植食性魚類は海藻・藻場とどのように関わってきたか(平成17年度日本水産工学会春季シンポジュウム「磯焼け対策を考える〜魚類による過剰食圧の軽減に向けて〜」)

概要

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Recently, browsing by herbivorous fishes has been paid attention as a causative agent of seaweed/seagrass bed reduction in warm temperate waters of Japan. Although occurrence of these fishes has been known for > 100 years, information on their ecology and resource levels has been quite limited. To evaluate the above phenomenon, roles and interactions of marine plants and herbivores were reviewed with special reference to the feeding ecology of herbivorous fishes in the world. The recent prevalence of destructive herbivorous fishes in Japan is very unique enough to reconsider coastal changes and overfishing rather than elevation of water temperature.
2006-07-15