期刊
FISHERIES MANAGEMENT AND ECOLOGY
卷 7, 期 4, 页码 315-322出版社
BLACKWELL SCIENCE LTD
DOI: 10.1046/j.1365-2400.2000.007004315.x
关键词
abundance; crucian carp; distribution; goldfish; identification
类别
The crucian carp, Carassius carassius (L.), is a small fish of restricted distribution in the UK, which is probably only native to central and eastern England. The crucian carp is endemic to northern Europe. It has been widely confused with the introduced and congeneric goldfish, Carassius auratus (L.), and forms hybrids with that species and the introduced Cyprinus carpio L. The status of this fish has become confused with the presence of the congener and its hybrids, and it is now thought to be less frequent in occurrence than formerly.
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