Temporal and spatial distribution of red tide outbreaks in the Yangtze River Estuary and adjacent waters, China
| Autor: | Jing-Liang Tang, Kuixuan Lin, Juan Zhou, Binghui Zheng, Wenqian Cai, Lu-San Liu |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
geography
China geography.geographical_feature_category Water Movements Red tide Harmful Algal Bloom Outbreak Estuary Aquatic Science Plankton Oceanography Spatial distribution Pollution Algal bloom Spatio-Temporal Analysis Rivers Phytoplankton Dinoflagellida Geographic Information Systems Estuaries Environmental Monitoring |
| Zdroj: | Marine pollution bulletin. 72(1) |
| ISSN: | 1879-3363 |
| Popis: | Between 1972 and 2009, evidence of red tide outbreaks in the Yangtze River Estuary and adjacent waters was collected. A geographic information system (GIS) was used to analyze the temporal and spatial distribution of these red tides, and it was subsequently used to map the distribution of these events. The results show that the following findings. (1) There were three red tide-prone areas: outside the Yangtze River Estuary and the eastern coast of Sheshan, the Huaniaoshan-Shengshan-Gouqi waters, and the Zhoushan areas and eastern coast of Zhujiajian. In these areas, red tides occurred 174 total times, 25 of which were larger than 1000 km(2) in areal extent. After 2000, the frequency of red tide outbreaks increased significantly. (2) During the months of May and June, the red tide occurrence in these areas was 51% and 20%, respectively. (3) Outbreaks of the dominant red tide plankton species Prorocentrum dong-haiense, Skeletonema costatum, Prorocentrum dantatum, and Noctiluca scientillan occurred 38, 35, 15, and 10 times, respectively, during the study interval. |
| Databáze: | OpenAIRE |
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