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  • 《农业农村部:2025年全国农作物 耕种收综合机械化率达到75%》
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  • 《农业农村部:2025年全国农作物 耕种收综合机械化率达到75%》
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  1. Estimating unaccounted fishing mortality in the Ross Sea region and Amundsen Sea (CCAMLR Subareas 88.1 and 88.2) bottom longline fisheries targeting Antarctic toothfish

    5). If the calculated CPUE for any season-SSRU-vessel was less than the 75th percentile of the overall CPUE ... distribution (approximately 0.45 kg per hook; see Figure 5), then this value was replaced with the 75 ... th percentile value. The 75th percentile value was chosen because this was the value at which CPUE began ... to asymptote with increasing soak times (comparing the mean catch rate at longer soak times with the 75 ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 17–30 : Author(s): Webber, D.N. and S.J. Parker

  2. A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem

    Paper Title:  A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem Abstract / Description:  The history of human harvests of seals, whales, fish and krill in the Antarctic is summarised briefly, and the central role played by krill emphasised. The background to the

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Author(s): Mori, M. and D.S. Butterworth

  3. The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns

    47 7 18 6 35 6 97 8 44 0 51 6 35 6 75 2 3 89 9 19 81 44 8 13 2 28 8 86 ... 2 3 21 2 19 83 22 9 77 1 13 9 48 9 18 0 29 0 12 8 75 1 2 17 0 19 84 12 8 21 ... 3 00 6 3 63 4 19 90 37 4 85 6 35 0 21 3 27 3 40 9 27 2 75 1 4 20 9 19 91 ...

    Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky

  4. Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)

    2 7 4 7 35.01 3.98 91 36.00 1 22 22 22.00 2 48 91 72.68 11.80 2 8 75 78 76.50 2.12 2 2 0 35 26.67 4.80 ... = 0.9764 Total length (cm) 60 f Global 0 25 50 75 100 125 150 175 Total length (cm) Figure ... -desove. Contenido estomacal de Dissostichus rnasusoni: 0 - vacio, 1 - 25% lleno, 2 - 50% lleno, 3 - 75 ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Author(s): Arana, P.M. and R. Vega

  5. Is current management of the Antarctic krill fishery in the Atlantic sector of the Southern Ocean precautionary?

    . the total weight of reproductively mature individuals) after 20 years of fishing should not be below 75 ... definitions of the bad events that it is trying to avoid (spawning stock biomass falling below 75% and 20 ... is designed to maintain average krill biomass above BMSY, at 75% of unexploited biomass (Miller and Agnew ... 75% of its unexploited level aims to reserve part of the stock’s production for predators ...

    Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 31–51 : Author(s): Hill, S.L., A. Atkinson, C. Darby, S. Fielding, B.A. Krafft, O.R. Godø, G. Skaret, P.N. Trathan and J.L. Watkins

  6. The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)

    . In: The Living Resources of the Southern Ocean. FAO GLO/SO/77/1, Rome: 75–112. Hilborn, R. and C.J. Walters ... * N or th w es t Fe m al e 0. 00 03 30 * 0. 00 00 17 * 0. 75 05 57 ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Author(s): Lord, C., G. Duhamel and P. Pruvost

  7. Seabird mortality in the Patagonian toothfish longline fishery around Crozet and Kerguelen Islands, 2001–2003

    method results in 100% of all hooks being baited, while sometimes only 75% are baited using ... 1 1 0 0 1 4 1 0 E st im at ed m or ta lit y * 10 6 53 1 16 8 13 3 46 70 1 36 6 95 75 2 20 ... ), grey petrels account for 75 to 95% of total mortality, fol- lowed by white-chinned petrels and giant ... , the white-chinned petrel was the most frequently killed species (75–98% depend- ing on the season ...

    Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 53–80 : Author(s): Delord, K., N. Gasco, H. Weimerskirch, C. Barbraud and T. Micol

  8. A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    . squid alone) are excluded. CCAMLR Science, Vol. 18 (2011): 75–114 75 A REVIEW OF THE DIET AND AT-SEA ... of both 1990 and 1992 (Fish composition by mass was 75% (mostly P. antarcticum and Pago­ thenia ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Author(s): Ratcliffe, N. and P. Trathan

  9. A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula

    between years, and that 75 to 90% of the total catch for the subarea was taken between December ... ); Adelie: 75 kg/p/m (December to January), 65 kg/p/m (February to March); gentoo: 50 kg /p /m (December ...

    Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Author(s): Agnew, D.J. and G. Phegan

  10. Status of the FIBEX acoustic data from the West Atlantic

    a density above zero show a nearly normal distribution with a mode between -75 and -70 dB. For Itzumi ... , Hobart, Australia: 75-86. Macaulay, M.C., T.S. English and O.A. Mathisen. 1984. Acoustic ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Author(s): Trathan, P.N. and I. Everson

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