Princess Laurentien release sturgeon fishes in Rotterdam

Princess Laurentien of The Netherlands release 3 sturgeon fishes in the Nieuwe Maas river in Rotterdam, The Netherlands, 9 May 2012. The release of the three fishes is a part of the campaign of the WWF to get more sturgeon fishes back in the Dutch rivers. Princess Laurentien learned children from the Wilhelminaschool about the sturgeon fish and made up names for the three fishes in Blijdorp Zoo. Photo: Patrick van Katwijk