The transformations of our societies confronted with both the liberal globalization of exchanges and the “unification of the symbolic markets” (as Patrick Champagne puts it) raises the problem of identity. The author studies artisanal (small-scale) fishing in Brittany, an activity based on the couple's teamwork, and more especially deep-sea fishing in Cornouaille. The economic and political changes that took place in the past thirty years have destabilized this fishing couple in their definition as a fisherman or -woman and, as a result, have led to a recomposition of the identificatory markers that prevail today.