文章摘要
王美珍.杭州湾南岸滩涂贝类养殖环境中微生物数量分布及其类群[J].水产学报,2005,29(5):
杭州湾南岸滩涂贝类养殖环境中微生物数量分布及其类群
Microorganism population quantitative variation and its distribution in shellfish culture shoal of south bank in Hangzhou Bay
投稿时间:2014-03-10  修订日期:2014-03-10
DOI:
中文关键词: 滩涂 异养细菌 反硝化细菌 氨化细菌 硫化细菌 数量分布
英文关键词: shoal heterotrophic bacteria denitrifying bacteria ammonifying bacteria sulfate-reduction bacteria quantitative distribution
基金项目:浙江省宁波市科技攻关项目,浙江省慈溪市科技攻关项目,浙江省宁波市科技计划
作者单位地址
王美珍 慈溪市水产技术推广中心 慈溪市水产技术推广中心
摘要点击次数: 1377
全文下载次数: 1046
中文摘要:
      研究了杭州湾南岸慈溪滩涂贝类养殖区的微生物在水平、垂直及季节变化的分布规律.结果表明:3个采样区的异养细菌的数量变动在1.62?103~6.62?105cfu?g-1之间,平均值为4.28?104 cfu?g-1,细菌数量在春季和夏季的数量偏低,10月份异养细菌的数量开始上升,并于11月份达到最高,表层高于底层;其中以革兰氏阳性菌比例最高,为主要的优势种,具有陆源性特点.各站位反硝化细菌、氨化细菌和硫酸还原菌的检出率均为100%,都维持在一个较高的水平,整体上数量具有表层高于底层的特点,3种微生物在数量上的季节演替与异养细菌具有类似的结果,均为10-11月达到最大.
英文摘要:
      n the paper, the quantitative variation and distribution of microorganism population in shellfish culture shoal of south bank in Hangzhou Bay was studied, The samples were collected from 3 different sites in Hangzhou Bay. The results indicate that heterotrophic bacteria variation is from 1.62?10^3-6.62?10^5cfu?g^-1, mean 4.28?10^4cfu?g^-1, and there is a low quantity in spring and summer, rising in October and reaching the peak in November in the sample sites. About bacteria populations, dominant species is gram-positive bacteria, which is characterized with an obvious origin from land. Denitrifying bacteria, ammonifying bacteria and sulfate-reduction bacteria all were found in these sites and maintain a high level although there was a difference in quantity between bottom and surface layers in the shoal, surface layer being higher than bottom.
HTML   查看全文   下载PDF阅读器
关闭

手机扫一扫看