pacifastacusの例文

例文

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1. Recently there have been regular sitings of the invasive signal crayfish, " Pacifastacus leniusculus ", in the brook.
2. The three species commonly imported to Europe from the Americas are " Orconectes limosus ", " Pacifastacus leniusculus " and " Procambarus clarkii ".
3. Like " Pacifastacus leniusculus ", another invasive North American crayfish, " O . limosus " carries crayfish plague and is a threat to native European crayfish.
4. The population of the endangered European freshwater crayfish in the river and its tributaries has practically disappeared owing to the introduction of the North American signal crayfish ( " Pacifastacus leniusculus " ).
5. There are trout in the river, but the population of the endangered European freshwater crayfish in the river has practically disappeared owing to the introduction of the North American signal crayfish ( " Pacifastacus leniusculus " ).