How widespread is illegal fishing? Albatrosses are helping us with the answer

Wandering albatross equipped with a logger off the coast of the Kerguelen Islands © C. Matheron/TAAF Using albatrosses fitted with loggers, researchers at the CNRS and La Rochelle Université, in association with the Administration des Terres Australes et Antarctiques Françaises, which manages the natural reserves of the French southern and Antarctic lands, have made a first estimation of the number of non-declared fishing boats operating without an identification system in the Southern Ocean: more than a third of the boats the birds detected in international water were non-declared. The results of the Ocean Sentinel project are published in PNAS on 27 January 2020. Albatrosses do not only inspire poets and ancient mariners! Scientists at the Centre d'études biologiques de Chizé (CNRS/La Rochelle Université) 1 made use of these majestic creatures with their huge wingspans to detect fishing boats that do not have an automatic identification system (AIS) in the southern Indian Ocean. These birds' characteristics are very interesting for the scientists' mission; they fly great distances and are particularly attracted by fishing boats. That makes them perfect candidates for the Ocean Sentinel programme, established by researchers in collaboration with teams at the French natural reserve and New Zealand's Sextant Technology. With almost 170 albatrosses equipped with loggers for six months, the Ocean Sentinel project monitored more than 47 million km2 of the Southern Ocean, providing the first estimation of the proportion of non-declared fishing vessels operating in this region.