ORIGINAL RESEARCH
Effects of Concentrated Seawater
on Photosynthetic Pigment Contents
in Porphyra haitanensis
| 1 | Key Laboratory of Cultivation and High-Value Utilization of Marine Organisms in Fujian Province,
Fisheries Research Institute of Fujian, Xiamen, P. R. China |
| 2 | Shenzhen GenProMetab Biotechnology Company Limited, Shenzhen, R. R. China |
CORRESPONDING AUTHOR
Submission date: 2019-05-07
Final revision date: 2019-07-22
Acceptance date: 2019-07-24
Online publication date: 2020-02-06
Publication date: 2020-03-31
Pol. J. Environ. Stud. 2020;29(3):2475–2480
KEYWORDS
TOPICS
ABSTRACT
During the production of desalination plants, concentrated seawater is expelled to local marine
environments, which may lead to hypersaline pollution. This study aimed to investigate the effects of
concentrated seawater on Porphyra haitanensis by exposing P. haitanensis to salinity of 40‰, 36‰ and
30‰ (considered as the control) for 2 h, 6 h, 12 h, 24 h, 48 h and 96 h. The results showed that chlorophyll
a content showed no significant change among different salinities, while carotenoid, phycocyanin
and phycoerythrin contents increased in treatment with 40‰ compared with the control. Carotenoid,
phycocyanin and phycoerythrin can all function as antioxidants, suggesting that hypersaline exposure
might trigger oxidative stress in P. haitanensis. Overall, the present study suggests that hypersaline
pollution caused by desalination plants raises significant ecological risks for local marine environments.
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