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1. Results of study of the oogenesis characteristics of Antarctic toothfish (Dissostichus mawsoni Norman 1937) (Nototheniidae) from Subareas 88.1 and 88.2 (Ross Sea)

   Abstract:  The results of the histological analysis of the Antarctic toothfish (Dissostichus ... mawsoni) reproductive system, caught in December-March, 2004-2005 by the longliner VOLNA in subareas 88.1 ... and 88.2 in the Ross Sea are presented. The morphological parameters, indices of gonads have been ... described. The histological criteria of the assessment of the ovary maturity stages and cytological ...

   Meeting Document : WG-FSA-07/49 : Author(s): S. V. Piyanova and A.F. Petrov (Russia)

2. Defining fishing grounds in the Scotia Sea

   commercial catch data for the region held in the CCAMLR database. It also summarises available information on ... krill distribution and abundance and movement for the region, which can be used to help understand the ... relationship between the fishing grounds and the krill population. We define a fishing ground as being a ... predictable location where the fishery obtains relatively reliable catches from one year to the next over a ...

   Meeting Document : WG-EMM-02/40 Rev. 1 : Author(s): I.R. Ball and A.J. Constable (Australia), S. Kawaguchi (Japan) and D. Ramm (CCAMLR Secretariat)

3. Revised research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: Fundamentals and procedures (this is a revision of WG-SAM-12/13)

   Abstract:  A revision of the research plan for the Spanish exploratory longline fishery for ... Dissostichus spp in Divisions 58.4.1 and 58.4.2, submitted to the XXXI-WG-SAM, taking into account the ... suggestions made by the Working Group is presented. Two methods to estimate the local biomass of the toothfish ... are proposed, a depletion experiment together with the tag of some specimens using the DeLury model ...

   Meeting Document : WG-FSA-12/69 : Author(s): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)

4. Stable isotope analysis reveals trophic variation in adult Antarctic krill (Euphausia superba) around the Antarctic Peninsula from austral fall to early winter

   Abstract:  The Antarctic krill (Euphausia superba) is a key species in the Southern Ocean ... ecosystem and an important link in the food web of the Antarctic ecosystem. The trophic information for this ... species during the transition from the austral fall to the winter is important to understand its poorly ... known overwintering mechanisms. However, the few studies on the topic differ in their results, in terms ...

   Meeting Document : WG-EMM-2019/P03 : Author(s): H.T. Zhang, G.P. Zhu, Q. Song, S.Q. Wang, Y. Yang and Q.Y. Yang

5. Analysis of trawl data from the South Georgia krill fishery

   Abstract:  Data from individual trawls carried out by vessels operating in the krill fishery at ... South Georgia are examined and a range of descriptive measurements reflecting the operation of the ... fishery are produced. The measurements indicate that the krill fishery at South Georgia is geographically ... focussed, operating in a limited area along the shelf edge on the northern coast of the island. Each day a ...

   Meeting Document : WG-EMM-97/41 : Author(s): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.

6. A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08

   Abstract:  The exploratory fishery for Antarctic toothfish (D. mawsoni) has been operating for ... eleven years in Subarea 88.1 and for six years in Subarea 88.2. This report summarises the large amount ... of data collected on toothfish and the associated bycatch by all vessels participating in the fishery ... . All SSRUs in the two subareas except for 88.1D and 88.2C have now been fished. The 2008 D. mawsoni ...

   Meeting Document : WG-FSA-08/22 : Author(s): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)

7. Factors influencing Antarctic krill distribution in the South Shetlands

   Abstract:  The influences of biological and physical factors in the environment upon krill ... (Euphausia superba) distribution were studies in the area north of South Shetland Islands during 1990/91 ... in mid-summer the abundance was low in the oceanic zone (8.5 g/m2), while higher in the slope frontal ... zone (37.3 g/m2), and the highest along the shelf break (135.1 g/m2) in the inshore zone; krill were ...

   Meeting Document : WG-KRILL-93/38 : Author(s): T. Ichii, H. Ishii and M. Naganobu (Japan)

8. An investigation of integrated stock assessment methods for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL

   primarily based on the 2005 assessment implemented in the Generalised Yield Model (GYM) using survey data of ... the abundances of juvenile fish but adding fishery catch-at-length data, including a standardised ... catch-per-unit-effort (CPUE) series. The base-case scenario was then extended to include estimates of ... IUU catch and mark-recapture data. Key sensitivity trials were also used to explore the tension ...

   Meeting Document : WG-FSA-SAM-06/14 : Author(s): A. Constable, S. Candy and I. Ball (Australia)

9. Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region

   Abstract:  The Amundsen Sea region (ASR) is currently managed under a research plan, which has ... shown promising results to date, with 8 interseason tags recaptured in the South area in 2016 and 12 ... (preliminary recaptures) in 2017. The aim of this paper is to ascertain when the Amundsen Sea region stock ... assessment model is likely to provide management advice, and to investigate the effects of using either two ...

   Meeting Document : WG-SAM-17/40 : Author(s): S. Mormede and S. Parker

10. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2003/04

    and the associated bycatch from the fishing operations has been collected. This report is somewhat ... different to earlier reviews of the exploratory fishery. In the first instance, it reports catches by the ... new SSRUs used to manage Subarea 88.1; secondly, the report includes catch data from all countries ... fishing in the area, whereas previous reports included data from only New Zealand vessels; and thirdly ...

    Meeting Document : WG-FSA-04/20 : Author(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and P.L. Horn (New Zealand)

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