The structure and distribution of phytoplankton community in the Nanliu River Estuary during spring

Ye Youyin; Xiang Peng; Wang Lei; Yang Yanyan; Wang Yu; Lin Mao; Lan Wenlu

doi:10.3969/j.issn.0253-4193.2017.10.010

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Ye Youyin, Xiang Peng, Wang Lei, Yang Yanyan, Wang Yu, Lin Mao, Lan Wenlu. The structure and distribution of phytoplankton community in the Nanliu River Estuary during spring[J]. Haiyang Xuebao, 2017, 39(10): 111-123. doi: 10.3969/j.issn.0253-4193.2017.10.010

Citation:

Ye Youyin, Xiang Peng, Wang Lei, Yang Yanyan, Wang Yu, Lin Mao, Lan Wenlu. The structure and distribution of phytoplankton community in the Nanliu River Estuary during spring[J]. Haiyang Xuebao, 2017, 39(10): 111-123. doi: 10.3969/j.issn.0253-4193.2017.10.010

Citation:

Ye Youyin, Xiang Peng, Wang Lei, Yang Yanyan, Wang Yu, Lin Mao, Lan Wenlu. The structure and distribution of phytoplankton community in the Nanliu River Estuary during spring[J]. Haiyang Xuebao, 2017, 39(10): 111-123. doi: 10.3969/j.issn.0253-4193.2017.10.010

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The structure and distribution of phytoplankton community in the Nanliu River Estuary during spring

doi: 10.3969/j.issn.0253-4193.2017.10.010

1.
Third institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2.
Marine Environmental Monitoring Center of Guangxi, Beihai 536000, China

Received Date: 2017-04-26
Rev Recd Date: 2017-08-04

Abstract

Abstract

The composition and distribution of phytoplankton community were investigated during spring in 2016. Phytoplankton samples were analyzed by RP-HPLC combined with DAD (diode array detector) to determine photosynthetic pigments composition in the study area. Pigments data were converted into phytoplankton composition by software CHEMTAX based on least square method and steepest descent algorithm. Our results showed that chlorophyll b(Chl b), fucoxanthin were the major pigments in the Nanliu River Estuary. Cryptomonas dominated in the phytoplankton community, contributing to 54.95% of the phytoplankton biomass during spring in the Nanliu River Estuary, followed by chlorophytes and diatoms with 23.36% and 17.37%, respectively. The rest of other phytoplankton was rare, which only took less than 10% of all phytoplankton biomass. There were vary greatly in the composition of phytoplankton community between eastern and western branch of Nanliu River. In eastern branch, the nitrate of was lower than western, and cryptomonas dominated in the phytoplankton community, followed by chlorophytes and diatoms, nitrate was the main influence factors to the composition and distribution of phytoplankton community. In western branch, the proportion of chlorophytes and diatoms increased, non-nitrate factor was the main influence factors to the phytoplankton community. Except nitrate, the western phytoplankton community also influenced by turbidity and salinity. The results indicate that turbidity significant influence the structure and function of ecological system.
- photosynthetic pigments,
- phytoplankton,
- community structure,
- Nanliu River

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