Abstract
Gametogenesis and spawning have been studied since 1986 in a population of Protopalythoa sp. (Anthozoa, Zoanthidea) from Orpheus Island, Great Barrier Reef. Fertile zooids were gonochoric or hermaphroditic with oocytes and sperm vesicles intermingled in the same mesentery; colonies were single sex or mixed. Oocytes arose in macrocnemes below the actinopharynx and were first observed in July. Their mean diameter increased from < 50 μm to 160–240 μm by November, by which time they contained zooxanthellae. Female zooids each produced 800–2400 ova. No testicular vesicles were visible before October but spermatozoa were present in November and December. Spawning in each of three years occurred in November (4th to 6th nights after full moon) simultaneously with mass spawning of scleractinian corals. The buoyant eggs (along with sperm in the hermaphroditic zooids) were released in bundles. Some large oocytes and mature sperm were still present in December.
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References
Alino, P. M. & J. C. Coll, 1989. Observations of the synchronized mass spawning and post settlement activity of octocorals on the Great Barrier Reef, Australia. Bull. mar. Sci. 45: 697–707.
Babcock, R. C., G. D. Bull, P. L. Harrison, A. J. Heyward, J.K. Oliver, C. C Wallace & B. L. Willis, 1986. Synchronous spawning of 105 scleractinian coral species on the Great Barrier Reef. Mar. Biol. 90: 379–394.
Babcock, R. C. & J. S. Ryland, 1990. Larval development of a tropical zoanthid [Protopalythoa sp.) Invert. Reprod. Devel. 17: 229–236.
Cooke, W. J., 1976. Reproduction, growth and some tolerances of Zoanthus pacificus and Palythoa vestitus in Kaneohe Bay, Hawaii. In G. O. Mackie (ed.), Coelenterate ecology and behavior. Plenum Press, N.Y.: 281–288.
Fadlallah, Y. H., R. H. Karlson & K. P. Sebens, 1984. A comparative study of sexual reproduction in three species of Panamanian zoanthids (Coelenterata: Anthozoa). Bull. mar. Sci. 35: 80–89.
Harrison, P. L., R. C. Babcock, G. D. Bull, J. K. Oliver, C. C. Wallace & B. L. Willis, 1984. Mass spawning in tropical reef corals. Science, N.Y. 223: 1186–1189.
Karlson, R., 1981. Reproductive patterns in Zoanthus spp. from Discovery Bay, Jamaica. Proc. 4th int. Coral Reef Symp. 2: 699–704.
Muirhead, A., P. A. Tyler & M. H. Thurston, 1986. Reproductive biology and growth of the genus Epizoanthus (Zoanthidea) from the north-east Atlantic. J. mar. biol. Ass. U.K. 66: 131–143.
Willis, B. L., R. C. Babcock, P. L. Harrison, J. K. Oliver & C. C. Wallace, 1985. Patterns in the mass spawning of corals on the Great Barrier Reef from 1981–1984. Proc. 5th int. Coral Reef Congr. 4: 343–348.
Yamazato, K., F. Yoshimoto & N. Yoshihara, 1973. Reproductive cycle in a zoanthid Palythoa tuberculosa Esper. Publs Seto mar. biol. Lab. 20: 275–283.
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© 1991 Springer Science+Business Media Dordrecht
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Ryland, J.S., Babcock, R.C. (1991). Annual cycle of gametogenesis and spawning in a tropical zoanthid, Protopalythoa sp.. In: Williams, R.B., Cornelius, P.F.S., Hughes, R.G., Robson, E.A. (eds) Coelenterate Biology: Recent Research on Cnidaria and Ctenophora. Developments in Hydrobiology, vol 66. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3240-4_16
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DOI: https://doi.org/10.1007/978-94-011-3240-4_16
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