THÀNH PHẦN LOÀI VÀ ĐA DẠNG QUẦN XÃ THỰC VẬT PHÙ DU ĐẢO NAM YẾT - QUẦN ĐẢO TRƯỜNG SA, KHÁNH HÒA

Abstract

Phytoplankton data were collected with standard equipment and procedures over the observation period in Nam Yet island from 2013 to 2014. A total of 301 species of phytoplankton were found, they were of 4 phyla, 8 classes, 38 orders, 61 families, 100 genera were identified includes 152 taxa belonging to Dinophyta, 142 to Bacillariophyta, 6 to Cyanobacteria and 1 to Chrysophyta. The species composition structure of Phytoplankton in Nam Yet Island, wrong not much different from the Central and Southern coast of Vietnam. 132 species were additional for phytoplankton of Nam Yet Island, Truong Sa Archipelago, mainly focused on Dinophyta and Bacillariophyta. There are 34 species were newly recorded for marine planktonic communities of the Vietnam. The diversity index (H ') and value of diversity (Dv) for phytoplankton community of Nam Yet island, level of diversity is low (medium and low).