Search results

1. A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL

   Patagonian toothfish (Dissostichus eleginoides) fishery in the Southern Ocean outside of the Atlantic sector ... . Analysis of genetic, demographic and tagging data indicates that toothfish form a metapopulation in this ... region. This paper describes the development of a CASAL model incorporating data from research ... step forward in understanding the dynamics and current status of toothfish across the Kerguelen Plateau ...

   Meeting Document : WG-SAM-11/20 : Author(s): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)

2. Krill caught by predators and nets: differences between species and techniques

   Abstract:  Samples of Antarctic krill collected from six seabird species and Antarctic fur seal ... the same time. The length-frequency distribution of krill was broadly similar between predators and ... that foraging techniques were more important than foraging location in influencing the type of krill in ... this time of year may reflect some combination of selectivity by predators and superior escape ...

   Meeting Document : WG-EMM-96/09 : Author(s): Hill, H.J., Reid, K., Trathan, P.N., Croxall, J.P.

3. OPERATIONAL DIFFICULTIES IN IMPLEMENTING THE CCAMLR TAGGING PROTOCOL IN DIVISION 58.4.1 IN 2007/08

   a high mortality rate of fish on these lines; only fish with a high chance of survival were tagged ... closed on 30 January 2008). • The vessel caught a total of 9.757 t of Dissostichus mawsoni in Division ... of 3 fish tagged per tonne of green weight caught required in Conservation Measure 41-11(2007). The ... tag fish in excess of the required rate when the opportunity arose: • in Division 58.4.3a the vessel ...

   Meeting Document : WG-FSA-08/16 : Author(s): A.T. Lozano and O. Pin (Uruguay)

4. Decadal trends in the South Georgia demersal fish assemblage

   on the Shag Rocks and South Georgia Shelf region between 1986 and 2013. Consistent hotspots of fish ... years accounting for 97% of total demersal fish biomass. The relative abundance of these species was ... not uniform between strata. Trends in SSB for the five most abundant species of the South Georgia ... shelf show no consistent trends between species. There is evidence of increasing biomass in the marbled ...

   Meeting Document : WG-FSA-13/26 : Author(s): M. Belchier (United Kingdom)

5. Research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.3a

   improve the estimation of current biomass. An update of the assessment of Dissostichus eleginoides using a ... abundance for D.eleginoides, averaged over all available estimates is 403 tons. Application of the harvest ... rate applied to D. eleginoides in Subarea 48.4 (γ = 0.038) gives yields of 15 tons. But biomass ... ). CASAL and Petersen estimates were based on tags released and recaptured only in the western part of Elan ...

   Meeting Document : WG-SAM-14/17 : Author(s): Delegation of France

6. Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model

   estimate the effects of the fishery on the krill population. The model estimates parameters representing ... then applies these parameter values to future projections (2015-2034) at pre-specified levels of future ... the CCAMLR decision rules. An alternative pair of decision rules to those currently employed by CCAMLR ... spawning biomass instead of to projections with no fishing. Catch levels that meet the various decision ...

   Meeting Document : WG-EMM-15/51 Rev. 1 : Author(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)

7. The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17

   plan since the 2015 fishing season. The aim of the research plan is to collect sufficient information ... to carry out a reliable stock assessment of the toothfish stock in that area. In this report, we ... precautionary. In the 2016 and 2017 seasons, a total of 19 tagged fish (excluding within season recaptures) were ... recaptured in the research blocks in the South Amundsen Sea region, confirming the utility of the research ...

   Meeting Document : WG-FSA-17/39 : Author(s): S. Parker and S. Mormede

8. New Zealand research voyages to the Ross Sea region in 2018 and 2019

   Abstract:  This paper provides a summary of research carried out during New Zealand’s 2018 voyage ... to the Ross Sea region, and gives notice of a New Zealand 2019 research voyage to the Ross Sea region ... monitor outflow of Antarctic Bottom Water at the continental shelf-break in the Cape Adare region; (2 ... ) surveys of seabed habitats and fauna at previously un-surveyed sites on Iselin Bank, Scott C seamount, and ...

   Meeting Document : WG-EMM-18/02 : Author(s): D. Bowden, R. O’Driscoll and M.H. Pinkerton

9. Research results from the SPRFMO exploratory fishing program for Antarctic toothfish 2016 and 2017

   August 2016 (Fenaughty et al. 2016) and September 2017. Analysis of the information collected showed high ... catch rates of post-spawning Antarctic toothfish, similar in magnitude to catch rates in the north ... region of CCAMLR subareas 88.1 and 88.2. The toothfish catch was almost entirely Antarctic toothfish ... except for two juvenile Patagonian toothfish. Sex ratios showed a high proportion of males to females ...

   Meeting Document : WG-FSA-18/39 : Author(s): J.M. Fenaughty, M. Cryer and A. Dunn

10. Report on fish by-catch during exploratory fishing activities in Division 58.4.3a (Elan Bank) between 2008 and 2018

    Abstract:  We report on objective 2 “inform estimations of the distribution, relative abundance ... , and life history of the main bycatch species” of the suspended research plan on Patagonian toothfish ... -annual variations in bycatch patterns, spatial distribution and biological parameters of the main bycatch ... strong effects of gear and bathymetry on bycatch composition and biomass. As shown in others regions ...

    Meeting Document : WG-FSA-2019/56 : Author(s): C. Péron, C. Chazeau, N. Gasco and F. Massiot-Granier

Pages