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enhancement of fishery resources
释义
enhancement of fishery resources
Encyclopedia
农学
渔业资源增殖
释
enhancement of fishery resources
渔业资源增殖
用人工方法直接向海洋、滩涂、江河、湖泊、水库等天然水域投放或移入渔业生物的卵子、幼体或成体,以恢复或增加种群数量,改善和优化水域群落结构的措施。广义的还应该包括改善水域的生态环境,向特定水域投放某些装置(如附卵器、人工鱼礁等)及野生种群的繁殖保护等间接增加水域种群资源量的措施。
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hydrographic survey equipment
hydrographic survey in ancient China
hydrographic surveying and charting equipment
hydrographic survey ship
hydrography
hydrography and cartography
hydrohematite
hydroinformatics
hydroiodination
hydroisopleth
hydro-junction
hydrokinetics
hydrolase
hydrolase; hydrolytic enzyme
hydrolocation
hydrolocator
hydrological cableway flow system equipment
hydrological cycle
hydrological data series
hydrological data series for water conservancy planning
hydrological data transmission
hydrological drought
hydrological effect
hydrological effect of agricultural measures
hydrological effect of forest
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