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introduction of aquatic species
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introduction of aquatic species
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水产引种
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introduction of aquatic species
水产引种
广义的水产引种指把外地或国外的新水产物种、新品种或品系,以及研究用的遗传材料引入当地。狭义的水产引种指生产性引种,即引入能供生产上推广养殖的优良品种。
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