Der Perlentaucher unter den Buchläden Eichendorff21

**Philippe Goulletquer,** PhD in biological oceanography, is in charge of issues of marine and coastal biodiversity at Ifremer. He is a member of the scientific council on Natural heritage & biodiversity. **Philippe Gros** , a highly qualified professor of biological sciences at the École normale supérieure, joined Ifremer in 1984. He was director of Living resources there. **Gilles Boeuf,** holding a PhD in developmental biology, is a professor at Pierre & Marie Curie university and President of the National museum of natural history (MNHN) _._ **Jacques Weber,** an economist and anthropologist, research director at the Cirad, lecturer at the École des hautes études and Pierre & Marie Curie university, is vice-chairman of the French committee for Man and biosphere.