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Topic: fish population decline

Decline in native fish species — Invasive species on the increase

The majority of Bavaria's watercourses are in poor ecological condition. A team from the Technical University of Munich (TUM) has now conducted the first...

A little water could make a big difference for endangered salmon

Even small amounts of running water--less than a gallon per second--could mean the difference between life or death for juvenile coho salmon in coastal...

Walleye fish populations are in decline

Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a study published this...