Ecological assessment of phytoplankton community via microscopic method and 18S rRNA gene sequencing in Pearl River EstuaryBo Peng, Yuannan Wang, Hengjun Zhang, Chen Chen, Hailin Luo and Min WangE3S Web Conf., 131 (2019) 01043DOI: https://doi.org/10.1051/e3sconf/201913101043