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KMID : 0893320020170010013
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Journal of Environmental Toxicology
2002 Volume.17 No. 1 p.13 ~ p.19
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Effects of Formalin on the Development of Fertilized Eggs and Hatched Larvae in Olive Flounder, Paralichthys olivaceus
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Park Chang-Beom
Na Oh-Soo
Lee Chi-Hoon
Kim Byung-Ho
Lee Young-Don
Heo Moon-Soo
Lee Jung-Jae
Lee Ki-Wan
Rho Sum
Song Choon-Bok
Choi Kwang-Sik
Lee Je-Hee
Yeo In-Kyu
Jeon You-Jin
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Abstract
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Effects of Formalin treatment on embryogenesis and larvae growing in fertilized eggs and hatched larvae of olive flounder, Paralichthys alivaceus were investigated. Fertilized eggs and hatched larvae were exposed to aqueous solution with 100, 200, 400, 800 and 1,000 ppm of nominal formalin concentration. They were kept in sea water of 16, 18 and 22, respectively. Survival rate and hatchability of fertilized eggs were high in control groups more than formalin treated groups in 16, 18 and 22, respectively (P<0.05). A similar effect that survival rate of hatched larvae was also observed for control and treatment groups. On the other hand, fertilized eggs treated with 400 ppm formalin, were all death in kept in 22. These results suggest that high-dose of formalin in fertilized eggs and hatched larvae in olive flounder, Paralichthys olivaceus was inhibited the normal embryogenesis for fertilized eggs and growing for hatched larvae. Also, these inhibited effects was promoted in higher temperature.
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KEYWORD
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Formalin, Olive flounder, Survival rate, Hatching rate
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