<調査報告>羽幌町沿岸に設置したHS-ブロックに使用した間伐材について

概要

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In the last two decades, artificial fish reefs have been developed along the coast of Japan Sea for the enhancement or rehabilitation of coastal fish resources. The materials, design, structure and hydrodynamic stability are the most important of the engineering factors of artificial fish reefs. HS-blocks, artificial fish reefs designed at Haboro system development center, were made of lots of pine trees. Wood components have been damaged by shipworms in the sea about 4 years. So we need to exchange some design of them. Fifteen newly designed HS-blocks were placed at 3-5 m depth off Haboro beaches on December first 1992. Our field observations over the past 7 years, wood components of the newly designed HS-block have got more longevity than HS-blocks.
北海道東海大学の論文
1996-03-21