[Qualitative and quantitative variations in carotenoid pigments in the ovary and hepatopancreas of Penaeus schmitti during ovarian maturation].

Carotenoid pigments of Penaeus schmitti were investigated and identified in the ovaries and hepatopancreas. Their individual variations were measured in these two organs. The relative concentrations of zeaxanthin in hepatopancreas and astaxanthin in ovaries increased during the sexual development.

Controlled marine ecosystems in the investigation of oil biodegradation at sea.

In the marine environment, petroleum is subject to the action of physico-chemical weathering and microbial biodegradation. Experimental controlled ecosystems have provided essential information about the fate of petroleum at sea.