南方农业学报2013，Vol.44Issue(7)：1205-1209,5.DOI:10.3969/j:issn.2095-1191.2013.7.1205
钦州茅尾海沙井采苗区牡蛎幼虫数量变动的调查分析
Quantity dynamic of oyster larvae in Shajing, Maowei Sea of Qinzhou Gulf
摘要
Abstract
[Objective]The present study was conducted to learn the oyster larvae quantity dynamic in Shajing,Maowei Sea of Qinzhou Gulf in order to improve the effect of oysters collecting.[Method]The gonad maturity was identified and the oyster larvae quantity was calculated in Shajing,Maowei Sea of Qinzhou Gulf while the data of water temperature,salinity,pH and the weather condition were collected.[Result]The results showed that one breeding peak of mature oysters in Shajing was observed from 25 June to 3 July in 2011 when the water temperature (down 3.0℃),salinity and pH (down 0.97) of seawater (down 4.0‰-8.0‰) decreased sharply.Five hatching peaks appeared on 21 May,17 June,1 July,12 July and 18 July,respectively.The oyster larvae quantity of the above dates was 2.87×104,2.13×104,1.94×104,11.94×104 and 1.69×104/m3,respectively.Oyster larva preferred to gather in the depth of 0.5 m than 2.0 m.The larva quantity dynamic was affected by the quantity of mature oysters,its hatch time and hatch quantity as well as the tide and ocean current.[Conclusion]The oyster larvae quantity dynamic in Maowei Sea is directly related to the gonadal maturity of mature oysters and the environmental factor in sea area.关键词
牡蛎/性腺成熟度/幼虫数量/水温/盐度/pH/钦州茅尾海沙井采苗区Key words
oyster/ gonad maturity/ number of oyster larvae / water temperature / salinity/ pH / Maowei Sea分类
农业科技引用本文复制引用
钟方杰,黄黎明,杨芳,罗帮,李琼珍,李文红..钦州茅尾海沙井采苗区牡蛎幼虫数量变动的调查分析[J].南方农业学报,2013,44(7):1205-1209,5.基金项目
现代农业产业技术体系建设专项项目(CARS-48) （CARS-48）
广西自然科学基金项目(桂科基0991010) （桂科基0991010）
