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The re-introduction of allis shad (Alosa alosa) in the Rhine System (LIFE-Projekt Maifisch)
Date du début: 1 janv. 2007, Date de fin: 31 déc. 2010,
Background
Allis shad (Alosa alosa) is a herring-like fish species which lives in saltwater, but migrates up European rivers to breed in freshwater. Historically, the eastern Atlantic and North Sea were densely populated with the fish. Only 150 years ago, several hundred thousand Allis shads were caught annually in the Rhine system and they were an import ...
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