In Search of Red Noctiluca scintillans Blooms in the East China Sea

In Search of Red Noctiluca scintillans Blooms in the East China Sea
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寻找东海绽放的红色夜光藻

DOI:
10.1029/2019gl082667
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发表时间:
2019-06
影响因子:
5.2
通讯作者:
Chuanmin Hu
Chuanmin Hu
中科院分区:
地球科学1区
文献类型:
--
作者:
Lin Qi;Sheng-Fang Tsai;Yanlong Chen;Chengfeng Le;Chuanmin Hu

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红色夜光藻(RNS)是引起赤潮和生物发光的主要物种之一,但由于其短暂性而极难追踪。在这里,我们展示了 RNS 由于其独特的吸收和散射特性,可以从卫星数据中进行指纹识别。对2000-2017年东海中分辨率成像光谱辐射仪数据的回顾性分析揭示了季节模式和年际变化以及RNS水华增加的趋势,所有这些都是由水文和生物因素驱动的,也可能是由三峡大坝的建设驱动的。与早期实地测量报告不同,RNS 水华在东海沿海和近海水域均发现,温度至少为 126°E(距长江口 > 330 公里)。 RNS 水华也出现在 8 月和 9 月,此时水温为 28-30 °C,远远超出了之前报道的 10-25 °C 范围。
Red Noctiluca scintillans (RNS) is one of the major species causing red tides and bioluminescence, yet extremely difficult to track due to its ephemeral nature. Here, we show that RNS can be fingerprinted from satellite data due to its unique absorption and scattering properties. Retrospective analysis of Moderate Resolution Imaging Spectroradiometer data of 2000–2017 over the East China Sea reveals seasonal patterns and interannual changes as well as an increasing RNS bloom trend, all driven by hydrographical and biological factors and possibly by the construction of the Three Gorges Dam. Unlike earlier reports from field measurements, RNS blooms are found in both coastal and offshore waters of the ECS, to at least 126°E (> 330 km from the Yangtze River mouth). RNS blooms are also found in August and September where water temperature of 28–30 °C is well beyond the earlier reported range of 10–25 °C.
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