不同季节江蓠脱落物对大型海藻场上覆水的影响

通过在实验室模拟野外环境,研究了不同季节温度下江蓠(Gracilaria confervoides)腐烂对上覆水溶解氧(DO)和营养盐浓度的影响。根据广东沿海气候特点设计春秋20℃、夏28℃、冬15℃3个对照组,海水平均流速为0.24 m·s-1。结果表明,随着温度升高DO逐渐下降,DO浓度与加入江蓠质量呈负相关关系;江蓠腐烂分解使上覆水总氮(TN)、总磷(TP)浓度先增后减,钱态氮(NH4-N)与亚硝态氮(NO2-N)、硝态氮(NO3-N)浓度同步出现峰值,磷(P)元素的释放早于氮(N)元素;冬季(15℃)和春秋季(20℃)时,NO4-N和NO3-N浓度均随江蓠丰度的增加而增大,夏季(28...

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Published in南方水产科学 Vol. 12; no. 2; pp. 13 - 20
Main Author 王云祥 李正 秦传新 陈丕茂 袁华荣 周文礼
Format Journal Article
LanguageChinese
Published 中国水产科学研究院南海水产研究所,农业部南海渔业资源环境科学观测实验站,中国水产科学研究院海洋牧场技术重点实验室,广东广州510300%中国水产科学研究院南海水产研究所,农业部南海渔业资源环境科学观测实验站,中国水产科学研究院海洋牧场技术重点实验室,广东广州510300%天津农学院水产科学系,天津,300384 2016
天津农学院水产科学系,天津300384
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ISSN2095-0780
DOI10.3969/j.issn.2095-0780.2016.02.003

