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Integrative Biology of Marine Organisms
UMR 7232

For fish, as in all living beings, environmental adaptation and survival involve the coordination of complex functions in harmony with the environment cues and changes. Sense organs inform the organism of visual, thermal, auditory, olfactory, gustatory, tactile signals. In addition to perceiving their immediate environment, they must also manage daily and seasonal cycles. It is vital that their metabolism, physiology and behavior remain in harmony with the natural variations in illumination, temperature, tides, etc… because this ensures optimum survival. This allows a predator to hunt at the best time of day, or births to take place at the most appropriate time of the year.

 Our research team aims to better understand the modes of action of light and temperature on the neuroendocrine regulation of fish. We use a range of biological tools at the intersection of metabolism, physiology, endocrinology, ecology and behavioral sciences to study farmed or wild fish species representative of tropical, temperate and polar environments. Some of our biological model species include: Danio rerio, Chimaera monstrosa, Dicentrarchus labrax, Lampetra marinus, Oncorhynchus mykiss, Salmo salar, Salvelinus alpinus, Scyliorhinus canicula and Thunnus thynnus.

 Finally, understanding the basic mechanisms of adaptation to the environment is not confined to academic research. They also are means to provide tools for the rational and sustainable management of natural resources or aquaculture purposes. Our approach can provide appropriate and relevant biological indicators to anticipate what the reactions of different species will be and their actual adaptive potential to global change.