磯焼け対策ガイドラインの改訂に向けて

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タイトル別名
  • Toward the Revision of Isoyake Taisaku Guideline
  • イソ ヤケ タイサク ガイドライン ノ カイテイ ニ ムケテ

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As seven years have passed since the publication of 'Isoyake Taisaku guideline' (Fisheries Agency 2007), it is now under revision. The guideline introduced the adaptive management (AM) and collaboration among fishermen, administrative, researcher and citizen, and strongly recommended flexible soft techniques to restore seaweed beds on deforested areas; component techniques were categorized into 25 groups for convenience and commented with illustration. The guideline has been a core of the subsequent national restoration projects (2007-2009, 2010-2014) and practical supporting programs (2009-2012, 2013-2015), in which many improvements and the subsequent success of restoration were brought. In spite of rapid environmental deterioration and decrease of fishermen, former status (i.e., misunderstanding of deforestation, abuse of hard techniques, short of knowledge for planning and practicing, inadequate support system, utilization of nasty herbivores) has been highly improved. All of these progresses as well as the current status should be included in the revised version, while the useless techniques should be reconsidered. Furthermore, the ways to decide initial target and enlarge and monitor restored beds should be also shown. Finally, importance of base data, man, skill and flow in the restoration should be emphasized to achieve the goal and the AM cycle should be coupled with daily monitoring of seaweed beds.

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