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Abstract 通过在实验室模拟野外环境,研究了不同季节温度下江蓠(Gracilaria confervoides)腐烂对上覆水溶解氧(DO)和营养盐浓度的影响。根据广东沿海气候特点设计春秋20℃、夏28℃、冬15℃3个对照组,海水平均流速为0.24 m·s-1。结果表明,随着温度升高DO逐渐下降,DO浓度与加入江蓠质量呈负相关关系;江蓠腐烂分解使上覆水总氮(TN)、总磷(TP)浓度先增后减,钱态氮(NH4-N)与亚硝态氮(NO2-N)、硝态氮(NO3-N)浓度同步出现峰值,磷(P)元素的释放早于氮(N)元素;冬季(15℃)和春秋季(20℃)时,NO4-N和NO3-N浓度均随江蓠丰度的增加而增大,夏季(28 ℃)则相反,海藻加入的质量同时影响NH4-N、NO2-N、NO3-N和活性磷(POi4P)的峰值浓度,海藻质量与营养盐浓度呈正相关;低温条件下N、P元素营养盐浓度在上覆水中累积均超过高温条件。研究大型海藻脱落物在不同季节里水解后对上覆水的影响,可为大型海藻增殖密度的确定提供理论依据。
AbstractList 通过在实验室模拟野外环境,研究了不同季节温度下江蓠(Gracilaria confervoides)腐烂对上覆水溶解氧(DO)和营养盐浓度的影响。根据广东沿海气候特点设计春秋20℃、夏28℃、冬15℃3个对照组,海水平均流速为0.24 m·s-1。结果表明,随着温度升高DO逐渐下降,DO浓度与加入江蓠质量呈负相关关系;江蓠腐烂分解使上覆水总氮(TN)、总磷(TP)浓度先增后减,钱态氮(NH4-N)与亚硝态氮(NO2-N)、硝态氮(NO3-N)浓度同步出现峰值,磷(P)元素的释放早于氮(N)元素;冬季(15℃)和春秋季(20℃)时,NO4-N和NO3-N浓度均随江蓠丰度的增加而增大,夏季(28 ℃)则相反,海藻加入的质量同时影响NH4-N、NO2-N、NO3-N和活性磷(POi4P)的峰值浓度,海藻质量与营养盐浓度呈正相关;低温条件下N、P元素营养盐浓度在上覆水中累积均超过高温条件。研究大型海藻脱落物在不同季节里水解后对上覆水的影响,可为大型海藻增殖密度的确定提供理论依据。
S932.7; 通过在实验室模拟野外环境,研究了不同季节温度下江蓠(Gracilaria confervoides)腐烂对上覆水溶解氧(DO)和营养盐浓度的影响.根据广东沿海气候特点设计春秋20 ℃、夏28℃、冬15℃3个对照组,海水平均流速为0.24 m·s-1.结果表明,随着温度升高DO逐渐下降,DO浓度与加入江蓠质量呈负相关关系;江蓠腐烂分解使上覆水总氮(TN)、总磷(TP)浓度先增后减,铵态氮(NH4+-N)与亚硝态氮(NO2--N)、硝态氮(NO3--N)浓度同步出现峰值,磷(P)元素的释放早于氮(N)元素;冬季(15℃)和春秋季(20℃)时,NO2--N和NO3--N浓度均随江蓠丰度的增加而增大,夏季(28℃)则相反,海藻加入的质量同时影响NH4+-N、N02--N、N03--N和活性磷(PO43--P)的峰值浓度,海藻质量与营养盐浓度呈正相关;低温条件下N、P元素营养盐浓度在上覆水中累积均超过高温条件.研究大型海藻脱落物在不同季节里水解后对上覆水的影响,可为大型海藻增殖密度的确定提供理论依据.
Author 王云祥 李正 秦传新 陈丕茂 袁华荣 周文礼
AuthorAffiliation 天津农学院水产科学系,天津300384 中国水产科学研究院南海水产研究所,农业部南海渔业资源环境科学观测实验站,中国水产科学研究院海洋牧场技术重点实验室,广东广州510300
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QIN Chuanxin
CHEN Pimao
WANG Yunxiang
ZHOU Wenli
LI Zheng
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DocumentTitleAlternate Effect of Gracilaria confervoides after falling off on overlying water of seaweed field in different seasons
DocumentTitle_FL Effect of Gracilaria confervoides after falling off on overlying water of seaweed field in different seasons
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Keywords 营养盐
seaweeds abundance
nutritive
海藻丰度
seaweed field
江蓠
海藻场
Gracilaria confervoides
上覆水
overlying water
Language Chinese
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Notes WANG Yunxiang, LI Zheng, QIN Chuanxin, CHEN Pimao, YUAN Huarong, ZHOU Wenli (1. Department of Fishery Sciences, Tianjin Agricultural University, Tianjin 300384, China; 2. Scientific Observing and Experimental Station of South China Sea Fishery Resources and Environment, Ministry of Agriculture; Key Lab. of Marine Ranching Technology, Chinese Academy of Fishery Sciences; South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China)
44-1683/S
In laboratory simulated environment, we studied the seasonal impacts of the decomposition of Gracilaria confervoides in Daya Bay on the nutrient concentrations and dissolved oxygen in overlying water. According the climate of Guangdong coast, three con- trol groups were designed: spring and autumn in 20 ℃, summer in 28 ℃, winter in 15 ℃, and the average sea water flow rate was 0. 24 m·s-1. The results show that dissolved oxygen (DO) decreased gradually with increasing temperature, and DO was negatively correlated to the biomass o
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  text: 2016
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PublicationTitle 南方水产科学
PublicationTitleAlternate South China Fisheries Science
PublicationTitle_FL South China Fisheries Science
PublicationYear 2016
Publisher 中国水产科学研究院南海水产研究所,农业部南海渔业资源环境科学观测实验站,中国水产科学研究院海洋牧场技术重点实验室,广东广州510300%中国水产科学研究院南海水产研究所,农业部南海渔业资源环境科学观测实验站,中国水产科学研究院海洋牧场技术重点实验室,广东广州510300%天津农学院水产科学系,天津,300384
天津农学院水产科学系,天津300384
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Snippet 通过在实验室模拟野外环境,研究了不同季节温度下江蓠(Gracilaria confervoides)腐烂对上覆水溶解氧(DO)和营养盐浓度的影响。根据广东沿海气候特点设计春秋20℃、夏28℃、...
S932.7; 通过在实验室模拟野外环境,研究了不同季节温度下江蓠(Gracilaria confervoides)腐烂对上覆水溶解氧(DO)和营养盐浓度的影响.根据广东沿海气候特点设计春秋20 ℃、...
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SubjectTerms 上覆水
江蓠
海藻丰度
海藻场
营养盐
Title 不同季节江蓠脱落物对大型海藻场上覆水的影响
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