期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 298, 期 -, 页码 178-187出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2015.05.012
关键词
Algicidal material; Ca-aminoclay; Harmful algal blooms; Microcosm experiments
资金
- Public Welfare & Safety Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning of Korea [PN66020]
- Korea Institute of Ocean Science Technology [PE9931A]
We assessed the ability of an artificial clay (Ca-aminoclay) to suppress harmful algal bloom species (HABs) such as Cochlodinium polykrikoides and Chattonella marina and investigated the ecological responses in the closed and open microcosm systems. The Ca-aminoclay induced rapidly and selectively cell lysis in the HABs. However, applying Ca-aminoclay could cause adverse impacts in terms of biological and environmental changes. The bacterioplankton abundance increased and then, the abundances of heterotrophic nanoflagellates and ciliates increased rapidly. Extremely poor environmental conditions such as increase in nutrients and development of anoxic conditions were sustained continuously in a closed system, while the environmental conditions in open systems deteriorated before recovering to the initial conditions. We evaluated the potential for the occurrence of a bloom of another phytoplankton after HABs had been controlled using the Ca-aminoclay. The Ca-aminoclay controlled blooms of Chattonella marina in mixed cell cultures containing a Tetraselmis chui. However, T. chui increased over time and then bloomed. Therefore, caution should be taken when considering the direct application of Ca-aminoclay in natural environments even though it offers the rapid removal of HABs. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据