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Search Result: 1 records
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Yamazato, K., M. Sato and H. Yamashiro,
1982
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Reproductive biology of an alcyonacean coral, Lobophytum crassum Marenzeller,
p. 671-678. In: E.D. Gomez, C.E. Birkeland, R.W. Buddemeier, R.E. Johannes, J.A. Marsh, Jr. and R.T. Tsuda (eds.) Proceedings of the 4th International Coral Reef Symposium Vol. 2. Marine Science Center, University of the Philippines, Manila, Philippines.
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Ref ID
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9200
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Author
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Yamazato, K., M. Sato and H. Yamashiro
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Year
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1982
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Title
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Reproductive biology of an alcyonacean coral, Lobophytum crassum Marenzeller,
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Source
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p. 671-678. In: E.D. Gomez, C.E. Birkeland, R.W. Buddemeier, R.E. Johannes, J.A. Marsh, Jr. and R.T. Tsuda (eds.) Proceedings of the 4th International Coral Reef Symposium Vol. 2. Marine Science Center, University of the Philippines, Manila, Philippines.
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Keywords
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Reproduction, Soft coral, Lobophytum crassum, Spawning, ICRS4
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Caption
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Hard copies of this symposium proceedings may be purchased from
The Marine Science Institute, College of Science, University of the Philippines,
Velasquez St., Diliman, Quezon City, Philippines.
Tel: (63 2) 922-3959 Fax: (63 2) 924-7678
msi.publications@upmsi.ph
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Abstract
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The alcyonacean coral. Lobophytum crassum Marenzeller is one of the most common members of the coral
reef communities in Okinawa. It is dioecious. Gonads are borne on all the mesenteries of a polyp except a pair of
dorsal directives. Mature oocytes are large. up to 603.3 X 542.8 I'm in diameter. Monthly mean number of oocytes
per polyp varies between 52 and 138. with those reaching mature size in May and June being 36 per polyp. The
breeding takes place in June. and fertilization appears to be external. The oocytes require two years for maturation.
while only one year is needed for spermatogenesis. The polyps located in the periphery and on the tips of
lobe-like projections of a colony are immature. The smallest gonad bearing colonies measure about 25 cm across.
Their polyps contain only one-year old oocytes while those of the larger colonies have both one-year and two-year
old oocytes.
Some of the above features are similar to those reported for another alcyonacean species. Alcyonium
digitatum, by Hartnoll. However. the present species differs from the latter in having a prolonged period of
oogenesis. a character which is shared with more remotely related species. such as Corallium rubrum and
Goniopora queenslandioe decima.
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