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1. Revised input parameters and implications for the Antarctic toothfish (Dissostichus mawsoni) stock assessment in Subareas 88.1 and 88.2

   Abstract:  In this paper, we address a number of aspects of the model inputs and parameters of the ... runs that investigate the sensitivity of the 2006 stock assessment to changes in these model inputs and ... consistent patterns in length frequencies over the duration of the fishery. Including terms for nation ... recaptured. Inclusion of observations of the 2006 fish recaptured in 2007 had the greatest impact on the ...

   Meeting Document : WG-SAM-07/6 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)

2. CALIBRATION ERROR IN THE AMLR PLANKTON TIME SERIES

   Isaac-Kidd Midwater Trawl (IKMT) from 1992 to 2007 showed a marked decline (~35%) in the volume of water ... of rotor counts from the flow meters showed no significant trends. The discrepancy in volume is ... traced to a simple arithmetic error in the calculation of the mouth area of the net. Since 2000, the net ... area was not calculated and instead only the length of the net was used in the determination of the ...

   Meeting Document : WG-EMM-08/19 : Autor(es): C. Reiss (USA)

3. Preliminary investigations into a two-area stock assessment model for Antarctic toothfish (Dissostichus mawsoni) in the Amundsen Sea Region

   Abstract:  In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... noted that the assessments were unable to fit the patterns in the recaptures of tagged fish seen in SSRU ... modelling of the populations in the southern ASR (88.2C-G) and the northern ASR (88.2H), as well as ... enabling a better account of the observed patterns in the tag recapture data. However, in this preliminary ...

   Meeting Document : WG-FSA-14/57 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)

4. Squalus acanthias – a new species in the Antarctic ichthyofauna (Division 58.5.1)

   Abstract:  Four species of shark have been known to date to occur in the sub-Antarctic waters ... was captured in February 1995 on the shelf of the Kerguelen Islands from the depth of about 195 m and ... duly described. Squalus acanthias is believed to be one of the most widespread shark species in the ... World Ocean. The fact of capturing this species in the Kerguelen waters enlarges by far its range and ...

   Meeting Document : WG-FSA-96/14 : Autor(es): Pshenichnov, L.K.

5. Target strength studies on Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   -larvae of P. antarcticum with a total length from 13 to 70 mm, were conducted in the southeast of the ... relationships. In the authors’ opinion the model could be used to give a first indication of the absolute ... abundance of P. antarcticum in the Ross Sea. A critical point is the decision rule to be used to ... of the Ross Sea. Following the three-frequency decision criterion described in Azzali et al. (2004 ... of the catch accounts for the largest proportion of variation in mean in situ TS estimation. Other ... difference in sound speed should not affect the measurements of the mean volume backscattering coefficient ... 1.7% (spheroid) to 2.6% (ellipsoid) (in good agreement with the mean characteristics of fish soft ... were used, giving |Rv| = 0.22, which is in reasonable agreement with the mean characteris- tics of ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 75–104 : Autor(es): Azzali, M., I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi

6. Preliminary proposal for designation an Antarctic Specially Protected Area in the Argentine Islands Archipelago and nearby Graham Coast Antarctic Peninsula region

   vegetation, and populations of very rare in the region Colobanthus quitensis (Caryophyllaceae), and more ... component could serve as one of the scientific reference areas of the broad-scale MPA in Domain 1 (Antarctic ... distribution (in accordance with the point 2 (iii) of the CM 91-04). Author(s):  Delegation of Ukraine Title ... region of Argentine Islands Archipelago, adjacent islands of the Wilhelm Archipelago and costal oases of ...

   Meeting Document : SC-CAMLR-38/BG/21 Rev. 1 : Autor(es): Delegation of Ukraine

7. TARGET STRENGTH STUDIES ON ANTARCTIC SILVERFISH (PLEURAGRAMMA ANTARCTICUM) IN THE ROSS SEA

   free swimming fish in their natural habitat. A canvassing of the literature suggested that the type of ... and abundance in the Ross Sea. In this paper we present results of three different studies on ... Antarctic Silverfish TS. In situ experiments were conducted on juveniles (length<90mm) on the SE of the ... determined by the catch in number of fish. The catch was constituted of P. antarcticum for more than 95% in ...

   Meeting Document : SG-ASAM-09/10 : Autor(es): M. Azzali, I. Leonori, I. Biagiotti, A. De Felice, M. Angiolillo, M. Bottaro and M. Vacchi (Italy)

8. What do we know about fish stocks in the Southern Scotia region? A review and prospects for future research

   Abstract:  Work on finfish in the southern Scotia Arc was restricted to taxonomy until the end of ... 1978/79. The fishery was lucrative for a few seasons only, and was closed in 1989/90. Stocks of finfish ... /beginning of the 1990’s. Since the early 1990’s, most species appeared to have changed little in abundance ... , and followed primarily fluctuations in year-class strength and the environment. However, stocks of ...

   Meeting Document : WG-FSA-00/14 : Autor(es): K.-H. Kock (Germany) and C. Jones (USA)

9. China’s plan for marine investigation and assessment in the East Antarctic sector

   almost 10% of the world ocean, the collection of scientific data and information in support of effective ... field of scientific research in order to extend knowledge of the marine living resources of the ... SC-CAMLR on the marine living resources and the ecosystem in this region, including in the process of ... Abstract:  Given the large scale and hostile condition of the Southern Ocean, which accounts for ...

   Meeting Document : CCAMLR-38/BG/53 : Autor(es): Delegation of the People’s Republic of China

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

    than that obtained in 2017, with an MCMC estimate of 70 519 tonnes (95% CI: 65 634- 76 626 tonnes). The ... predicted drop in SSB status by 2021, the time of the next stock assessment, was largely independent of the ... the end of 2019 and observations until the end of 2018. The updated assessment model is based on the ... best available estimates of model parameters, the use of abundance estimates from a random stratified ...

    Meeting Document : WG-FSA-2019/32 : Autor(es): P. Ziegler

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