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1. Research plan for toothfish in Division 58.4.4a & b by Shinsei Maru No. 3 in 2013/14

   Abstract:  We made stock status assessments of Dissostichus eleginoides in SSRUs C and D in ... stating that the sensitivity run of the CASAL model should be made by using levels of IUU ranging from ... CASAL_base model includes estimated variability of YCS for the period from 1989 to 2005, and assumed that a ... quarter of observed IUU fishing in the division had occurred in SSRU C. High estimated stock levels were ...

   Meeting Document : WG-SAM-13/21 : Автор(ы): Delegation of Japan

2. Revised assessment models for Patagonian toothfish in research block 58.4.4b_1 (SSRU 58.4.4bC) for the years 1990–2014

   Abstract:  We presented five sensitive runs of single-sex age-structured CASAL models for stock ... status assessments of Dissostichus eleginoides in the research block 58.4.4b_1 in the last WG-SAM meeting ... included all observations. The Working Group, however, requested the further examination of the sensitivity ... consequences of different harvest levels for the time to recovery to the target level. We revised to retain tag ...

   Meeting Document : WG-FSA-15/23 : Автор(ы): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)

3. Habituation to an acoustic harassment device (AHD) by killer whales depredating demersal longlines

   return of initial depredation behaviour strongly suggests that AHDs are ineffective at deterring ... fisheries that suffer significant losses caused by odontocete depredation. However, the efficacy of AHDs to ... deter odontocetes from fishing gear remains poorly investigated. To determine the effectiveness of AHDs ... distances of 29 killer whales from the vessel (n = 1,812 records) were collected during 45 phases of AHD ...

   Meeting Document : WG-FSA-14/P04 : Автор(ы): P. Tixier, N. Gasco, G. Duhamel and C. Guinet

4. Observer notes (Subarea 88.1)

   Abstract:  Results of biological data analysis of Antarctic fish species from catches of 117 ... Antarctic toothfish was found in long-line catches above seamounts of the Pacific-Antarctic Ridge to the ... North up to 56°S. Presence of Patagonian toothfish in spawning aggregations of Antarctic toothfish ... cannot lead to their intbreeding as its gonads were at the early development stages in that period ...

   Meeting Document : WG-FSA-04/89 : Автор(ы): V.G. Prutko (Ukraine)

5. ENCOUNTERS WITH VULNERABLE MARINE ECOSYSTEMS IN THE CONVENTION AREA

   58.4.1 or 58.4.2 at the time of writing this report. Author(s):  Secretariat Title:  ENCOUNTERS WITH ... of seven risk areas in Subareas 88.1 and 88.2, and one VME FS rectangle was identified in Subarea ... 88.2. In addition, the Secretariat has received 30 notifications of encounters with VMEs during the ... course of research surveys conducted by the U.S.A. in Subarea 48.1 (17 notifications, seafloor depth 92 ...

   Meeting Document : WG-EMM-09/08 : Автор(ы): Secretariat

6. Reports on abundance and biological information on toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2011/12 season

   . A total of 133 killer whales (Orcinus orca) were observed at the 30 hauls. All of whales observed ... during the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch (excluding tagged and released ... fish) of Dissostichus eleginoides was 28.3 tonnes in the survey area in 70 longline sets, contributing ... 91.3 % to the total fish catch (31 tonnes). Mean CPUEs of D. eleginoides was in the SSRUs were 6.7 ...

   Meeting Document : WG-SAM-12/16 : Автор(ы): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)

7. Monitoring Antarctic toothfish (D. mawsoni) recruitment in the southern Ross Sea

   annual surveys have been conducted at a similar time of the year. The surveys caught mainly 70–110 cm ... Abstract:  Knowledge of recruitment dynamics, and in particular trends in recruitment and ... recruitment variability, are key inputs for integrated assessments of fish stocks. A quantitative longline ... survey monitoring the recruitment of Antarctic toothfish (Dissotichus mawsoni) in the southern Ross Sea ...

   Meeting Document : WG-FSA-17/57 : Автор(ы): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp

8. Assessment models for Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–G for the years 2002–03 to 2010–11

   at 544 t, slightly lower than the combined current catch limits for the region of 575 t. We examined ... assessment model of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 covering SSRUs 88.2C, D, E, F ... , and G (SSRUs 88.2C–G). For modelling purpose, we split the region into two fisheries: south of 70.2° S ... where smaller fish are typically caught and effort has been light; and north of 70.2° S where larger ...

   Meeting Document : WG-FSA-11/43 : Автор(ы): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

9. The Patagonian toothfish: biology, ecology and fishery

   habitat at around 100 mm (1 yr old), and inhabit relatively shallow water (< 200m) until 6-7 years of ... and slopes of South America and around the sub-Antarctic islands of the Southern Ocean. Patagonian ... scavengers, there is no evidence of large-scale geographic migrations and studies using genetics ... , biochemistry, parasite fauna and tagging indicate a high degree of isolation between populations in the Indian ...

   Meeting Document : WG-FSA-10/P05 : Автор(ы): M.A. Collins, P. Brickle, J. Brown and M. Belchier

10. An integrated stock assessment for the Heard Island and the McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2

    eleginoides) fishery at the Heard Island and the McDonald Islands in CCAMLR Division 58.5.2 with data until ... end of July 2015. The updated assessment model is based on the best available estimates of model ... parameters, the use of abundance estimates from a random stratified trawl survey (RSTS), longline tag-release ... composition data to aid with the estimation of year class strength and selectivity functions of the trawl ...

    Meeting Document : WG-FSA-15/52 : Автор(ы): P. Ziegler and D. Welsford (Australia)

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