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1. Robust characterisation of the age structure, growth and recruitment of toothfish in the Macquarie Island and Heard Island and McDonald Islands fisheries

   Abstract:  Between 2010 and 2012, AAD, Australian Fisheries Management Authority and Australian fishing industry provided funds to conduct high throughput ageing of toothfish otoliths. 5780 otoliths, collected during the 2000-2011 fishing seasons in Division 58.5.2 and outside the CCAMLR area at

   Meeting Document : WG-FSA-12/P07 : Автор(ы): D.C. Welsford, S.G. Candy, J.J. Verdouw and J.J. Hutchins

2. Population assessment of Patagonian toothfish in Subarea 48.4

   Abstract:  This paper presents an update of the assessment of toothfish (Dissostichus spp.) in Subarea 48.4. The Subarea is divided into two management regions and assessed using a CASAL assessment of D. eleginoides in the northern region and a simple Petersen biomass estimate derived for D.

   Meeting Document : WG-FSA-12/36 : Автор(ы): R. Scott (United Kingdom)

3. Indexing maturation of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region

   Abstract:  The longline fisheries for Antarctic toothfish (Dissostichus mawsoni) in subareas 88.1 and 88.2 have provided more than a decade of observations to aid in understanding the life history and ecology of toothfish. Updated spawning ogives for males and females support the currently used

   Meeting Document : WG-FSA-12/40 : Автор(ы): S. Parker and P. Marriott (New Zealand)

4. Using outputs from spatial population models of Antarctic toothfish in the Ross Sea region to investigate potential biases in the single population model

   Abstract:  We present a method to evaluate potential biases and uncertainty in the tagging assumptions of the stock assessment for Antarctic toothfish in the Ross Sea region using spatially explicit operating models. The method allows investigation of potential biases and uncertainty in the

   Meeting Document : WG-FSA-12/45 : Автор(ы): S. Mormede and A. Dunn (New Zealand)

5. Spatial Population Model User Manual, SPM v1.1-2012-09-06 (rev. 4806)

   Abstract:  SPM (Spatial Population Model) is a generalised spatially explicit age-structured population dynamics and movement model. SPM can model population dynamics and movement parameters for an age-structured population using a range of observations, including tagging, relative abundance, and

   Meeting Document : WG-FSA-12/46 : Автор(ы): A. Dunn, S. Rasmussen and S. Mormede (New Zealand)

6. Models of larvae dispersion of Antarctic toothfish (Dissostichus mawsoni)

   Abstract:  Antarctic toothfish (Dissostichus mawsoni) have a circumpolar distribution, and have been found associated with bathymetric features shallower than 2250 m and typically deeper than 500 m from the Antarctic continent north to approximately 57° S. Efforts to understand early life history

   Meeting Document : WG-FSA-12/48 : Автор(ы): A. Dunn, G.J. Rickard, S.M. Hanchet and S.J. Parker (New Zealand)

7. Summary of toothfish tagging suitability data from paired Spanish line – trotline sets

   Abstract:  Conservation Measure 41-01\Annex C requires participants in exploratory fisheries to only tag fish with a high probability of survival. Further it recommends that fish hooked only in the mouth should be tagged. A new data collection form was implemented in 2012 to allow evaluation of

   Meeting Document : WG-FSA-12/49 : Автор(ы): S. Parker and D. Fu (New Zealand)

8. Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area

   Abstract:  Muraenolepis species are caught in low numbers with bottom longline and trawl gears throughout the CCAMLR Convention Area. There are seven known species in the genus, but more work on the taxonomy of the group is needed and the number of species is uncertain. The few biological studies

   Meeting Document : WG-FSA-12/50 : Автор(ы): S. Parker, P. McMillan and P. Marriott (New Zealand)

9. Demersal fish communities in the Ross Sea region of Antarctica: comparisons between video and trawl survey methods

   Abstract:  Reliable estimates of demersal fish community composition and population densities are essential for understanding the ecological effects of fisheries. Such estimates are conventionally derived from research trawl surveys but video techniques afford an alternative, or complementary,

   Meeting Document : WG-FSA-12/51 : Автор(ы): D.A. Bowden, S.M. Hanchet and P.M. Marriott (New Zealand)

10. Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica

    Abstract:  The diet of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea region was examined based on stomach samples obtained from observers on New Zealand fishing vessels in 2003 and 2010. Overall, the diet of sub-adult toothfish was similar to that of adult toothfish, with a dominance

    Meeting Document : WG-FSA-12/52 : Автор(ы): D.W. Stevens, M.R. Dunn, M.H. Pinkerton and J.S. Forman (New Zealand)

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