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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. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

    x are mature. results and discussion Sample selection Most specimens analysed (75%) came from sta- tions ... %x 38.75 - 46.43 - Age-at-maturity Years A50%x 10.6 - 13.6 - Figure 5: Fitted maturity ogives ...

    Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 291–303 : Author(s): Marriott, P.M., M.J. Manning and P.L. Horn

  2. Beyond MSY: a consideration of definitions of management objectives

    curves. J.Cons.Int.Explor.Mer 40 (1): 67-75. SHEPHERD, J.G. (in press). Fish stock assessments ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.

  3. New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands

    (depths: 75 to l10 m) was investigated every three months both by bottom trawl (31 m groundrope length ...

    Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Author(s): Duhamel, G

  4. Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina

    . - 75 - REFERENCES Everson I. 1984. Areas of seabed within selected depth ranges in the south-west ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Author(s): Kreft, K. and J. Szynaka

  5. Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change

    the Pine Island glacier (100.000°W 75.000°S) seems to have resulted mainly from stronger circulation ... ); Subarea 48.5 has nine indi- vidual areas, with a total area under ice shelves of 75 706 km2 (equivalent ...

    Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Author(s): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock

  6. The Kerguelen database

    _______ _ JAS --------ONO JFM AI1.I 1985 __ _____ _ JAS -----,--- _, __ _ , __ 0 ___ , __ 75 _0 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 23-54 : Author(s): Duhamel, G.

  7. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

    for details of that original design). 75 Intra-annual and spatial variability and multiple acoustic ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

  8. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

    2+ was by far the most abundant group (75.8%) in 1989/90 and showed even higher proportions (78.4%) in summer ... . Stratification and currents off Elephant Island in early February 1976. Meeresforsch.27: 75-87. STEPNIK, J.C ... 3+ 23.42 (27.92)* 27.36 4+ 26.94 26.75 ;::; 5+ 25.97 25.22 Nx 109 1+ 66.4 (9 106)* 63.7 (4011 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Author(s): Siegel, V.

  9. Depth distribution and spawning pattern of Dissostichus eleginoides at South Georgia

    at age 10; Moreno, 1998). The size at 50% maturity (L50'x,) in 1998 calculated from our data was 75 cm ... "W and 53.25-53.75"s did produce some of the highest catch rates of the season (up to 0.5 kg/hook compared ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 19–36 : Author(s): Agnew, D.J., L. Heaps, C. Jones, A. Watson, K. Berkieta and J. Pearce

  10. Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses

    : Gobiidae) in Lake Pamvotis, NW Greece. J. Appl. Ichthyol., 28 (1): 75–81. Gröhsler, T. 1992 ...

    Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Author(s): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*

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