浮游生物
浮游植物
食物网
微生物食品网
营养水平
牡蛎
布鲁姆
环境科学
水华
海洋学
生态学
生态系统
浮游动物
生物
营养物
牡蛎
地质学
作者
Xuguang Huang,Bingyu Liu,Donghui Guo,Yanping Zhong,Shunxing Li,Xin Liu,Edward A. Laws
标识
DOI:10.1016/j.marpolbul.2021.111990
摘要
The hydromedusa Blackfordia virginica is an invasive species that has disrupted coastal marine food webs throughout the world. Here, we report the response of plankton community to B. virginica blooms in a subtropical lagoon in China. Chlorophyll-a concentrations increased after the peak of B. virginica abundance, which was coincident with high concentrations of ammonium. An increase of the biomass and composition of pico- and nano-phytoplankton during the bloom resulted from bottom-up effects due to the nutrients excreted by B. virginica. The average size and grazing rates of microzooplankton concurrently decreased. The negative correlation between the abundances of B. virginica and microzooplankton was accurately simulated by a generalized linear model and redundancy analysis. This study provided empirical evidence of the impacts of the B. virginica bloom on the food web and the mechanisms responsible for those effects. These impacts may lead to serious ecological and environmental consequences for the lagoonal ecosystem.
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