18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber places young eels in the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of released eels corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels are put into the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of released eels corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber loads his barge with young eels. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of released eels corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels are put into the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber places young eels in the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: A fisherman in Potsdam loads his barge with young eels. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Posdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber places young eels in the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of released eels corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber loads his barge with young eels. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels wriggle in a transport container. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels shall be weighed before being released. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: The seven-year-old Sydney from the Rosa Luxemburg School in Potsdam, together with Jцrg Vogelsдnger (SPD), Brandenburg's Minister of Agriculture, is putting young eels in the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: The seven-year-old Sydney from the Rosa Luxemburg School in Potsdam, together with Jцrg Vogelsдnger (SPD), Brandenburg's Minister of Agriculture, is putting young eels in the Havel. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of released eels corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Students of the Rosa Luxemburg School in Potsdam look at young eels in a sight glass. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of released eels corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Students of the Rosa Luxemburg School in Potsdam look at young eels in a sight glass. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: The seven-year-old Sydney from the Rosa Luxemburg School in Potsdam, together with Jцrg Vogelsдnger (SPD), Brandenburg's Minister of Agriculture, is putting young eels in the Havel. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: The seven-year-old Sydney from the Rosa Luxemburg School in Potsdam, together with Jцrg Vogelsдnger (SPD), Brandenburg's Minister of Agriculture, is putting young eels in the Havel. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels shall be weighed before being released. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels wriggle in a transport container. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels wriggle in a transport container. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber loads his barge with young eels. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber places young eels in the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: A fisherman in Potsdam loads his barge with young eels. As part of a pilot project to promote the European eel population, approximately 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Posdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Lower Saxony, Osnabrueck: One of the first two electric police motorcycles in Germany for the municipal emergency and patrol service stands in front of the Osnabrьck Police Headquarters. Lower Saxony's Interior Minister Pistorius (SPD) hands over the emergency vehicles. Photo: Friso Gentsch/dpa

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber places young eels in the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, around 400,000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Lower Saxony, Osnabrueck: One of the first two electric police motorcycles in Germany for the municipal emergency and patrol service stands in front of the Osnabrьck Police Headquarters. Lower Saxony's Interior Minister Pistorius (SPD) hands over the emergency vehicles. Photo: Friso Gentsch/dpa

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber loads his barge with young eels. As part of a pilot project to promote the European eel population, around 400,000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels are put into the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, around 400,000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels are put into the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, around 400,000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Fischer Mario Weber places young eels in the water at the reed belt of the Havel. As part of a pilot project to promote the European eel population, approx. 40,0000 young eels with an average weight of 4 grams will be released into the Havel and lakes around Potsdam. Photo: Bernd Settnik/dpa-Zentralbild/ZB

18 October 2018, Brandenburg, Potsdam: Young eels wriggle in a transport container. As part of a pilot project to promote the European eel population, approximately 400,000 young eels weighing an average of 4 grams are released into the Havel and lakes around Potsdam (number of eels released corrected). Photo: Bernd Settnik/dpa-Zentralbild/ZB