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A platform for research: civil engineering, architecture and urbanism
SHORT-NECK CLAM FISHING GROUND
To provide a short-neck clam fishing ground which can be economically constructed without applying a large scale artificial modification to a tideland developed in a brackish lake, and which can create an environment suitable for growth of a short-neck clam by adjusting a salinity concentration of brackish in a growth area.SOLUTION: A short-neck clam fishing ground comprises: a wall body constructed in a tideland developed in a brackish lake, facing one face side to a land area and repeating drying and submergence according to water level change of brackish by a tide; a growth area arranged in an area which is the one face side of the wall body, in which inflow of brackish is dammed in drying of the wall body, and which is submerged together with the submergence of the wall body; and a water flow pipe whose tideland side opening is provided in the growth area, and whose lake bed side opening is provided in the lake bed of the brackish lake that is positioned at the other face side of the wall body.SELECTED DRAWING: Figure 2
【課題】汽水湖に発達した干潟に対して、大規模な人為的改変を加えることなく、かつ経済的に構築でき、育成領域における汽水の塩分濃度を調整してアサリの生育に適した環境を創出することの可能な、アサリ漁場を提供する。【解決手段】汽水湖に発達した干潟に構築され、一面側を陸域に向けるとともに潮汐による汽水の水位変化により干出と水没を繰り返す壁体と、該壁体の前記一面側であって、該壁体が干出した際に汽水の流入が堰き止められ、該壁体の水没と共に水没する範囲に配置される育成領域と、該育成領域に干潟側開口が設置され、前記壁体の他面側に位置する前記汽水湖の湖底に湖底側開口が配置される通水管と、を備える。【選択図】図２
SHORT-NECK CLAM FISHING GROUND
To provide a short-neck clam fishing ground which can be economically constructed without applying a large scale artificial modification to a tideland developed in a brackish lake, and which can create an environment suitable for growth of a short-neck clam by adjusting a salinity concentration of brackish in a growth area.SOLUTION: A short-neck clam fishing ground comprises: a wall body constructed in a tideland developed in a brackish lake, facing one face side to a land area and repeating drying and submergence according to water level change of brackish by a tide; a growth area arranged in an area which is the one face side of the wall body, in which inflow of brackish is dammed in drying of the wall body, and which is submerged together with the submergence of the wall body; and a water flow pipe whose tideland side opening is provided in the growth area, and whose lake bed side opening is provided in the lake bed of the brackish lake that is positioned at the other face side of the wall body.SELECTED DRAWING: Figure 2
【課題】汽水湖に発達した干潟に対して、大規模な人為的改変を加えることなく、かつ経済的に構築でき、育成領域における汽水の塩分濃度を調整してアサリの生育に適した環境を創出することの可能な、アサリ漁場を提供する。【解決手段】汽水湖に発達した干潟に構築され、一面側を陸域に向けるとともに潮汐による汽水の水位変化により干出と水没を繰り返す壁体と、該壁体の前記一面側であって、該壁体が干出した際に汽水の流入が堰き止められ、該壁体の水没と共に水没する範囲に配置される育成領域と、該育成領域に干潟側開口が設置され、前記壁体の他面側に位置する前記汽水湖の湖底に湖底側開口が配置される通水管と、を備える。【選択図】図２
SHORT-NECK CLAM FISHING GROUND
アサリ漁場
OSHIMA YOSHINORI (author) / NISHIKAWA NAOHITO (author) / ONISHI KENJI (author)
2018-12-27
Patent
Electronic Resource
Japanese
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