This flashcard emphasizes that the illegal introduction of the African catfish (Clarias gariepinus) is a threat to indigenous catfishes in our rivers.
此闪卡强调，非法引入非洲鲶鱼（Clarias gariepinus）威胁着我们河流中的本土鲶鱼。
| Text | illegal introduction of African catfish Clarias gariepinus is a threat to indigenous catfishes in our rivers |
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