Search results
-
Hydroacoustic data obtained around Elephant Island and South Orkney Islands during austral summer 2018
of 2018 as a complement to finfish research in Subareas 48.1 and 48.2 using bottom trawling nets ... : Hydroacoustic data obtained around Elephant Island and South Orkney Islands during austral summer 2018 Microsoft ... This document presents the analysis of acoustic data obtained during the austral summer of 2018 ... 2018 ...
Meeting Document : WG-FSA-18/05 : Author(s): N.A. Alegría and P.M. Arana
-
TEMPORAL CLARIFICATION OF THE TRANSITION FROM BLUE PHASE FINGERLING TO EARLY JUVENILE BROWN PHASE IN NOTOTHENIA ROSSII FROM THE SOUTH SHETLAND ISLANDS
juveniles of 8.5-20.9 cm and predominant age groups 1-2 years. Counting of sclerites facilitated ... in the literature: 1) we believe that the duration of the pelagic fingerling stage at sea is less than one year ... juveniles of 8.5-20.9 cm and predominant age groups 1-2 years. Counting of sclerites facilitated ... in the literature: 1) we believe that the duration of the pelagic fingerling stage at sea is less than one year ...
Meeting Document : WG-FSA-09/32 : Author(s): E. Barrera-Oro, E. Moreira, N. Alescio and E. Marschoff (Argentina)
-
Management of C. gunnari in Subarea 48.3
with increased consumption of icefish by Antarctic fur seals in years of poor krill availability. Thus natural ... mortality of icefish may, in some years, increase by a large factor (assumed here to be 4) declining ... by fishing, under conditions where M is assumed to be highly variable from year to year. Author(s): Kirkwood ... of icefish by Antarctic fur seals in years of poor krill availability. Thus natural mortality of icefish may ...
Meeting Document : WG-FSA-97/38 : Author(s): Kirkwood, G.P., Parkes, G.B., Everson, I., Agnew, D.J.
-
Comparison of equal-area cylindrical and circular piston transducers
between cylindrical and circular piston transducers by comparing the performance of the two according ... loss. Under identical conditions of excitation, isotropic ambient noise, and detection threshold of 20 ... and circular piston transducers by comparing the performance of the two according to the principle ... loss. Under identical conditions of excitation, isotropic ambient noise, and detection threshold of 20 ...
Meeting Document : WG-EMM-95/08 : Author(s): Foote, K.G.
-
Progress report on collaborative research for otolith chemistry of Antarctic toothfish Dissostichus mawsoni in the Southern Ocean
Abstract: Otolith chemical analysis is one of important and useful approaches to reveal the stock ... -FSA 2018 about the international collaboration on otolith microchemistry of D. mawsoi, this progress ... Otolith chemical analysis is one of important and useful approaches to reveal the stock structure ... and connectivity of Dissostichus mawsoni in the Southern Ocean. Recalling the suggestion from WG-FSA 2018 about ...
Meeting Document : WG-FSA-2019/61 : Author(s): G.P. Zhu
-
WG-EMM-11
ISLANDS R.J.M. Crawford, P.G. Ryan, B.M. Dyer and L. Upfold WG-EMM-10/P3 A TALE OF TWO ISLANDS ... SEAMOUNT IN THE NORTHERN ROSS SEA (SSRU 881G): TWO POTENTIAL VMEs C.D. Jones (USA), D.A. Bowden (New ... /19 PROGRESS WITH UPDATING OF THE KRILLBASE ANALYSIS A. Atkinson (UK) WG-EMM-11/20 THE ASAM 2010 ... /30 UPDATE ON INTERSESSIONAL WORK BY THE SUBGROUP ON STATUS AND TRENDS ASSESSMENT OF PREDATOR ...
Meeting
-
Dissostichus eleginoides South Georgia (Subarea 48.3)
401 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 10 20 30 40 50 Age R el at iv e Vu ln er ab ... at liberty for one year. By contrast, 50% of fish recaptured in both 2003 and 2004 had been at liberty ... for two or more years. Figure 5.11 shows that recaptures were initially concentrated in the Shag Rocks ... below 20% of its estimated pre-exploitation level of not more than 10% over the 35-year projection ...
Document : Site Section: Publications
-
Cephalopods: Trophic modelling of the Ross Sea
of squid found there, arrow squid (Nototodarus sloani), suggests that the animals live for around one year ... was poorly sampled. The two size classes of paralarvae are possibly two year classes (Lu & Williams 1994 ... ) although they could also represent more than one spawning time in a year (see Cherel & Weimerskirch 1999 ... to grow with eggs maturing and being released one or two at a time. The numbers of eggs produced ...
Document : Site Section: Publications
-
An exploration of the biological data used in the CCAMLR Subarea 48.3 Patagonian toothfish stock assessments
Abstract: WG-FSA 2018 noted that changes in productivity parameters may impact assessment ... WG-FSA 2018 noted that changes in productivity parameters may impact assessment estimates ...
Meeting Document : WG-SAM-2019/32 : Author(s): E. MacLeod, K. Bradley, T. Earl, M. Söffker and C. Darby
-
High-resolution ocean modelling of the South Georgia and South Orkney Islands regions
to generate a ~20 year time series of oceanographic flows and water mass properties, which will provide ... to generate a ~20 year time series of oceanographic flows and water mass properties, which will provide ... in numerical models. Here we describe the development of two regional ocean models that will be used to examine ... . Here we describe the development of two regional ocean models that will be used to examine the detailed ...
Meeting Document : WG-EMM-16/15 : Author(s): E. Young, E. Murphy and P. Trathan