Search results
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Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?
, derived from the subarea catch limit, appears to exceed this level in up to 20% of years due to high ... limit, appears to exceed this level in up to 20% of years due to high variability in krill biomass ... level”), established in 1991, is 0.62 million tonnes year-1, equivalent to ~1% of the regional biomass ... estimates of the regional biomass in recent years. This suggests that the trigger level would be equivalent ...
Meeting Document : WG-EMM-16/21 : Author(s): S. Hill, A. Atkinson, C. Darby, S. Fielding, B. Krafft, O.R. Godø, G. Skaret, P. Trathan and J. Watkins
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
as a breeding area, decreases to 20-40%, while the number of mature specimens 8.5-11 cm in length and 3-5 years ... as a breeding area, decreases to 20-40%, while the number of mature specimens 8.5-11 cm in length and 3-5 years ... E. carlsbergi is represented by immature specimens 7 to 8 cm in length and 2 years of age, indicating dominance ... E. carlsbergi is represented by immature specimens 7 to 8 cm in length and 2 years of age, indicating dominance ...
Meeting Document : WG-FSA-93/18 : Author(s): A.N. Kozlov (Russia)
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
, full size is attained at about 15–20 years of age and they can live in excess of 60 years. However ... ; in M. caml, full size is attained at about 15–20 years of age and they can live in excess of 60 years ... ; M. whitsoni approaches full size at about 10–15 years of age and can live to at least 27 years; in M. caml ... ; M. whitsoni approaches full size at about 10–15 years of age and can live to at least 27 years ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Author(s): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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SUMMER SURVEY OF FUR SEALS AT PRINCE EDWARD ISLAND, SOUTHERN INDIAN OCEAN
gazella and Subantarctic fur seals A. tropicalis were determined at Prince Edward Island during 16–20 ... of 11.4% per year from 2001. With an estimated 810 pups, the Antarctic fur seal is still in the rapid ... rate of natural increase has declined to –0.3% per year over the last seven years, compared to the 9.3 ... % per year between 1987/1988 and 2001/2002, and the population is in the mature phase of population ...
Meeting Document : WG-EMM-10/P15 : Author(s): M.N. Bester, P.G. Ryan and J. Visagie
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2010/11
No. 3 to be conducted in April-June 2011. This is the second year of the survey of the 3-5 years consecutive research ... . The research hauls are allocated on 10-minute latitude x 20-minute longitude grid points, taking into account ... No. 3 to be conducted in April-June 2011. This is the second year of the survey of the 3-5 years consecutive research ... . The research hauls are allocated on 10-minute latitude x 20-minute longitude grid points, taking into account ...
Meeting Document : WG-SAM-10/15 : Author(s): Delegation of Japan
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KRILL FISHERY BEHAVIOUR IN THE SOUTHWEST ATLANTIC
Abstract: 10 years worth of recent finescale haul-by haul krill data were used to characterize ... through the analysis was 15-30 tonnes/haul, which is higher than the 1980s information (5-10 tonne/haul ... tows were 10-15 nm, which is the scale of a single concentration. However, there was considerable year ... to year variability in the probabilities of operating within a local range after a number of tows ...
Meeting Document : WG-EMM-08/39 : Author(s): S. Kawaguchi (Australia)
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Stomach contents of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region in 2010 and a comparison with 2003
icefish, eel-cods, and glacial squid were also important occurring in about 20% of stomachs and by IRI 23 ... been no change in the diet of large (> 100 cm TL) D. mawsoni between the two years. It is planned ... to carry out a more rigorous analysis of these data in the coming year. Author(s): D.W. Stevens, J. Forman ... ’s icefish, eel-cods, and glacial squid were also important occurring in about 20% of stomachs ...
Meeting Document : WG-FSA-10/22 : Author(s): D.W. Stevens, J. Forman and S. Hanchet (New Zealand)
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Power analyses of CEMP indices for penguins at Admiralty Bay and fur seals at Cape Shirreff and Seal Island
a period of 20 years may be feasible for most indices. Detecting trends in indices A8 and C2 may ... a period of 5 years. Nevertheless, detecting trends over a period of 20 years may be feasible for most ... the values of transformed CEMP indices to breeding year are equal to zero when, in fact, these trends ... chance of detecting an actual trend over a period of 5 years. Nevertheless, detecting trends over ...
Meeting Document : WG-EMM-03/52 : Author(s): G.M. Watters, R.P. Hewitt, W.Z. Trivelpiece and M.E. Goebel (USA)
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Summer survey of fur seals at Prince Edward Island, southern Indian Ocean
gazella and Subantarctic fur seals A. tropicalis were determined at Prince Edward Island during 16–20 ... of 11.4% per year from 2001. With an estimated 810 pups, the Antarctic fur seal is still in the rapid ... rate of natural increase has declined to –0.3% per year over the last seven years, compared to the 9.3 ... % per year between 1987/1988 and 2001/2002, and the population is in the mature phase of population ...
Meeting Document : WG-EMM-10/P15 : Author(s): M.N. Bester, P.G. Ryan and J. Visagie
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Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries, approximately 20 ... of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries, approximately 20 ...
Meeting Document : WG-FSA-12/24 : Author(s): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)