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Environmental Biology of Fishes

, Volume 38, Issue 4, pp 321–330 | Cite as

The fish community of a high mountain stream in Taiwan and its relation to dam design

  • Lee-shing Fang
  • I-shiung Chen
  • Ching-hui Yang
  • Jan-Jung Li
  • Jih-terng Wang
  • Ming-ching Liu
Article

Synopsis

The fish community of a high mountain stream in Taiwan was studied from 1988 to 1990 in a 16 km section of Ta-chia river where a new dam is planned for construction. There were 16 species of fish belonging to 7 families; 15 genera were recorded. Six species are endemic to Taiwan. The dominant species wereZacco pachycephalus, Acrosscheileus paradoxus andRhinogobius brunneus. The composition of fish fauna was different between the eight study sites. Adjacent sites did not show a higher similarity than remote ones. AdultZ. pachycephalus andA. paradoxus showed seasonal aggregation behavior in the stream. At two distinct sites, Kukan and Tungmau, these two species had similar breeding and stock composition patterns with an intensified production period of juveniles from late autumn to early winter and a low, but continuous production period of juveniles in summer months. This information suggest that fishes in the river have special adaptations to the typhoon season in summer and benthic algal blooming in winter. The similarity of fish community and the independent breeding sites of endemic fishes in Kukan and Tungmau also suggest that these are important factors to consider for conservation when the flooding area of a high mountain dam is designed.

Key words

Freshwater fish Population structure Breeding season Dam construction 

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Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Lee-shing Fang
    • 1
    • 2
  • I-shiung Chen
    • 1
  • Ching-hui Yang
    • 1
  • Jan-Jung Li
    • 2
  • Jih-terng Wang
    • 1
  • Ming-ching Liu
    • 2
  1. 1.Institute of Marine ResourcesNational Sun Yat-sen UniversityKaohsiungTaiwan, Republic of China
  2. 2.Preparatory OfficeNational Museum of Marine Biology-AquariumKaohsiungTaiwan, Republic of China

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