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Profiles of hemolymph antioxidant system in apparently healthy marine bivalve, Perna viridis (Linnaeus, 1758) residing in a normoxic coastal ecosystem

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Relation http://eprints.cmfri.org.in/15354/
https://www.sciencedirect.com/science/article/abs/pii/S0272771421004480?via%3Dihub
https://doi.org/10.1016/j.ecss.2021.107599
 
Title Profiles of hemolymph antioxidant system in apparently healthy marine
bivalve, Perna viridis (Linnaeus, 1758) residing in a normoxic
coastal ecosystem
 
Creator Neethu, B R
Reshma, K J
Sumithra, T G
Akhitha, M B
Amala, P V
Ratheesh Kumar, R
Soni, K B
Sanil, N K
 
Subject Bivalves
Molluscan Fisheries
Marine Ecosystems
 
Description Dynamic interactions existing between antioxidant systems (AOS) and residing environment of marine bivalves
makes practical relevance in assessing AOS of these animals for ecodiagnostics of residing water and culture
practices. Among marine bivalves, Perna viridis act as an ideal aquaculture candidate and plays a pivotal role in
ecomonitoring studies. Therefore, the present study was targeted to understand the responses of AOS in hae�molymph of P. viridis based on their residing environmental characteristics (salinity, temperature, pH and dis�solved oxygen[DO]) in a normoxic coastal environment. Results showed that profiles of all studied AOS
components namely, GSH (reduced glutathione) level, GPx (glutathione peroxidase) activity and SOD (super�oxide dismutase) activity, were highly influenced by inhabiting conditions, and synchronised action of these AOS
maintained comparatively stable levels of oxidative metabolism in haemolymph of P. viridis. However, a uniform
correlation between the studied components could not be observed, suggesting variations of AOS levels in natural
ecosystem could not be attributed to single environmental factor. Accordingly, linear mixed model analysis
combining predicted and unknown influences was carried out and the results indicated that GSH levels have the
potential to be used as an early biomarker in P. viridis for fluctuations in DO levels of residing environment,
within normoxic conditions. In short, results of present research fetch its application in domestication, culture
practices, climate change research and biomonitoring studies.
 
Publisher Elsevier
 
Date 2021
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/15354/1/Estuarine%2C%20Coastal%20and%20Shelf%20Science_2021_Neethu%2C%20B%20R%2C%20et%20al..pdf
Neethu, B R and Reshma, K J and Sumithra, T G and Akhitha, M B and Amala, P V and Ratheesh Kumar, R and Soni, K B and Sanil, N K (2021) Profiles of hemolymph antioxidant system in apparently healthy marine bivalve, Perna viridis (Linnaeus, 1758) residing in a normoxic coastal ecosystem. Estuarine, Coastal and Shelf Science, 262. pp. 1-8.