干旱区生态环境知识资源中心(Arid): Antiscalants used in the desalination industry impact the physiology of the coral Montipora capricornis

Arid

DOI	10.1016/j.watres.2022.119411
	Antiscalants used in the desalination industry impact the physiology of the coral Montipora capricornis
	Marques, Joseane A.; Bar-Zeev, Edo; Gafni, Almog; Adler, Osher; Levy, Oren
通讯作者	Marques, JA ; Bar-Zeev, E
来源期刊	WATER RESEARCH
ISSN	0043-1354
EISSN	1879-2448
出版年	2023
卷号	229
英文摘要	Many coral reefs are found in arid and semi-arid regions that often face severe water scarcity and depend on seawater desalination for freshwater supply. Alongside freshwater production, desalination plants discharge brine waste into the sea. Brine includes various chemicals (e.g., antiscalants) that may harm the coastal environment. Although widely used, little is known about the ecotoxicological effects of antiscalants (AS) on hard corals. This study compared the impacts of polyphosphonate-based and polymer-based ASs on the coral Montipora capricornis. After two weeks of exposure, we determined the effects of AS on coral physiology, symbiotic microalgae, and associated bacteria, using various analytical approaches such as optical coherence tomography, pulse amplitude modulated fluorometry, and oxidative stress biomarkers. Both ASs reduced polyp activity (-25%) and caused tissue damage (30% and 41% for polymer and polyphosphonate based AS, respectively). In addition, exposure to polyphosphonate-based AS decreased the abundance of endosymbiotic algae (39%) and upregulated the antioxidant capacity of the animal host (45%). The microalgal symbionts were under oxidative stress, with increased levels of antioxidant capacity and oxidative damage (a 2-fold increase compared to the control). Interestingly, exposure to AS enhanced the numbers of associated bacteria (-40% compared to the control seawater) regardless of the AS type. Our results introduce new insights into the effects of brine on the physiology of hard corals, highlighting that choosing AS type must be examined according to the receiving ecosystem.
英文关键词	SWRO desalination Antiscalants Ecotoxicology Hard coral Oxidative stress
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000904410300003
WOS关键词	STYLOPHORA-PISTILLATA ; NUTRIENT ENRICHMENT ; OXIDATIVE STRESS ; RED-SEA ; REEF ; BRINE ; WATER ; GULF ; LIMITATION ; CHEMISTRY
WOS类目	Engineering, Environmental ; Environmental Sciences ; Water Resources
WOS研究方向	Engineering ; Environmental Sciences & Ecology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/399122
推荐引用方式 GB/T 7714	Marques, Joseane A.,Bar-Zeev, Edo,Gafni, Almog,et al. Antiscalants used in the desalination industry impact the physiology of the coral Montipora capricornis[J],2023,229.
APA	Marques, Joseane A.,Bar-Zeev, Edo,Gafni, Almog,Adler, Osher,&Levy, Oren.(2023).Antiscalants used in the desalination industry impact the physiology of the coral Montipora capricornis.WATER RESEARCH,229.
MLA	Marques, Joseane A.,et al."Antiscalants used in the desalination industry impact the physiology of the coral Montipora capricornis".WATER RESEARCH 229(2023).