期刊
MARINE POLLUTION BULLETIN
卷 175, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2022.113328
关键词
Green tide; Micro-propagule; Jinmenghaiwan; Green algae; Nitrate
资金
- National Key Research and Development Program of China [2019YFC1407902]
- Qingdao Postdoctoral Applied Research Project of China [QDBSH202001]
This study investigated the distribution of micro-propagules of green algae and associated environmental factors in the coastal waters of Qinhuangdao. The results showed that the concentration of NO3-N was the most important factor influencing the abundance of micro-propagules. Additionally, the number of micro-propagules was positively correlated with the biomass of attached and floating macroalgae.
Since 2015, green tides have impacted the coastal waters of Qinhuangdao, particularly at Jinmenghaiwan bath. Micro-propagules are considered the seed bank of algal blooms and play an important role in the formation of green tides. To investigate the spatial and temporal distributions of micro-propagules of green algae and associated environmental factors, a field survey was carried out in the coastal waters of Jinmenghaiwan, Qinhuangdao, China. The results showed that the NO3-N concentration was the most important impact factor of the abundance of micro-propagules and explained 42.9% of the total variance. Furthermore, the number of micropropagules was significantly and positively correlated with the biomass of attached and floating macroalgae. Therefore, reducing the NO3-N concentration by controlling the NO3-N input from Tang River is expected to be an effective measure to prevent and control green tides in the coastal waters of Qinhuangdao.
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