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1. Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey

   between the acoustic scattering coefficient of krill swarms and catch, catch per unit effort (CPUE), catch ... abundance based on fishery data. The results showed that average catch of daytime trawls was significantly ... higher than average catch of night trawls. The average thickness of krill swarm in the daytime ... +5.8976 (R 2 =0.5818). NASC and catch also had a significant correlation, the equation is y=2.0324x+6.3795 ...

   Meeting Document : WG-EMM-17/44 : Author(s): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu

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

   , for the Heard and McDonald Islands (Division 58.5.2) was updated by replacing catch-at-length proportions from ... commercial catches with catch-at-age proportions by applying age length keys (ALKs) to gear- type/ground (i.e ... significant loss of information. Pooling the ALKs in this way meant that all commercial catch data could ... be input to CASAL as catch-at-age proportions except for the 2009 catches. For 2006 and 2007 random ...

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

3. Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob and Lena Banks

   during the latest WG-SAM meeting. The six models with three kinds of assumptions on IUU catch were ... arranged referring to WG-SAM-14/18 as follows: 1) catch at length/age models on the assumption of no IUU ... fishing occurrence (Len_1/AgeSing_1 models), 2) catch at length/age models with estimation of IUU catch ... within the model using disease mortality functionality (Len_2/AgeSing_2 models), 3) catch at length/age ...

   Meeting Document : WG-FSA-14/23 : Author(s): K. Taki (Japan)

4. The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery

   . Catch items identified by EM represented over 60 fish, invertebrate or seabird species or species ... groupings, and the 15 fish most abundant species accounted for 98% of the catch. Data from fishing trips ... where EM and observers were deployed (about 55% of trips) were compared by total overall catch, total ... catch by set, and catch by individual hook. Overall EM and observer catch estimates agreed within ...

   Meeting Document : WG-FSA-03/100

5. Krill fishery report: 2010 update

   (China, Japan, Korea, Norway, Poland, Russia) have fished in Area 48. The total catch reported to May ... . Approximately 40% of the catch has been taken by two vessels using the continuous fishing system. The forecast ... total catch of krill for the season is 150000-180000 t. In 2008/09, five Members fished for krill ... in Area 48 and reported a total catch of 125826 t; two vessels used the continuous fishing system ...

   Meeting Document : WG-EMM-10/05 : Author(s): Secretariat

6. Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)

   for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016/17 ... ). Catch data show that most of the skate catch consists of Amblyraja georgiana and that this species ... of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to fishing with respect ... (excluding 2012). We estimated that the exploitation rate of the current catch of skates (the sum ...

   Meeting Document : WG-FSA-18/38 Rev. 1 : Author(s): S. Parker and M. Francis

7. Krill fishery report: 2012 update

   have fished for krill in Area 48; one vessel is using the continuous fishing system. The total catch ... for June. The forecast total catch of krill for this season ranges approximately from 108000 to 151000 ... t. In 2010/11, 13 vessels fished for krill in Area 48 and the total catch of krill was 180986 t; two vessels ... used the continuous fishing system. The largest catch of krill was taken off the South Orkney Islands ...

   Meeting Document : WG-EMM-12/05 : Author(s): Secretariat

8. Report on scientific observations onboard the Chilean longliner, ‘Puerto Ballena’, in Statistical Subarea 48.3 from March to May 1996

   of D. eleginoides, the estimation of the finfish by-catch, the estimation of a conversion factor of product to fresh ... with the longline operations. The catch of D. eleginoides was mainly comprised of specimens of 70-130 cm whith ... the proportion of females in the catch exceeding those of males in fish larger than 1 10 cm. Length at sexual ... of the seabird by-catch. A by-catch of 159 dead seabirds was reported by the scientific observer and the crew ...

   Meeting Document : WG-FSA-96/22 : Author(s): Selling, J., Kock, K.-H.

9. Comparison of catches for toothfish in 58.4.1, 58.4.2, and 48.6 from vessels with anomalous CPUE

   Abstract:  An accurate history of catch is an important input into the assessment of toothfish ... stocks, and uncertainty or bias in the amount of catch from an area must be taken into account ... plausible hypothesis is that the catches were not reported proportionally from the areas where they were ... taken. For the purposes of developing an alternative catch history for these SSRUs, we use these data ...

   Meeting Document : WG-FSA-13/57 Rev. 1 : Author(s): A. Dunn, B.R. Sharp (New Zealand), C. Darby (United Kingdom) and O.R. Godø (Norway)

10. Results from the random stratified trawl surveys to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2010 and 2011

    on abundance. Catches of D. eleginoides were at half or lower than in surveys from both years than the average ... catch for the previous four years (2006-2009).  Catches of C. gunnari were very low, with the 2011 catch ... , at less than 0.5 t, 15% of the earlier four year average, and the 2010 catch being 60% of the 2011 catch ... catches have been stable over recent years, with a fall in 2011. Skate catches were just below and just ...

    Meeting Document : WG-FSA-11/23 : Author(s): G.B. Nowara, S.G. Candy and T. Lamb (Australia)

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