Fish sensitivity to underwater solar ultraviolet radiation in the Red Sea

Fish sensitivity to underwater solar ultraviolet radiation in the Red Sea

Internship Description

The Red Sea is a tropical sea characterized by very transparent waters where high levels of solar radiation penetrate to considerable depths. Red Sea clear waters imply high solar ultraviolet radiation (UVR) underwater that may threat organisms including fish.

The present study targets the problem of fish when confined in aquaculture cages in the Red Sea that cannot avoid exposition to UVR and may reduce fish growth and survival. We evaluate whether the aquaculture fish species are sensitive to the Red Sea underwater solar radiation levels.

In this project, the student will collaborate in experiments on fish sensitivity to UVR.  Will help to evaluate how UV dosages affect the fish growth; test for lesions in tissues/organs and address different potential molecular, metabolic and physiological stress changes caused by UVR exposure. The student will have the opportunity to hands-on with several histological, molecular and biochemical techniques.  


Participation in UVR exposure experiments in aquaria
 Training in fish tissues processing, histology techniques, microscopy
Molecular, cellular and physiological stress parameters: gene expression analysis, antioxidant enzymes activity, lipid peroxidation assay, DNA damage
Data manipulation and statistical analysis​ 

Faculty Name

Susana Agusti

Field of Study

​Red Sea, fish, aquaculture, ultraviolet radiation, DNA damage, oxidative stress