东海原甲藻藻华和台湾暖流种源关系的进一步研究

doi:10.3969/j.issn.1001-909X.2020.02.005

摘要/Abstract

摘要： 近20 a来,东海近岸海域频繁爆发了大规模的东海原甲藻藻华,造成了该海域生态系统的严重失衡。2013年前的调查研究显示东海原甲藻藻华发源于台湾暖流锋面,随台湾暖流锋面入侵近海而发展扩大,但受调查范围限制未能明确该藻华最早发生位置。本研究往南扩展了调查断面,于2013年春、夏季,在24°N～30°N海域进行了4次大面调查。结果显示东海原甲藻藻华最早发生于台湾海峡北端,且随台湾暖流锋面推进向北及近岸扩展。这不仅再次证实了台湾暖流锋面为东海原甲藻藻华的发生提供种源,而且明确了在东海区域东海原甲藻藻华最初发生的位置。这为该藻华的监控提供了重要的科学依据,为其他类似藻华的发生、发展提供了参考。

关键词: 东海原甲藻, 台湾暖流, 种源, 藻华

Abstract: In the past two decades, large scale blooms Prorocentrum donghaiense Lu (P. donghaiense) have frequently occurred in the coastal water of the East China Sea (ECS). Previous studies have shown that P. donghaiense blooms in the ECS originated from the front of Taiwan Warm Current (TWC) and expanded with its invading inshore. However, little is known about the location where the P. donghaiense blooms firstly occur, as it is limited by the investigation section of previous studies. In this research, four surveys in the East China Sea (24 °N-30 °N) in spring and summer of 2013 were conducted. Results clearly showed that P. donghaiense blooms occurred firstly at the northern end of the Taiwan Strait and spread northward and inshore with the invading of the front of TWC. It was not only confirmed again that the TWC played a seed bank role for P. donghaiense blooms in the ECS, but also confirmed the location where P. donghaiense blooms firstly occurred in the ECS. This research was useful to monitor P. donghaiense blooms and similar algal blooms.

Key words: Prorocentrum donghaiense Lu, the Taiwan Warm Current, seed bank, blooms

中图分类号:

Q948.8

曾宇兰, 陆斗定, 王鹏斌, 郭若玉, 管卫兵, 戴鑫烽. 东海原甲藻藻华和台湾暖流种源关系的进一步研究[J]. 海洋学研究, 2020, 38(2): 38-48.

ZENG Yulan, LU Douding, WANG Pengbin, GUO Ruoyu, GUAN Weibing, DAI Xinfeng. Advanced researches on the relationship betweenProrocentrum donghaiense Lu blooms andthe Taiwan Warm Current[J]. Journal of Marine Sciences, 2020, 38(2): 38-48.

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