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Egg Development and Early Life History of the Endangered Species Gobiobotia brevibarba (Pisces: Cyprinidae)  

Ko, Myeong-Hun (Department of Marine Biotechnology, Soonchunhyang University)
Park, Sang-Yong (Department of Marine Biotechnology, Soonchunhyang University)
Lee, Ill-Ro (Department of Marine Biotechnology, Soonchunhyang University)
Bang, In-Chul (Department of Marine Biotechnology, Soonchunhyang University)
Publication Information
Korean Journal of Ecology and Environment / v.44, no.2, 2011 , pp. 136-143 More about this Journal
Abstract
Early life history of the endangered species Gobiobotia brevibarba was investigated to provide baseline data for biological characteristics and restoration. Adult fish were sampled by spoon net capture at Hongcheon-gun, Gangwon-do, Korea, in April 2010. Eggs were obtained after injection of Ovarprim and were artificially fertilized by the dry method in the laboratory. The mature eggs were slightly adhesive and transparent with greyish and average $1.24{\pm}0.07$ mm in diameter. The hatching of the embryos took place about 120 h after fertilization at a water temperature of $23^{\circ}C$. The newly-hatched larva averaged $5.5{\pm}0.29$ mm in total length. Four days after hatching, they averaged $7.4{\pm}0.26$ mm in total length and their yolk sacs were completely absorbed. From 15 days after hatching, they entered the juvenile stage and reached $9.9{\pm}0.72$ mm in total length. One hundred days after hatching, their band patterns and external form were similar to those of adults, and they averaged $36.0{\pm}3.11$ mm in total length.
Keywords
endangered fish; Gobiobotia brevibarba; egg development; early life history;
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Times Cited By KSCI : 5  (Citation Analysis)
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