Can the algicidal material Ca-aminoclay be harmful when applied to a natural ecosystem? An assessment using microcosms SCIE SCOPUS

Cited 9 time in WEB OF SCIENCE Cited 11 time in Scopus
Title
Can the algicidal material Ca-aminoclay be harmful when applied to a natural ecosystem? An assessment using microcosms
Author(s)
Jung, Seung Won; Yun, Suk Min; Yoo, Jae Won; Li, Zhun; Jang, Pung-Guk; Lim, Dhong-I; Lee, Young-Chul; Lee, Hyun Uk; Lee, Taek-Kyun; Heo, Jinbee; Lee, Jin Hwan; Han, Myung-Soo
KIOST Author(s)
Jung, Seung Won(정승원)Jang, Pung Guk(장풍국)Lim, Dhong Il(임동일)Lee, Taek Kyun(이택견)
Publication Year
2015-11-15
Abstract
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.
ISSN
0304-3894
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2372
DOI
10.1016/j.jhazmat.2015.05.012
Bibliographic Citation
JOURNAL OF HAZARDOUS MATERIALS, v.298, pp.178 - 187, 2015
Publisher
ELSEVIER SCIENCE BV
Subject
PSEUDOMONAS-FLUORESCENS HYK0210-SK09; STEPHANODISCUS-HANTZSCHII; BIOLOGICAL-CONTROL; ALGAL BLOOMS; CRUDE-OIL; MARINE; SUCCESSION; ORGANOCLAY; DYNAMICS
Keywords
Algicidal material; Ca-aminoclay; Harmful algal blooms; Microcosm experiments
Type
Article
Language
English
Document Type
Article
Publisher
ELSEVIER SCIENCE BV
Related Researcher
Research Interests

Marine Geochemistry,Paleoceanography,Marine Pollution,해양지화학,고해양학,해양오염학

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