Development of sensory organs in larvae of mouse grouper, Cromileptes altivelis

Mukai, Yukinori and Daning Tuzan, Audrey and Muhamad Shaleh, Sitti Raehanah and Senoo, Shigeharu (2006) Development of sensory organs in larvae of mouse grouper, Cromileptes altivelis. In: International Conference on "Coastal Oceanography and Sustainable Marina Aquaculture, Confluence & Synergy", 2nd-4th May 2006, Kota Kinabalu, Sabah.

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Abstract

This study was conducted to clarify the development of the sensory organs with larval growth in mouse grouper Cromileptes altivelis for the purpose of understanding larval behavior and improving larval rearing methods. The newly hatched larvae floated motionless in the rearing tanks. The eyes were only recognized as an outline with undifferentiated retina. The inner ears were only oval-shaped vesicles. The 1-day-old larvae still showed suspended posture, and were repeatedly moving up and down in the water. The eyes of 1-day-old larvae had a lens and several layered retina, and the olfactory pits were opened with epithelium cilia. Two-day-old larvae swam with a horizontal posture, the eyes were slightly pigmented, the mouth was open, and lower jaw movements were observed. Three-day-old larvae commenced ingesting rotifer Brachionus sp. Ten-day-old larvae showed strong phototaxis. At 20 days old, taste buds were observed in the buccal cavity..

Item Type:	Conference or Workshop Item (Full Paper)
Additional Information:	6616/11256
Uncontrolled Keywords:	mouse grouper, Cromileptes altivelis, sensory organ, larval behavior, larval rearing
Subjects:	Q Science > Q Science (General) Q Science > QL Zoology
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Biotechnology
Depositing User:	Dr. Yukinori Mukai
Date Deposited:	08 Jul 2013 09:47
Last Modified:	08 Jul 2013 09:48
URI:	http://irep.iium.edu.my/id/eprint/11256

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