| 1. | Freshwater pearl mussel, salmon and brown trout are found in the river.
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| 2. | The river is also the only habitat in Denmark of the freshwater pearl mussel.
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| 3. | The near-natural heath streams of the �rtze, Weesener Bach, Aschau, trout and freshwater pearl mussels.
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| 4. | But the American freshwater pearl mussel plays its part.
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| 5. | Notable Irish species include the freshwater pearl mussel, diving bell spider, White Prominent moth, and Roesel's bush-cricket.
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| 6. | The common name " mussel " is also used for many freshwater bivalves, including the freshwater pearl mussels.
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| 7. | ""'Margaritifera " "'is a genus of freshwater mussels, aquatic bivalve molluscs in the family Margaritiferidae, the freshwater pearl mussels.
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| 8. | The molluscs which produce these pearls are called freshwater pearl mussels ( scientific name " Margaritifera margaritifera " ).
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| 9. | In 1911 the rivers abounded with salmon and trout, and the pearl mussel occurs in the Ythan and Don.
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| 10. | Among the invertebrates, Brittany is notably home to the escargot de Quimper, the freshwater pearl mussel and the white-clawed crayfish.
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