July 3, 2022

Finding Fluorescence by James Lynott – June NUPG Meeting (Watch Video)

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The Caribbean Research and Management of Biodiversity (CARMABI) has released its 2022 annual coral spawning prediction calendar for Curacao and the south Caribbean.  This calendar plays a central role in studying the reproductive biology of Caribbean corals and guiding coral restoration efforts for the southern Dutch Caribbean islands.

Based on these predictions, researchers are able to harvest coral gametes that are reared to larvae that can be used to cultivate future coral colonies.

Coral spawning is a miraculous event where entire coral colonies, prompted by the lunar cycle, sunset time and water temperature, release gametes (eggs and sperm) simultaneously. Gametes of one species fertilize another to become fertilized embryos that settle on the ocean floor after days to weeks.

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As divers, being able to witness a spawning event is a unique opportunity to enjoy the breathtaking scene as the entire reef becomes engulfed in a blizzard of future corals.

Each year, the Caribbean Research and Management of Biodiversity (CARMABI) releases a calendar to predict when each species of coral is expected to spawn. During these events, researchers from CARMABI, in collaboration with Reef Renewal Bonaire and Reef Renewal Curaçao, also collect gametes to be used to grow new corals in a laboratory setting.

Photo credit = CARMABI