Bacterial abundance and production during the unique spring phytoplankton bloom in the central Yellow Sea SCIE SCOPUS

Cited 36 time in WEB OF SCIENCE Cited 38 time in Scopus
Title
Bacterial abundance and production during the unique spring phytoplankton bloom in the central Yellow Sea
Author(s)
Hyun, JH; Kim, KH
KIOST Author(s)
Kim, Kyeong Hong(김경홍)
Publication Year
2003
Abstract
To elucidate the factors responsible for the resulting bacterial properties during the spring phytoplankton bloom in the central Yellow Sea, we investigated bacterial abundance and production together with physico-chemical and biological parameters. In spring, the central Yellow Sea is characterized by the horizontal intrusion of high-temperature and high-salinity Yellow Sea Warm Current (YSWC), which forms a thermohaline front between the central Yellow Sea and cold coastal waters, and by the vertical mixing of high-nutrient Yellow Sea Cold Water (YSCW) over the previous winter. The combination of high nutrient conditions with weak vertical density gradients because of increased irradiance, which increases the residence time of phytoplankton within the euphotic layer, seems to trigger the spring phytoplankton bloom. Enhanced bacterial biomass, production, and turnover rates were observed in the bloom area. Bacterial variables were significantly correlated with chl a concentration, but not with temperature. These results indicated that resource supply from phytoplankton primarily stimulated bacterial growth. Despite the enhanced bacterial growth in the bloom area, abundant heterotrophic nanoflagellates and their grazing on bacteria were responsible for the relatively smaller increase in bacterial biomass in the bloom area. Higher bacterial growth but smaller increases in bacterial biomass indicated that bacterial growth and biomass are independently controlled during the spring bloom in the central Yellow Sea, in which bacterial growth is primarily stimulated by organic material produced from the phytoplankton bloom, but the enhanced biomass is more tightly controlled by grazing.
ISSN
0171-8630
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5602
DOI
10.3354/meps252077
Bibliographic Citation
MARINE ECOLOGY PROGRESS SERIES, v.252, pp.77 - 88, 2003
Publisher
INTER-RESEARCH
Subject
HETEROTROPHIC BACTERIOPLANKTON PRODUCTION; TOP-DOWN CONTROL; EAST CHINA SEA; COASTAL WATERS; FOOD-WEB; SOUTHEASTERN HWANGHAE; ORGANIC-MATTER; SURFACE WATERS; ATLANTIC-OCEAN; TIDAL FRONTS
Keywords
bacterioplankton; Yellow Sea; spring bloom; Yellow Sea Cold Water; YSCW; Yellow Sea Warm Current; YSWC
Type
Article
Language
English
Document Type
Article
Publisher
INTER-RESEARCH
Related Researcher
Research Interests

Seawater Chemistry,Geochemistry,해수화학,지화학

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