对虾精养池塘碳、氮和异养细菌含量的变化及其相关性研究

文章调查了广东省汕尾市红海湾对虾精养池塘水体中不同形式的碳（C）、氮（N）和异养细菌含量的变化，并分析c和N对异养细菌的影响，以期为养殖过程合理调控水质环境提供理论数据。结果发现，池塘中不同形式的P（C）在养殖前、中期逐渐升高并达到最大值，中、后期缓慢下降趋于稳定，P（N）在养殖前、中期较低，后期升高并达到最大值；异养细菌数在养殖中期的第56天和养殖后期的第98天出现2个高峰，养殖第70天出现低谷。异养细菌数与总无机碳（TIC）和总碳（TC）呈现极显著正相关关系；养殖中、后期异养细菌数与C／N（TOC／TN）呈极显著负相关关系。结果表明，养殖中、后期水体中C（主要是有机碳）成为影响异养细菌繁殖...

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Published in南方水产科学 Vol. 7; no. 5; pp. 24 - 29
Main Author 罗亮 李卓佳 张家松 曹煜成 文国樑 杨莺莺
Format Journal Article
LanguageChinese
Published 大连海洋大学,辽宁大连116023 2011
中国水产科学研究院南海水产研究所,广东广州510300%中国水产科学研究院南海水产研究所,广东广州,510300
Subjects
对虾精细养殖
异养细菌
氮
碳
碳
对虾精细养殖
氮
异养细菌
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ISSN2095-0780
DOI10.3969/j.issn.2095-0780.2011.05.004

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Summary:文章调查了广东省汕尾市红海湾对虾精养池塘水体中不同形式的碳（C）、氮（N）和异养细菌含量的变化，并分析c和N对异养细菌的影响，以期为养殖过程合理调控水质环境提供理论数据。结果发现，池塘中不同形式的P（C）在养殖前、中期逐渐升高并达到最大值，中、后期缓慢下降趋于稳定，P（N）在养殖前、中期较低，后期升高并达到最大值；异养细菌数在养殖中期的第56天和养殖后期的第98天出现2个高峰，养殖第70天出现低谷。异养细菌数与总无机碳（TIC）和总碳（TC）呈现极显著正相关关系；养殖中、后期异养细菌数与C／N（TOC／TN）呈极显著负相关关系。结果表明，养殖中、后期水体中C（主要是有机碳）成为影响异养细菌繁殖的限制性因素，适当添加C源可以促进异养细菌繁殖，吸收转化无机氮，从而达到降低水体中无机氮浓度、提高物质循环利用效率的作用。
Bibliography:We studied the variation in contents of carbon （C） , nitrogen （N） and heterotrophic bacteria in the intensive shrimp ponds in Shanwei Red Bay of Guangdong Province, and analyzed the effects of C and N on heterotrophic bacteria, so as to provide theoretical references for a reasonable regulation for water quality during culture period. The results show that carbon content gradually reaches the maximum during pre- and mid-culture periods but declines to stability in late period; the nitrogen content is relatively low during pre- and mid-culture periods but reaches the maximum in later period ; the content of heterotrophic bacteria peaks in mid-cuhure period for 56 d and later period for 98 d, but reaches the lowest point after 70-day culture. The heterotrophic bacteria show a very significant positive correlation to TIC and TC. In late culture period, the heterotrophic bacteria show a very significant negative correlation to C/N （TOC/TN）. Mainly carbon limits the propagation of heterotrophic bacteria in mid and
ISSN:2095-0780
DOI:10.3969/j.issn.2095-0780.2011.05.004