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1. An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)

   length. It assumes a maximum age or length above which a fish is no longer available to the gear. Each ... Abstract:  This paper presents an assessment of the harvested population of Patagonian toothfish ... at Macquarie Island based on data from a tag-recapture experiment initiated during the 1995/96 ... , catches, recaptures, natural mortality, and annual net recruitment are used to assess the population of ...

   Meeting Document : WG-FSA-00/43 : Author(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)

2. GROUNDFISH SURVEY IN CCAMLR SUB-AREA 48.3 IN APRIL 2008 WITH PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH

   Abstract:  In April 2008 the UK undertook a bottom trawl survey of CCAMLR Sub-Area 48.3 on the FV ... Sil, with 70 bottom trawls undertaken giving good geographic coverage. Using 10 strata and the updated ... sea-floor areas and adjusting this for the low headline height of the UK trawl (see CCAMLR WG-FSA ... (2003), the biomass of mackerel icefish was estimated to be 80,426 tonnes, with a lower 1-sided 95% CI ...

   Meeting Document : WG-FSA-08/28 : Author(s): M.A. Collins, R.E. Mitchell, C.E. Main, J. Lawson, J. Watts, J. Slakowski, L. Featherstone and O. Rzewuski (UK)

3. Chiller killers – first steps towards identifying krill pathogens

   importance as components of the global food chain, and krill are no exception to this with very few studies ... Abstract:  Antarctic Krill (Euphausia superba) is a ‘keystone species’ in the Southern Ocean ... providing the main source of food for many taxa high in the food chain such as baleen whales, penguins and ... remains a deficit area with little to nothing known about infection dynamics. Over the past century the ...

   Meeting Document : WG-EMM-15/23 : Author(s): K. Bateman, R. Hicks, G. Tarling, M. Soeffker and G. Stentiford (United Kingdom)

4. Antarctic icefishes (Channichthyidae) – a unique family of fishes – a review

   Abstract:  Icefish are a family of species unique among vertebrates in that they possess no ... haemoglobin. With the exception of one species, icefish live only in the cold – stable and oxygen – rich ... environment of the Southern Ocean. It is still questionable how old icefish are in evolutionary terms: they ... may not be older than 6 MA, i.e. they evolved well after the Southern Ocean started to cool down or ...

   Meeting Document : WG-FSA-04/10 : Author(s): K.-H. Kock (Germany)

5. Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica

   Abstract:  Icefish (Channichthyidae) specimens were randomly collected by observers during the ... toothfish in the Ross Sea (Areas 88.1 and 88.2). Biological data from 303 returned specimens was collected ... , diet, and age estimation. All of the icefish sampled were identified as Chionobathyscus dewitti, and ... showed no significant difference in sex ratio. Meristic, diet and age data were consistent with previous ...

   Meeting Document : WG-FSA-07/25 : Author(s): C.P. Sutton, M.J. Manning, D.W. Stevens, P.M. Marriott (New Zealand)

6. Identification and speciation of Antarctic skates

   Bathyraja n. sp. cf eatonii. There was no sequence divergence among samples of B. n. sp. “dwarf” from the ... (COI) were sequenced in 9 species of Bathyraja skates from the Southern Oceans and New Zealand. Based ... on significant sequence divergence, the species that has been referred to as Bathyraja eatonii from ... the Antarctic shelf and slope is a species distinct from B. eatonii from the Kerguelen Plateau (the ...

   Meeting Document : WG-FSA-07/27 : Author(s): P.J. Smith, C.D. Roberts, A.L. Stewart, M. McVeagh and C.D. Struthers (New Zealand)

7. Focusing and testing fisher know-how to solve conservation problems: a common sense approach

   Abstract:  Worldwide, the incidental capture or bycatch of marine organisms, especially mammals ... necessitate immediate solutions. Unfortunately, no standard mechanisms exist within stewardship and regulatory ... seabird mortality in two fisheries: the Puget Sound drift gillnet fishery for sockeye salmon and the ... , the cooperative research model we have developed is the same and is proving successful in both. At the ...

   Meeting Document : WG-FSA-03/20 : Author(s): E.F. Melvin and J.K. Parrish (USA)

8. Seasonal and interannual variation in foraging range and habitat of macaroni penguins at South Georgia

   Abstract:  In marine ecosystems, characterisation of the foraging areas and habitats of predators ... is a key factor in interpreting their ecological role. We studied the foraging areas of macaroni ... penguins at Bird Island, South Georgia, throughout the breeding seasons of 1999-2001 using satellite ... the breeding season, between sexes, between years and between individuals. During incubation, on ...

   Meeting Document : WG-EMM-01/19 : Author(s): K.E. Barlow and J.P. Croxall (United Kingdom)

9. Trends in mean lengths and selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3

   seasons but with no consistent overall trend. The analysis also suggested that the exploitable population ... Abstract:  At its last meeting, WG-FSA noted a declining trend in the mean lengths of toothfish ... caught around South Georgia and Shag Rocks over the period 1995 – 1999. We re-analysed the mean lengths ... found the same declines in mean lengths for the period 1997 – 1999 as previously noted by WG-FSA, but ...

   Meeting Document : WG-FSA-01/48 : Author(s): G.P. Kirkwood and D.J. Agnew (United Kingdom)

10. Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2

    showed no trends with any factors for M. whitsoni. The low levels of mercury in D. mawsoni relative to ... Abstract:  The mean mercury level for the D. eleginoides 1998 sample was 0.43 mg/kg-1, which is ... slightly lower than the permissible level of 0.5 mg/kg-1 set by the New Zealand Food Safety Authority ... (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ...

    Meeting Document : WG-FSA-07/24 : Author(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)

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