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1. Reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season

   between the fish released with tag and that of overall catch was considerably high (θ=95 %). Author(s ... significantly lower than that (168.7 ± 22.2 kg / 1,000 hooks) in the same SSRU in the 2009/10 survey, although ... the CPUE in terms of number was same level between the years. This may be due to the catch of small ... fish in the shallow area < 500 m in the 2010/11. The smaller size of fish tended to be caught in the ...

   Meeting Document : WG-SAM-11/06 : Autor(es): K.Taki, T. Iwami and M. Kiyota (Japan)

2. The use of electronic monitoring camera system for the toothfish fishery in CCAMLR Subarea 48.3: a study case to help CCAMLR

   requires considerable effort and cost with mixed results.  For example it is not always possible to achieve ... coverage of all setting and hauling activities on this vessel. It proved to be reliable, easy to set up by ... divided in settings and hauling operations where at-sea observations were matched with video footage ... by a scientific observer was compared with recorded video footage recorded by 3 different video ...

   Meeting Document : WG-FSA-14/27 : Autor(es): R.A. Benedet (United Kingdom)

3. Estimating confidence intervals for fish stock abundance estimates from trawl surveys

   . Simulation tests of the method show that unbiassed estimates of the density and biomass can be obtained and ... using the swept area method, using likelihood ratios from Aitchison&#039;s delta distribution ... that the estimated confidence intervals have close to the nominal coverage probability. Performance ... confidence bound appears to be more reliable than the upper. Author(s):  W.K. de la Mare (Australia) Title ...

   Meeting Document : WG-FSA-93/20 : Autor(es): W.K. de la Mare (Australia)

4. Development of the Southern Ocean Continuous Plankton Recorder survey

   as early as July (midwinter). The large areal and temporal scale means that it is difficult to ... icebreaker Shirase in collaboration with the Japanese Antarctic programme. Shirase has a fixed route and time ... of records. The most successful seasons to date have been the 1997/1998, 1999/2000 and 2000/2001 ... austral summers with 20, 31 and 26 tows, respectively. The 1999/2000 season included a unique, nearly ...

   Meeting Document : WS-BSO-07/P4 : Autor(es): Hosie, G., M. Fukuchi and S. Kawaguchi

5. How much do icefish (Notothenioidei, Channichthyidae) eat in the southern Scotia Arc and the Antarctic Peninsula region?

   southern Scotia Arc in 1996, 1999, 2001, 2002, 2003, 2007 and 2009, and in 2006 off the north western part ... study range from 0.5 – 2.5% body per day. These values may be exceeded locally and temporarily in summer ... empty their stomachs completely before taking in new food. If we assume that digestion of krill takes ... line with those from previous more limited studies. Author(s):  K.-H. Kock (Germany), C.D. Jones (USA ...

   Meeting Document : WG-FSA-10/18 : Autor(es): K.-H. Kock (Germany), C.D. Jones (USA), J. Gröger and S. Schöling (Germany)

6. Catch removals due to killer and sperm whale interactions across sub-Antarctic fisheries

   . The results indicated that these removals were large, totalling more than 6,600 t of toothfish between ... 2009 and 2016 with an overall annual mean of 837 t [95% CI 480-1,195 t], comprised of 317 t [232-403t ... varied between areas, with the largest estimates found at Crozet Islands, where on average 279 t [179-379 ... Abstract:  Fisheries are human activities that alter resource availability for species in marine ...

   Meeting Document : WG-FSA-2019/33 : Autor(es): P. Tixier, P. Burch, F. Massiot-Granier, P. Ziegler, D. Welsford, M.-A. Lea, M.A. Hindell, C. Guinet, S. Wotherspoon, N. Gasco, C. Péron, G. Duhamel, R. Arangio, R. Tascheri, S. Somhlaba and J.P.Y. Arnould

7. Assessing the feasibility of regional surveys of land-based predator abundance in the Southern Ocean: a framework for decision making and planning

   abundance of land-based predators. At the 2001 meeting of WG-EMM it was proposed that a workshop be held in ... that it be applied at the workshop to a selected region as a means of both assessing and/or developing ... that new technologies and methodologies need to be considered for use wherever possible. Author(s):  C ... the framework and undertaking preliminary plans for the region. The framework is designed to be ...

   Meeting Document : WG-EMM-02/45 : Autor(es): C. Southwell (Australia)

8. UPDATE OF THE INTEGRATED STOCK ASSESSMENT FOR THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) FOR THE HEARD AND MCDONALD ISLANDS (DIVISION 58.5.2)

   ) analysis of the age-length frequency data suggested that ALKs could be pooled across sub-fisheries without ... significant loss of information. Pooling the ALKs in this way meant that all commercial catch data could be ... commercial catches with catch-at-age proportions by applying age length keys (ALKs) to gear- type/ground (i.e ... random ageing error. CASAL allows a single ageing error matrix to be defined and applies this matrix to ...

   Meeting Document : WG-FSA-09/20 : Autor(es): S.G. Candy and D.C. Welsford (Australia)

9. Revised reports on abundance and biological information on toothfish in Division 58.4.4 a and b by Shinsei Maru No. 3 in 2010/11 season

   between the fish released with tag and that of overall catch was considerably high (θ=95 %). There was a ... significantly lower than that (93.7 kg / km (CV = 61.7%)) in the same SSRU in the 2009/10 survey, although the ... CPUE in terms of number was same level between the years.  This may be due to the catch of small fish ... in the shallow area < 500 m in the 2010/11. A total of 189 individuals of toothfish with good ...

   Meeting Document : WG-FSA-11/14 : Autor(es): K. Taki, T. Iwami and M. Kiyota (Japan)

10. A methodology for estimating total finfish by-catch of the Area 48 krill fishery

    Abstract:  The report presents a methodology that can be used to estimate the total finfish ... that is currently available, applied to data collected by Scientific Observers on the FV Saga Sea ... species level for C. gunnari and N. rossii. This methodology takes account of explanatory variables that ... are significantly associated with presence/absence of finfish bycatch in estimates of finfish bycatch ...

    Meeting Document : WG-EMM-12/29 : Autor(es): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)

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