| 徐学锋，刘丽，杨慧荣，全为民.杭州湾大金山岛潮间带近江牡蛎（Crassostreaariakensis）的种群鉴定及分布动态[J].广东农业科学,2013,40(10):131-133 |
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杭州湾大金山岛潮间带近江牡蛎（Crassostreaariakensis）的种群鉴定及分布动态 |
| Population and distribution of Crassostrea ariakensis in the intertidal zone of the Dajinshan island in Hangzhou bay |
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| DOI： |
| 中文关键词: 近江牡蛎 种群 杭州湾 |
| 英文关键词: Crassostrea ariakensis population Hangzhou bay |
| 基金项目:国家科技基础条件平台建设项目（2008DKA30470-010） |
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| 中文摘要: |
| 于2011年5月和9月对杭州湾北岸大金山岛潮间带区牡蛎种群数量开展了生态调查，通过16SrDNA基因序列分析发现，分布于潮间带区的鲜活牡蛎全部为近江牡蛎（Crassostrea ariakensis）；5月近江牡蛎平均密度和生物量分别为941（±106）个/m2和13006（±1509）g/m2，9月近江牡蛎平均密度和生物量分别为821（±69）个/m2和14124（±1470）g/m2，两个月份间近江牡蛎的平均密度和生物量均没有显著性差异；在种群大小频率构成中，以壳高（SH）介于40~45mm的群体最多；5月和9月可收获牡蛎（SH≥0mm）的平均密度分别达到26个/m2和55个/m2。 |
| 英文摘要: |
| The study investigated the abundance of the oyster population in the intertidal zone of Dajinshan island in the Hangzhou bay in May and September, 2011. All live oysters were identified as Suminoe oyster (Crassostrea ariakensis) based on 16S rDNA gene sequence analysis. The mean densities and biomass of the oyster (941依106 ind/m2 and 13 006依1 509 g/m2) in May had no significant differences with the values (821依69 ind/m2 and 14 121依1 470 g/m2) in September. It was found that the individuals with shell height of 40~45 mm dominated the oyster population based the size-frequency distribution. The market-sized oysters (SH逸70 mm) in May and September held the mean densities of 26 ind/m2 and 55 ind/m2, respectively. |
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