Résultats de la recherche

1. 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 : Auteur(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)

2. 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 : Auteur(s): S.M. Hanchet, S. Mormede, S. Parker, K. Large, A. Dunn and B. Sharp

3. 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 : Auteur(s): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

4. 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 : Auteur(s): M.A. Collins, P. Brickle, J. Brown and M. Belchier

5. 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 : Auteur(s): P. Ziegler and D. Welsford (Australia)

6. Updating the Antarctic krill biomass estimates for CCAMLR Subareas 48.1 to 48.4 using available data

   assessment of the krill stock, at scales relevant to the Commission’s conservation objectives, is a ... Abstract:  We present a novel index of Antarctic krill biomass in CCAMLR subareas 48.1 to 48.4 ... . The index also suggests that realised exploitation rates were below 0.5% (i.e. catch was <0.5% of ... also suggest that exploitation rates are low and that there is no evidence of a systematic change in ...

   Meeting Document : WG-EMM-15/28 : Auteur(s): S. Hill, A. Atkinson, C. Darby, S. Fielding (United Kingsom), B. Krafft, O.R. Godø, G. Skaret (Norway), P. Trathan, J. Watkins (United Kingdom)

7. BIOLOGICAL PROSPECTING IN THE SOUTHERN OCEAN, A ROLE FOR CCAMLR

   fish and other vertebrates come in second at 10%. Of those records, the majority relate to fish, with ... Abstract:  The issue of bioprospecting has been a constant item on the agenda of ATCM since 2003 ... established to examine the issue of Biological Prospecting in the Antarctic Treaty Area. Although increasingly ... is not defined in any international convention or agreement. Indeed, there remains a range of views ...

   Meeting Document : CCAMLR-XXVII/BG/36 : Auteur(s): Submitted by IUCN

8. 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

   ）were observed at the 35 hauls. Most of whales observed and the predatory damaged toothfish occurred in ... the survey in two SSRUs (B & C) of Ob Lena Bank. Total catch (excluding fish released alive) of ... . eleginoides showed the highest catch of 35.4 tonnes, contributing 93.6 % to the total catch. Mean CPUEs of D ... %; 15.3 indiv. / 1,000 hooks) in terms of number and 62.3 kg / km (CV = 76.0%; 111.2 kg / 1,000 hooks) in ...

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

9. Estimating fishing gear selectivity for Patagonian toothfish (Dissostichus eleginoides) caught by trawlers on the Heard Island plateau region (Division 58.5.2) using trawl and longline length frequency data and forward-calculated continuation ratios

   selectivity begins from near 800 mm and declines from a selectivity of 1 to 0 at 1731 mm length. Adjusting for ... random length frequency (LF) data collected from each of trawlers and longliners for fishing seasons 2003 ... -2005 the upper arm of the gear selectivity function for trawlers is estimated using a two-stage process ... . In the first stage I estimate a parameter for each 40 mm wide length bin from the fit of a binomial ...

   Meeting Document : WG-FSA-05/65 : Auteur(s): S.G. Candy (Australia)

10. Development in maturity stage composition and vertical distribution in an Antarctic krill (Euphausia superba) hotspot

    of both male adult stages (MIIIA and MIIIB) increased, but at a lower rate. Overall, there was also a ... Abstract:  Antarctic krill (Euphausia superba) aggregate in various ways depending on a range of ... such as shelf edges and canyons, are considered as hotspots of high importance for regional pelagic ... ecosystems and also for the krill fishing industry. Despite the importance of such krill hotspots, their ...

    Meeting Document : WG-EMM-14/15 : Auteur(s): B.A. Krafft, G. Skaret and T. Knutsen (Norway)

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