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  • KOREAN
  • P-ISSN2287-8327
  • E-ISSN2288-1220
  • SCOPUS, KCI

ISSN : 2287-8327

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Vol.28 No.5

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Egg Morphology and Early Life History of Acheilognathus signifer (Cyprinidae)

Journal of Ecology and Environment / Journal of Ecology and Environment, (P)2287-8327; (E)2288-1220
2005, v.28 no.5, pp.281-286


& (2005). Egg Morphology and Early Life History of Acheilognathus signifer (Cyprinidae). Journal of Ecology and Environment, 28(5), 281-286.

Abstract

The ripe unfertilized eggs of Acheilognathus signifer were elliptical shape and baggily swollenaxis and oil globe were not observed. The zona radiata of A. signifer had the structure of regular fibrilar net and the diameter of outer opening micropyle was about 2.5 μm and that of inner opening micropyle was about 1.5~2.0 μm. Development of fertilized eggs in A. signifer was proceeded in inclining position of animal pole and hatched in 49 hours under 20 1 ℃. The yolk sac was absolutely absorbed in 21 days after hatching.

keywords
Acheilognathus signifer, Early life history, Egg morphology, Micropyle

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