 For two years, from one vessel to another, she observed the French fishermen along the coast and Saharan Africa discovering fish species unknown in France.She published many scientific reports on the negative effects of industrial fishing and the different problems related to fishing practices.From 1943 and approximately for 10 years, she studied in the Mauritian islands, Senegal, Guinea and Ivory Coast, the nature of the seabed, different fish species and their nutritional values in regards of protein deficiency for the local populations.