The killer shrimp is not as bad as its reputation

At the same time as the invasion of the killer shrimp began in the early 1990s,
At the same time as the invasion of the killer shrimp began in the early 1990s, the populations of many native invertebrates in the large waterways of Central Europe started to decline. (Photo: J. Brandner/ TUM)
Research news

Researchers at the Technical University of Munich (TUM) have discovered that the amphipod crustacean, which is native to the Ponto-Caspian region, is not a true predator and only plays an indirect role in the massive species extinction of small crustaceans in native waters. According to experimental results, the invasive killer shrimp actually only drove native amphipods out of their hiding places, making them easy prey for the round goby, a species which also originates from the Black Sea region.


Their paper, which was published in the scientific journal ’BMC Ecology’, is the first behavioral study worldwide showing the interaction of two invasive species in the context of the decline of native species. ...
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