| 摘要 |
A structure for spawning ground blocks is provided to protect fish eggs and hatched little fishes from a food chain by creating a safe inhabitation space for fishes, shellfishes and microorganism on the ground in a small river. A spawning ground block includes: a sand-pebble ground(20) along the bottom of slopes(10) of a river bank; precast concrete panels(30) installed in a line on the sand-pebble ground; ecology blocks(100) to provide an inhabitation space for fishes and shellfishes on the concrete panels. Plural bank protection blocks(11,12) are arranged in longitudinal and latitudinal grids on the slopes of river bank so that the slopes can be environment-friendly with grasses and trees by planting in the plant hole formed by the bank protection blocks. The ecology blocks have a 1st and a 2nd ecology block(110,120) with inhabitation holes respectively, which are installed in turn repeatedly on the concrete panels. |
