Search results
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
cover a highly spatially structured stock. It is recommended that the mark-recapture data not be ... yield using CASAL, 2,306 tonnes, is less than that using the GYM, 2483 t. The reasons for this ... yields be estimated by integrating across uncertainties in natural mortality. It is also recommended that ... using CASAL and demonstrates that all of the data available for assessments, including surveys, fishery ...
Meeting Document : WG-FSA-06/64 : Author(s): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)
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Verification of the CMIX procedure on species with known age-length keys
Subarea 26. Age-length keys for 1995-2001 and length frequency data obtained during the surveys carried ... -length keys for 1995-2001 and length frequency data obtained during the surveys carried out by research ...
Meeting Document : WG-FSA-SAM 03/5 : Author(s): P. Gasiukov (Russia)
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In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species
each animal039;s spheroidal nucleus. Consistent with the measurements of encaged krill [K.G. Foote et ... distributions (CDF039;s) of Δσbs derived from the differences in abs measurements at two frequencies. About 15 ... salps from krill is highly dependent on the degree to which the two CDF039;s differ. A simulated ... combination of 200 kHz and 38 kHz resulted in highly distinguishable CDF039;s, indicating ...
Meeting Document : WG-Krill-94/12 : Author(s): D.A. Demer and R.P. Hewitt (USA)
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Otolith microstructure of juvenile fish, the first annulus radius and pelagic stage duration of icefish Champsocephalus gunnari (Channichthyidae) in the South Georgia area
represent a mixture of two year-classes of 1999-2000 and 2000-2001. The mean width of the daily growth zone ... that the period of eggs incubation and larvae hatching of the year-class 2000 – 2001 was about 4 months. Author ... a mixture of two year-classes of 1999-2000 and 2000-2001. The mean width of the daily growth zone ... that the period of eggs incubation and larvae hatching of the year-class 2000 – 2001 was about 4 months. ...
Meeting Document : WG-FSA-03/75 Rev. 1 : Author(s): L.V. Shcherbich (Russia)
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Interannual variations of water thermochaline structure on South Georgia Island, South Orkney Islands and Shetland Islands shelves
characteristics, T,S diagrams039; typification has been realized for hydrological stations carried out ... to the bottom, being observed at the same time, higher salinity. The third type (1970, 1976, 1984, 1989 ... ) was characterized by higher degree of principal water mass mixing within the area and lack of distinct boundaries ... could be used when analysing krill aggregations039; distribution and density for the period of years ...
Meeting Document : WG-EMM-00/34 : Author(s): P. Chernyshkov, V. Shnar, O. Berezhinsky and I. Polischuk (Russia)
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Trends in breeding numbers and survival of black-browed (Thalassarche melanophrys) and grey-headed albatrosses (T. chrysostoma) breeding on Macquarie Island
Abstract: Black-browed (Thalassarche melanophrys) and grey-headed (T. chrysostoma) albatrosses ... are globally threatened seabirds that breed on remote subantarctic islands. Population trends of black ... conjunction with data from a more intensive ten year monitoring program. Survival estimates were also ... conclusive evidence of survival varying over time and it is unlikely that these populations have been ...
Meeting Document : WG-FSA-04/48 : Author(s): A. Terauds, R. Gales and R. Alderman (Australia)
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Recent population estimates and trends in numbers of albatrosses and giant petrels breeding at the sub-Antarctic Prince Edward Islands
remained stable, whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 (3% per ... in 2001 and 2008. Counts of both sooty albatrosses Phoebetria spp. were substantially higher at Prince ... Edward Island in 2008, possibly as a result of better coverage compared to 2001. Dark-mantled sooty ... , whereas the population on Prince Edward Island decreased by 20% from 2001 to 2008 (3% per year ...
Meeting Document : WG-EMM-10/P04 : Author(s): P.G. Ryan, M.G.W. Jones, B.M. Dyer, L. Upfold and R.J.M. Crawford
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Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean
, it would be many millions of dollars greater. Apart from a concern for albatrosses, Japan039;s longline ...
Meeting Document : CCAMLR-IX/BG/17 : Author(s): Delegation of Australia
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Decadal trends in abundance, size and condition of Antarctic toothfish in McMurdo Sound, Antarctica, 1972–2011
the large individuals. CPUE was constant through 2001 and then decreased dramatically. We hypothesize ... the large individuals. CPUE was constant through 2001 and then decreased dramatically. We hypothesize ...
Meeting Document : WG-FSA-12/P04 : Author(s): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries
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Fishing and conservation in southern waters
that of demersal fish stocks by an order of magnitude. By contrast with the 1970039;s and 1980039;s, when most ... of the development of fishing in Southern waters during the 1990039;s. Author(s): Delegation of Germany Title ...
Meeting Document : SC-CAMLR-XII/BG/11 : Author(s): Delegation of Germany