eCite Digital Repository

Effect of seawater pH on selected blood biochemical parameters of juvenile turbot Scophthalmus maximus (Linnaeus, 1758)


Wang, S and Jiang, Z and Mousavi, SE, Effect of seawater pH on selected blood biochemical parameters of juvenile turbot Scophthalmus maximus (Linnaeus, 1758), Indian Journal of Fisheries, 66, (4) pp. 78-83. ISSN 0970-6011 (2019) [Refereed Article]

Restricted - Request a copy

Copyright Statement

Copyright 2019 Indian Council of Agricultural Research

Official URL:

DOI: doi:10.21077/ijf.2019.66.4.92173-10


The effect of seawater pH on blood physiology in juvenile turbot Scophthalmus maximus (Linnaeus, 1758) reared in recirculating aquaculture systems (RAS) was examined. S. maximus (19.890.25 g) were exposed to six pH levels at 6.30.2, 6.80.2, 7.30.2, 7.80.2, 8.30.2 and 8.80.2. Haemoglobin content (HBC) at acidic conditions was higher compared to that under alkaline conditions. The frequency of total nuclear anomalies (FTNA) was high at pH levels below 7.3 or above 8.3. The relationship between FTNA and pH was well described using a quadratic equation. Alkaline phosphatase activity was significantly declined at pH above 8.3, while total superoxide dismutase activity (T-SOD) remained virtually unchanged among all treatments. This study demonstrated that HBC and FTNA can be used as reliable biomarkers to evaluate the effect of pH in aquatic ectotherms from physiological standpoints. Our findings suggest that environmental pH in RAS ranging from 6.8 to 7.8 is appropriate for juvenile turbot aquaculture.

Item Details

Item Type:Refereed Article
Keywords:biomarkers, blood physiology, pH, recirculating aquaculture systems, Scophthalmus maximus
Research Division:Biological Sciences
Research Group:Zoology
Research Field:Animal physiology - cell
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the biological sciences
UTAS Author:Mousavi, SE (Dr Seyed Ehsan Mousavi)
ID Code:139603
Year Published:2019
Web of Science® Times Cited:2
Deposited By:Fisheries and Aquaculture
Deposited On:2020-06-23
Last Modified:2020-10-09

Repository Staff Only: item control page