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1. 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 : Автор(ы): R. Sarralde, L.J López Abellán and S. Barreiro (Spain)

2. 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 ... Antarctic toothfish stock assessment for the Ross Sea fishery. In particular we review catch history, length ... runs that investigate the sensitivity of the 2006 stock assessment to changes in these model inputs and ... parameters. Tree-regression methods were used to investigate the areal structure of the length distribution ...

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

3. 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 : Автор(ы): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.

4. LENGTH AND AGE AT SPAWNING OF ANTARCTIC TOOTHFISH DISSOSTICHUS MAWSONI IN THE ROSS SEA

   male Antarctic toothfish Dissostichus mawsoni from fish sampled in the Ross Sea spanning the 2000-2009 ... fishing seasons. The female spawning ogive incorporates the proportion of sexually mature fish that do not ... management decision rules. A characterisation of the oocyte developmental cycle of Antarctic toothfish shows ... that primary endogenous growth can occur for an extended period with oocytes accumulating at the ...

   Meeting Document : WG-FSA-09/37 : Автор(ы): S.J. Parker and P.J. Grimes (New Zealand)

5. 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 : Автор(ы): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)

6. Hydrographic conditions in the Elephant Island plateau region during December 1996

   Abstract:  Based on historic data as provided by the World Ocean Atlas 1994, the general climatic ... background for temperature, salinity and silicate is given for the area between the Fa1kland (Malvinas ... ) Islands and the Antarctic Peninsula Region. A data set sampled during December 1996 in the Elephant Island ... Plateau Region by RV POLARSTERN, is compared to the climatic background data, and to more recent data as ...

   Meeting Document : WG-EMM-97/06 : Автор(ы): Stein, M.

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 : Автор(ы): T. Ichii, H. Ishii and M. Naganobu (Japan)

8. Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees

   trees to derive relationships between environmental conditions and the distribution of the adult stage ... of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the ... Southern Ocean Continuous Plankton Recorder survey (87% from East Antarctica) were used to model the ... waters. We demonstrate that it is possible to obtain reasonable models for both the presence (area under ...

   Meeting Document : WG-EMM-10/P14 : Автор(ы): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve

9. 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 : Автор(ы): A. Constable, S. Candy and I. Ball (Australia)

10. 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 : Автор(ы): S. Mormede and S. Parker

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