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  1. Preliminary assessment of the South Georgia toothfish stock, 2007

    with data from the 2007 fishing season. The predicted spawning stock biomass and the yield is slightly ... , in which smaller fish survive tagging better than large fish, and (b) by re-estimating from our tagging ... data that tag-induced growth retardation is also related to size, smaller fish suffering less growth ... retardation than larger fish, and that on average it is 1 year or more. 3. A new model is developed which uses ...

    Meeting Document : WG-FSA-07/29 : Author(s): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)

  2. An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07

    vessels and preliminary data for other vessels that fished in 2007. Release and recapture data ... of Antarctic toothfish were observed from fish tagged by fishing vessels. A total of four fish moved ... 88.1J. There was also some evidence that more fish are recaptured after a longer time at liberty ... and preliminary data for other vessels that fished in 2007. Release and recapture data that previously were ...

    Meeting Document : WG-SAM-07/5 : Author(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)

  3. Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2010–11

    toothfish per tonne of catch in the Ross Sea region. Tag recapture data showed that most fish are recorded ... been observed. Long distance movements to the north were recorded for six fish that moved from SSRU ... southwards movements were recorded for three fish that moved from SSRU 88.1B to SSRUs 88.1H; and one to SSRU ... 88.1I. In addition, several fish moved long distances on the slope and the shelf, with movements between ...

    Meeting Document : WG-FSA-11/46 : Author(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

  4. Analysis of seamount-specific catch and tagging data in the Amundsen Sea, SSRU 88.2H

    areas. These metrics were also calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish ... 1-2 years before fish depart from these seamounts, presumably back to the slope SSRUs. Therefore ... , it is recommended that the stock assessment include only recaptures of tagged fish that have been at liberty ... assessment along with 88.2H. Fishing has occurred on almost every seamount in every year, and no evidence ...

    Meeting Document : WG-SAM-14/27 : Author(s): S.J. Parker (New Zealand)

  5. A meta-analysis of by-catch in the Ross Sea toothfish fishery

    fish as a proportion of the total number of fish caught), using haul by haul data from the Ross Sea ... and location of fishing. However, there was also evidence of distinct differences in the mean (and distribution ... of bycatch in CCAMLR longline fisheries. The numerical target catch ratio (the number of target fish ... as a proportion of the total number of fish caught), using haul by haul data from the Ross Sea toothfish fishery ...

    Meeting Document : WG-FSA-15/04 Rev. 1 : Author(s): CCAMLR Secretariat

  6. REPORT ON A LONGLINE SURVEY CONDUCTED BY THE FV JANAS IN MAY 2008 ON BANZARE BANK, AND AN ASSESSMENT OF THE STATUS OF DISSOSTICHUS SPP. IN DIVISION 58.4.3B

    2 strata covering areas of commercial fishing activity was conducted from aboard the Australian flagged ... population is almost entirely large mature fish with a bias towards males, which are shown to mature ... that the fish encountered originate from nearby populations in east Antarctica where juveniles of both sexes ... covering areas of commercial fishing activity was conducted from aboard the Australian flagged longliner FV ...

    Meeting Document : WG-FSA-08/57 : Author(s): D. Welsford, T. Robertson and G. Nowara (Australia)

  7. Preliminary assessment of mackerel icefish, Champsocephalus gunnari, on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003

    1997 cohort through the population and relatively weak recruitment in 1999 and 2000. The 1+ fish ... of un-assessed cohorts and provide for more stable catches between fishing years, while meeting ... in recruitment, natural mortality and growth of these fish, combined with the need to maintain a steady yield ... 1997 cohort through the population and relatively weak recruitment in 1999 and 2000. The 1+ fish ...

    Meeting Document : WG-FSA-03/32 : Author(s): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)

  8. RESEARCH PLAN FOR TOOTHFISH IN DIVISION 58.4.4a & b BY SHINSEI MARU NO. 3 IN 2009/10

    at shallow points of < 500 m in SSRU A in order to avoid catching small fishes. A Trot line system ... one fishing line, will be used in order to standardize the CPUE of Trot line more accurately ... tagging, 3 fish/ton, will be made to apply the mark-and-recapture studies. Author(s):  Delegation of Japan ... at shallow points of < 500 m in SSRU A in order to avoid catching small fishes. A Trot line system ...

    Meeting Document : WG-SAM-09/11 : Author(s): Delegation of Japan

  9. Summary of holdings of Patagonian toothfish (Dissostichus eleginoides) otoliths and size-at-age estimates from Heard and McDonald Islands (Division 58.5.2)

    , including individuals collected during research and commercial fishing, tag recaptures, and those ... collected from recaptured tagged fish. More than 3200 otoliths have been processed to provide size-at-age ... estimates from fish captured between 1997 and 2003. A growth model based on these size-at age data ... individuals collected during research and commercial fishing, tag recaptures, and those individuals which have ...

    Meeting Document : WG-FSA-07/45 : Author(s): D.C. Welsford and G.B. Nowara (Australia)

  10. Report of the WG-FSA Intersessional Subgroup on Sampling Catches from Longlines

    use the hauling completed within a day as a frame, and theoretically cover all fishing activity ... could be implemented more rigorously if the CCAMLR objective was changed from sampling 60 fish/day ... of fish sampled for length would not substantially increase the precision of the estimates for mean length ... use the hauling completed within a day as a frame, and theoretically cover all fishing activity ...

    Meeting Document : WG-FSA-02/52

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