Mussel numbers in the river Thames have dropped by up to 99 per cent
Populations of native mussels in the river Thames have dropped massively between 1964 and 2020, possibly because of the effects of pollution and invasive species
Landwebs
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Populations of native mussels in the river Thames have dropped massively between 1964 and 2020, possibly because of the effects of pollution and invasive species
