• Title/Summary/Keyword: 부화장

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Morphological changes during starvation of larvae of left eye flounder, Paralichthys olivaceus (넙치, Paralichthys olivaceus 자어의 기아시 형태변화)

  • Myoung, Jung-Goo;Kim, Hyung-Sun;Kim, Pyong-Ki;Kim, Yong-Uk
    • Korean Journal of Ichthyology
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    • v.4 no.1
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    • pp.20-28
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    • 1992

  • The influence of starvation on morphological change and survival rate of the left eye flounder larvae was examined at the KORDI laboratories in March, 1990. 1. The larvae of left eye flounder began of feed on rotifers in 5 days after hatching. In case of non-feeding, all of the larvae died in 11 days after hatching. The larvae which fed 1 day after the normal first feeding schedule grew normally but 100 of the larvae died in 14 days when the feeding was delayed for 2 days after hatching. 2. With the exhaustion of the yolk, the total length, body length, myotome height and gut height of unfed larvae decreased. Gut height is the most decreased demensions while starving. 3. The ratio of gut height to myotome height in unfed larvae has declined most rapidly compare to other demensions during the starvation. At 13 days after hatching, the ratios of these between fed and unfed larvae were 0.797 and 0.467, respectively. 4. The morphology of starving larvae were characterized as sharpened jaw, projected edge of lawer part of clavicle and slender gut.

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