Search results
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Descriptive analysis of the Antarctic toothfish (Dissostichus mawsoni) tagging scheme in the Ross Sea for the years 1997/98 to 2003/04
two years, when tagging has been part of the Conservation Measure, New Zealand vessels have tagged ... between 1.0 and 1.37 toothfish per tonne of catch. Tagging rates by area over the past three years have ... in the northern and eastern SSRUs 88.1C and 88.2E. The maximum movement of Antarctic toothfish from the New ... and minimising tagging mortality. Growth rates of Antarctic toothfish that have been at liberty for 2–3 years ...
Meeting Document : WG-FSA-SAM-05/10 : Author(s): A. Dunn, S.M. Hanchet and K. Maxwell (New Zealand)
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Report on fish by-catch on exploratory fishing in Divisions 58.4.1 and 58.4.2
. The ratio by-catch to target catch was higher in the eastern part of Division 58.4.1. The ratio Macrourus ... to Dissostichus increased in every research blocks during the study period, particularly in the eastern blocks ... where Macrourus CPUE also increased in the last 3 years. Macrourus CPUE was 23kg/1000 hooks in average ... was higher in the eastern part of Division 58.4.1. The ratio Macrourus to Dissostichus increased in every ...
Meeting Document : WG-FSA-18/28 : Author(s): C. Péron, P. Yates, D. Maschette, C. Chazeau, P. Ziegler, D. Welsford, N. Gasco and G. Duhamel
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Trends in bird and seal populations as indicators of a system shift in the Southern Ocean
over the past 50 years in the southern Indian Ocean, the increase starting in mid 1960s and stabilizing ... years in the southern Indian Ocean, the increase starting in mid 1960s and stabilizing in mid 1980s ... Abstract: Although world oceans have been warming over the past 50 years, the impact on biotic ... with a time lag of 2–9 years with temperatures, the population size of most seabirds and seals monitored ...
Meeting Document : WG-EMM-03/53 : Author(s): H. Weimerskirch, P. Inchausti, C. Guinet and C. Barbraud (France)
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Distribution and abundance of Antarctic krill in the vicinity of Elephant Island during the 1994 austral summer
Island and the eastern end of King George Island; the second and third surveys covered approximately 2100 ... X 106 t. Five weeks later highest densities of krill were mapped north of Elephant Island and biomass ... five years of AMLR surveys in the Elephant Island study area and one-fifth of the 1990-1992 average ... and the eastern end of King George Island; the second and third surveys covered approximately 2100 n.mile2 ...
Meeting Document : WG-Joint-94/09 : Author(s): R.P. Hewitt and D.A. Demer (USA)
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
years. This reduced the global population to 26 000 pairs, when including Namibian breeders, and led ... Algoa Bay (Eastern Cape), their breeding localities in these regions being separated by c. 600 km ... period. In both the Western and Eastern Cape provinces, long-term trends in numbers of penguins breeding ... : COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY Approval: Approved ...
Meeting Document : WG-EMM-11/P8 : Author(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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Characteristics of seasonal variation in diurnal vertical migration and aggregation of Antarctic krill (Euphausia superba) in the Scotia Sea, using the Japanese fishery data
range of trawling depth was narrower during spring and early autumn, but greater during middle autumn ... range of trawling depth was narrower during spring and early autumn, but greater during middle autumn ... during summer in SS and SO. Daily average trawling depth tended to be shallower during summer and early ... . However, it shifted to shallower in early spring, when krill began to feed on phytoplankton. Vertical ...
Meeting Document : WG-EMM-04/44 : Author(s): K. Taki, T. Hayashi and M. Naganobu (Japan)
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ASSESSMENT OF PATAGONIAN TOOTHFISH POPULATION IN THE NORTH OF SUBAREA 48.4 USING DATA FROM A FOUR-YEAR TAGGING EXPERIMENT
the early closure of the fishery with only 58.9 t of the 75 t TAC of D. eleginoides taken; 2. The target ... in some years; 6. Analysis of tagging and biometric data suggests that D. eleginoides at 48.4 have similar ... spawned in the early-1990s and that growth parameters are similar for D. eleginoides caught in 48.4 ... FROM A FOUR-YEAR TAGGING EXPERIMENT Approval: Approved ...
Meeting Document : WG-FSA-09/17 : Author(s): J. Roberts and D.J. Agnew (United Kingdom)
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Research program to examine the life-cycle and resource potential of Dissostichus species in the Special Research Zone within the Ross Sea region Marine Protected Area (RSRMPA) in 2017–2027
and stock structure of Dissostichus species in the eastern part of the Ross Sea over shelf and continental ... other CCAMLR country-members. Author(s): Delegation of the Russian Federation Title: Research program ... and stock structure of Dissostichus species in the eastern part of the Ross Sea over shelf and continental ... and vessels from other CCAMLR country-members. ...
Meeting Document : WG-FSA-17/26 : Author(s): Delegation of the Russian Federation
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ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES
to 30 days after the median date of pupping was estimated for the years 1997-2007 at 4.5% (±0.60). Adult ... seal predation was estimated from the rate of mother-pup failed pairs after pups begin entering ... to 30 days after the median date of pupping was estimated for the years 1997-2007 at 4.5% (±0.60 ... at 0.73. Leopard seal predation was estimated from the rate of mother-pup failed pairs after pups begin ...
Meeting Document : WG-EMM-PSW-08/14 : Author(s): M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile)
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Research program to examine the life cycle and resource potential of Dissostichus species in the Special Research Zone within the Ross Sea region marine protected area (RSRMPA) in 2017–2027
and stock structure of Dissostichus species in the eastern part of the Ross Sea over shelf and continental ... other CCAMLR country-members. Implementation of this program can be started in the forthcoming season ... and stock structure of Dissostichus species in the eastern part of the Ross Sea over shelf and continental ... by Russian vessel and vessels from other CCAMLR country-members. Implementation of this program can ...
Meeting Document : WG-SAM-17/21 : Author(s): Delegation of the Russian Federation