Zoological Studies

Vol. 36 No. 2, 1997

Effects of Temperature on the Dimensions of the Lorica of the Marine Choanoflagellate Acanthocorbis camarensis

Yuh-ling Lee Chen*, Jia-Chi Sheu and Seiko Hara**

Department of Marine Resources, National Sun Yat-sen University, Kaohsiung, Taiwan 804, R.O.C. Tel: 886-7-5255025, Fax: 886-7-5255020

Yuh-ling Lee Chen, Jia-Chi Sheu and Seiko Hara (1997) Effects of temperature on the dimensions of the lorica of the marine choanoflagellate Acanthocorbis camarensis. Zoological Studies 36(2): 115-122. This paper presents the effects of temperature on the dimensions of the lorica and the length of the costal strip of the longitudinal costa in a laboratory cultured marine choanoflagellate, Acanthocorbis camarensis. Four tem peratures, 15C, 25C, 30C, and 35C, were tested. Flagellates raised at higher temperatures had a smaller lorica and shorter costal strip than those cultured at lower  temperatures.  The temperature  effect on the lorica dimension of a choanoflagellate is here clearly demonstrated for the 1st time.

Key words: Temperature, Choanpflagellate, Lorica dimension.

*Correspondence: **Current address: Miyazaki International College, 1405 Kano, Kiyotake-cho, Miyazaki 889-16, Japan.