Whale-Fall Ecosystems and Two "Stepping Stone" Hypotheses

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  • FUJIWARA Yoshihiro
    Chemo-Ecosystem Evolution Research Team, Japan Agency for Marine-Earth Science and Technology
  • KAWATO Masaru
    Chemo-Ecosystem Evolution Research Team, Japan Agency for Marine-Earth Science and Technology

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  • 鯨骨生物群集と二つの「飛び石」仮説
  • ゲイコツ セイブツ グンシュウ ト フタツ ノ トビイシ カセツ

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  Whale carcasses support unique biological assemblages in deep sea. The carcasses release reducing chemicals such as hydrogen sulfide and nourish chemosynthesis-based biological communities. Two “stepping-stone” hypotheses regarding whale-fall ecosystems have been proposed. One explains a dispersal pathway for hydrothermal vent/hydrocarbon seep faunae in the deep sea and another an evolutionary process of vent/seep specialists. Here we summarize the whale-fall ecosystems, especially in Japanese waters and our attempts to verify the hypotheses.<br>

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