
Many fish and crustacean live in these brackish waters; you can see trout, mullet, plaice, sea bass, shrimp, oysters... Other species are only passing, such as salmon, and eel that head for the Sargasso Sea to reproduce in the autumn. These species are an important source of food for the local population. Up to the 20th century, fishing for salmon using boats with square nets suspended on long rods, was authorised. The scarcity of fish has now put a stop to this practice. Migrating salmon can travel thousands of kilometres, braving dangers and overcoming obstacles to feed, and return to their native river to breed without losing their way.