Phytoplankton and bacterial communities dynamics along the salinity gradients in the Seomjin river estuary

Title
Phytoplankton and bacterial communities dynamics along the salinity gradients in the Seomjin river estuary
Author(s)
이민지; 백승호
KIOST Author(s)
Lee, Minji(이민지)Baek, Seung Ho(백승호)
Publication Year
2017-02-23
Abstract
We estimated the phytoplankton and bacterial community dynamics along the salinity gradients in the Seomjin River estuary, by investigating the seasonal abiotic and biotic factors at 14 sites at high and low tide during the spring tide season. We performed bioassays to identify the effect of additional nutrients (+N, +P, +NP) on phytoplankton growth and performed high-resolution 16S rRNA tag pyrosequencing to obtain snapshots of the bacterial diversity and community structure along the salinity gradients in spring and autumn. The algal bioassays and the field surveys indicated that nitrogen and phosphates could be limiting factors in the saltwater and freshwater zones in the Seomjin River estuary. The Bacterial diversity was very high at Station 9, where freshwater and saltwater species were mixed. Our study demonstrated dynamic changes in the phytoplankton and bacterial communities along tidal levels and salinity gradients.on. We performed bioassays to identify the effect of additional nutrients (+N, +P, +NP) on phytoplankton growth and performed high-resolution 16S rRNA tag pyrosequencing to obtain snapshots of the bacterial diversity and community structure along the salinity gradients in spring and autumn. The algal bioassays and the field surveys indicated that nitrogen and phosphates could be limiting factors in the saltwater and freshwater zones in the Seomjin River estuary. The Bacterial diversity was very high at Station 9, where freshwater and saltwater species were mixed. Our study demonstrated dynamic changes in the phytoplankton and bacterial communities along tidal levels and salinity gradients.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/24211
Bibliographic Citation
한국환경생물학회, pp.41, 2017
Publisher
한국생태환경과학협의회
Type
Conference
Language
English
Publisher
한국생태환경과학협의회
Related Researcher
Research Interests

Marine Ecology,Marine Environment,Phytoplankton,해양생태,해양환경,식물플랑크톤

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