• Applied Microscopy
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• v.31 no.1
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• pp.85-90
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• 2001

The ultrastructures of the fertilized egg envelope from long nose barbel, Hemibarbus longirostris belong to Cyprinidae was studied using scanning and transmission electron microscopes. The fertilized egg was adhesive type, have a single micropyle resembling the pathway of sperm in the area of the animal pole. An outer surface of the fertilized egg envelope was arranged by adhesive structures irregularly. In section of fertilized egg, the egg envelope consists of two layers, an outer adhesive twofold layer with mushroom-like cluster and an inner lamellae layer consisting of four layers. These ultrastructural characters of fertilized egg envelope from long nose barbel can be utilized in taxonomy of teleost.

• Proceedings of the Zoological Society Korea Conference
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• 2000.10a
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• pp.177.3-178
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• 2000

No Abstract, See Full Text

• Journal of Korea Water Resources Association
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• v.42 no.5
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• pp.407-414
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• 2009

A quantitative analysis was conducted to study the impacts of artificial flow alteration on fish habitate condition change in the Geum River downstream the Daechung Multi-purpose Dam (DMD). River Analysis Package (RAP) was employed for the analysis and three fish species of black shiner, long nose barbel and Korean shinner were selected as icon species. The results of the analysis showed enhaced fish habitat conditions during low flow seasons in spring and fall after DMD construction, while the impact of the Youngdam Multipurpose Dam located upstream the DMD was insignificant. This result could be attributed to the fact that the increased flow during dry seasons helped create preferable habitat conditions for the fish species tested in this study.