底物中钙赋存形态对太平洋牡蛎(Crassostrea gigas)幼虫附着的诱导效应

Oceanologia et Limnologia Sinica(2016)

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Abstract
为探讨底物中钙赋存形态对牡蛎幼虫附着的诱导效应,本研究设计3因子随机区组实验,检验实验底物钙含量、钙赋存形态及海水中牡蛎幼虫丰度对实验底物上太平洋牡蛎(Crassostreagigas)稚贝附着效果(密度和壳高)的影响.结果表明,在3个因子中,实验底物钙含量对附着稚贝密度和壳高的影响不显著(P>0.05),而其它2个因子(钙赋存形态和海水中牡蛎幼虫丰度)均显著影响着实验底物上附着牡蛎稚贝的密度和壳高(P<0.05).在相同的牡蛎浮游幼虫丰度下,3种钙形态底物对牡蛎幼虫附着的诱导能力大小顺序为:有机钙>碳酸钙=硫酸钙(P<0.05);壳高的结果却恰恰相反.在同样的钙形态底物中,高牡蛎幼虫丰度下牡蛎稚贝附着量均显著高于低幼虫丰度的处理组(P<0.05).
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Key words
oyster reef,restoration,abundance,shell height,shellfish
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