ABSTRACT
Different kinds of low molecular weight antioxidants are present in aquatic organisms. They play an important role in their adaptation to the changing environment, including biotic, abiotic, and anthropogenic factors. They participate both in the antioxidant defense against ROS and play a role in many physiological functions of the aquatic organisms, namely reproduction, growth, development. Additionally, the content and composition of antioxidants of marine species are very important for people consumption. Fish, crustacean, mollusk tissues are rich in the antioxidants; therefore, they are the main sources of these essential compounds for people diet. The current study aimed to compare the low molecular weight antioxidants diversity in aquatic organisms and to determine the effects of environmental changes on antioxidant status of the different species, their response on these changes and the role of antioxidants in the adaptation related to harmful environmental conditions. This study will provide to establish a link between the global and local harmful factors of the marine environment and the role of antioxidants in marine animals response.
