Binnualmultispecific spawning in Karimunjawa Archipelago, Indonesia.

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Abstract

Multispecies synchronous spawning has now been described from 23 regions globally (Baird et al. 2009). The first observation of multispecific synchronous spawning in Indonesia was in the Karimunjawa Archipelago in October 1995 (Edinger et al. in Tomascik et al. 1997). In 2009, the reproductive condition of coral colonies was examined at three sites around Sambangan Island (0550¢39.2†S, 11035¢12.4†E) along a line transect (100 m). In March, 40 % (n = 132) of the colonies on these transects contained mature oocytes (Fig. 1a). A total of 53 (of 132) tagged colonies from 8 of 13 species released their gametes between 1940 and 2215 hours on the night of 20 March 2009 (8 days after the full moon; Fig. 1b). Spawning also occurred on 3 April 2009 when 24 of 64 colonies from 6 of 13 species spawned their gametes at the same time of night as the previous spawning.

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• Binnualmultispecific spawning in Karimunjawa Archipelago, Indonesia. (deposited 24 May 2019 11:48) [Currently Displayed]