Lake Constance forms a natural border between Germany, Austria and Switzerland – and its ecosystem is changing. Newly arrived aggressive residents include spiny-cheek crayfish, zebra mussels and killer shrimp. Will they displace native species?
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Lake Constance’s ecosystem is changing, with spiny-cheek crayfish and killer shrimp on the march.
Climate change is heating Mediterranean waters 20% faster than oceans on average worldwide, warns a WWF report. The rising temperatures have been conducive to alien fish and algae invading via the Suez Canal.
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