25 m had left the area from where ... Paper Title:  A hypothetical life cycle for Antarctic toothfish (Dissostichus mawsoni) in the Ross ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region are reviewed. Based on the presumed ... of eggs and larvae over a 6–24 month period were investigated using an oceanic circulation model ... locations of toothfish larvae after an 18–24 month period were moderately consistent with the distribution ...

   Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 35–53 : Author(s): Hanchet, S.M., G.J. Rickard, J.M. Fenaughty, A. Dunn and M.J. Williams

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

   ;March 2002 on the South Georgia shelf. Juvenile fish comprised two year classes arising from spawning ... a trawl survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fish comprised two ... year classes arising from spawning in the 1999/2000 and 2000/01 split-years. The mean width of daily ... year class lasted four months. This was estimated based on a retrospective count of daily increments ... survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fi sh comprised two year ... the year is de- fi ned as the period from 1 July to 30 June of the next year (Shcherbich, 1975). From ... represented a mixture of two year classes which correspond to spawnings in the 1999/2000 (5 speci- mens ... ) and 2000/01 (20 specimens) split-years. The 1999/2000 year class included 1-year-old fi sh (1+), which ...

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

6. Biomass, abundance and distribution of fish in the Kerguelen Islands EEZ (CCAMLR Statistical Division 58.5.1)

   the period between the two surveys. In addition to the commercial species, Zanclorhynchus spinifer ... , their biomass during the period between the two surveys. In addition to the commercial species, Zanclorhynchus ... 20 years after the beginning of fish- ery. The first biomass estimates were produced from ... density and abundance estimations. In strata where other species occur in one or two stations only ... ns ns ns Channichthys rhinoceratus 2.62 1.13 1.19 10.21 0 10 000 20 000 30 000 40 000 50 000 ... area is known. The geographic and bathymetric fish distribu- tions over a 20-year interval ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 1–32 : Author(s): Duhamel, G. and M. Hautecoeur

7. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   in years of poor krill availability. Thus natural  ortality of C. gunnari may, in some years, increase ... with increased consumption of C. gunnari by Antarctic fur seals in years of poor krill availability. Thus natural ...   ortality of C. gunnari may, in some years, increase by a large factor (assumed here ... depleted for one or two years. This behaviour is a direct result of the high levels of variability ... , to 4 million animals. Fur seal consumption of C. gunnari in both good and poor krill years is well documented ... for C. gunnari in Subarea 48.3 C . gunnari may therefore encounter two problems in years of low krill ... in years of high fur seal predation, depending on the size of animals in the fur seal and C. gtinnari ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Author(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

8. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   of the biomass estimate which is set as the catch for a 20-year period. Three possible fishing seasons ... for a 20-year period. Three possible fishing seasons are considered. The model extensions requested ... is set as the catch for a 20-year period. Three possible fishing seasons are considered. The model ... de la biomasse estimee sur laquelle est fixbe la capture pour une periode de 20 ans. Trois saisons ... D,,,, = 0.2 of its median pre-exploitation level ( P ) 1992). over a 20-year harvesting period. The resul ... at random from pre-specified distributions for each simulation of a 20-year period of harvesting ...

   Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Author(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

9. Using ecosystem monitoring data to detect impacts

   years of its onset, but a fixed reference point method could have provided this sustained indication ... the early 1990s within a few years of its onset, but a fixed reference point method could have provided ... at will have one of two possible states relative to acrit. These states are α1 (at ≤ acrit) and α2 (at > acrit ... if at ≤ acrit in two or more years of a four-year refer- ence period. Summary of methods: anomalies versus ... specified in the subheading, or a ‘trend’, a linear change to these parameters over the 20-year simulation ... simulation de 20 ans. Liste des figures Figure 1: (a) Production annuelle de jeunes chez les otaries ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Author(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda

10. Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region

    , including two indicator-only taxa. File:  05parker-bowden.pdf ... as vulnerable to bottom longline fishing activities in the Ross Sea region, including two indicator-only taxa. ... ; M = 10–30 years; H = >30 years) Growth rate: (L = mature <10 years; M = mature 10–20 years; H = mature ... are assigned a longev- ity class of Low, 10–30 years as Medium, and more than 30 years as High. 111 ... >30 years or evidence for sporadic recruitment events) Fragility: (L = Flexible, strong; M = somewhat ... species grow slowly and live longer than the 30 years estimated for more shal- low species (McFadden ...

    Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Author(s): Parker, S.J. and D.A. Bowden

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