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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. Fishery report: Champsocephalus gunnari Heard Island (Division 58.5.2)

    Reported catch (number of vessels) (tonnes) (tonnes) 1971/72 5 860 1973/74 7 525 1974/75 ... biomass to below 75% of the level that would occur in the absence of fishing within the two years ...

    Document : Site Section: Publications

  2. Fishery Report: Champsocephalus gunnari Heard Island (Division 58.5.2)

    - - 7 525 1974/75 - - 9 710 1976/77 - - 15 201 1977/78 - - 5 166 1989/90 - - 2 1991/92 - - 5 1992/93 ... 5% probability: reduce the spawning stock biomass to below 75% of the level that would occur in the absence ...

    Document : Site Section: Publications

  3. Fishery Report: Dissostichus eleginoides (TOP) Kerguelen Islands (Division 58.5.1)

    March) that has been in place since 2004. 60°E 65°E 70°E 75°E 80°E 60°S 55°S 50 ... values of 45 46 47 48 49 50 51 52 62 63 64 65 66 67 68 69 70 71 72 73 74 75 TOP 58.5.1 ...

    Document : Site Section: Publications

  4. Composition and characteristics of ichthyofauna in pelagic waters of South Georgia (Subarea 48.3)

    at the depth layers 0-15, 50, 75, 125 and 150 m, as well as in the near-bottom layer. The trawl was hauled ... -490 May S. Georgia % a g e 62-132 140-270 170-390 75-128 180-350 82-130 142-450 ... was 98 mm to the west of the island, 91 mm to catches and below 75 m at night. Older age ... Evrika 1988 No. Yo 276 0.6 94 0.2 75 0.2 + + 851 1.7 + + 65 0.1 521 1.1 12 214 24.6 209 ...

    Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 125–164 : Author(s): Frolkina, G.A., M.P. Konstantinova and I.A Trunov

  5. Commercial krill fisheries in the Antarctic, 1973 to 1988

    10.25,13.75 Klindt 1986 Nov/Dec 1984 SIBEXII 48.1 379750 54.8g/103m3 5.48 9.89,18.15 Klindt 1986 Mar/Apr ... 1983 SIBEXI 48.1 723000 1 03.2g/1 03m 3 10.32 10.25,13.75 Marl Apr 1984 SIBEXI 58.4.2 550000 34.8g/10 ... x: ---V) LLJ z z 0 f- 500 400 300 200 100 All but SUN, JPN SUN JPN 73 74 75 76 77 78 79 80 ... 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 SPLIT-YEAR Figure 3: Reported annual krill catches ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 229–281 : Author(s): Miller, D.G.M.

  6. A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data

    of absolute abundance of the fish population in the RSR. 60° S 65° S 70° S 75° S 80° S 150 °E 160 ... ) 11.99 (± 5.25) 16.92 (± 7.68) Stock recruitment steepness (Beverton-Holt) h 0.75 Recruitment ... (B2013) was 51 530 tonnes (75% of B0). As described above, initial maximum of the posterior density ... 100 120 60 65 70 75 80 85 90 D en si ...

    Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Author(s): Mormede, S., A. Dunn and S.M. Hanchet

  7. e-sc-xxi.pdf

    ... ADOPTION OF THE REPORT...................................................................... 75 CLOSE ... OF THE MEETING .......................................................................... 75 REFERENCES ... ........................................................................................... 75 TABLES ... ADOPTION OF THE REPORT...................................................................... 75 CLOSE OF ... THE MEETING .......................................................................... 75 REFERENCESdownload attachment application/pdf attached to:SC-CAMLR-XXI

    Meeting Report : SC-CAMLR-XXI

  8. Scientific Abstracts 1997

    (March) was 75% greater than the previous year, which was itself an eight-fold increase over any earlier ... of 8 items or 75% of initial survey, 23 out of 26 items or 88% of second survey). Of the 29 such items, 12 ... injury was being caused to 75% of animals at Signy Island (15% at Bird Island) and none was seen to have ...

    Document : Site Section: Publications

  9. 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

  10. 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

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