三重県における一年生および多年生アマモの繁殖戦略

書誌事項

タイトル別名
  • Reproductive Strategies of Annual and Perennial <I>Zostera marina</I> in Mie, Central Japan
  • Reproductive strategies of annual and perennial Zostera marina in Mie Central Japan

この論文をさがす

抄録

Seed production and “rafting” of Zostera marina L. in outdoor mesocosm tanks were examined to better understand the reproductive strategies of annual- and perennial-type Z. marina populations in Ago Bay, Mie. Almost all spadices on reproductive shoots of annual-type population achieved fruit ripening. Prior to seed release from spadices, annual-type reproductive shoots emerged from bottom sediments due to rafting. In contrast, reproductive shoots of perennial-type population released seeds from spadices, after which were broken off from the leaf sheath. The maturity index of the upper branches in annual-type population was higher than that of the lower branches. In perennial-type population, the maturity index of the upper branches was lower than that of the lower branches. Spadices formation in the upper branches of perennial-type population occurred continuously in the flowering season; however, the maturity index of the upper branches rapidly increased in the second half of the flowering season. Out of the 7286 seeds/m2 produced by annual-type populations, 88% disappeared from the stand and 12% became buried locally. In contrast, out of the 4100 seeds/m2 produced annually by perennial-type populations, 100% were buried locally.

収録刊行物

  • 水産増殖

    水産増殖 57 (4), 531-540, 2009

    日本水産増殖学会

参考文献 (36)*注記

もっと見る

詳細情報 詳細情報について

問題の指摘

ページトップへ