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 | |
| Format | Journal Article |
| Language | Chinese |
| 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 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 2095-0780 |
| DOI | 10.3969/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。 |
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| 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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| Author_FL | YUAN Huarong QIN Chuanxin CHEN Pimao WANG Yunxiang ZHOU Wenli LI Zheng |
| Author_FL_xml | – sequence: 1 fullname: WANG Yunxiang – sequence: 2 fullname: LI Zheng – sequence: 3 fullname: QIN Chuanxin – sequence: 4 fullname: CHEN Pimao – sequence: 5 fullname: YUAN Huarong – sequence: 6 fullname: ZHOU Wenli |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DOI | 10.3969/j.issn.2095-0780.2016.02.003 |
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| DocumentTitleAlternate | 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 |
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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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| 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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