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Geographic Variation and Distribution of Nuptial Color Patterns in Korean Chub, Zacco koreanus (Cyprinidae, Pisces)  

Chae, Byung Soo (National Park Research Institute)
Yoon, Hee Nam (Ecosystem Survey Team, National Institute of Environmental Research)
Publication Information
Korean Journal of Ichthyology / v.18, no.2, 2006 , pp. 97-106 More about this Journal
Abstract
In the investigation of geographic variations on the Zacco koreanus distributed widely in southern Korean Peninsula, it was found that there were distinct differences in the nuptial coloration among geographic populations. These color variations were presence of red band on anterior margin of pectoral fin and color patterns of dorsal fin. On the basis of those color variations three color types were recognized in Z. koreanus, that is, HK, NS and NE types. HK types were distributed mainly in Han and Geum River, NS types in Nakdong and Seomjin River, and NE types in Nakdong River and small streams on the east coast. It was noted ecologically and taxonomically that these three types were well separated geographically and two types of them, i.e., NS and NE types cohabit in the Nakdong River and shown a tendency of microhabitat segregation between them.
Keywords
Geographic variation; nuptial color; Zacco koreanus; Korea;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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