Vital coastal habitat was destroyed in the devastating floods that hit New South Wales in 2021 and 2022.
, was almost completely wiped out in the Port Stephens estuary and along the coast. That's a tragedy because this coral shelters young snapper and the endangered White's seahorse.we discovered how the coral reproduces. We used IVF to create baby coral in the lab. And we successfully transplanted the coral into the wild. This offers new hope for the survival of the species.Corals have a complicated sex life. There's more than one way to"do it". And gender varies too.
Many corals are hermaphrodites, which means they have both male and female reproductive organs. Others form colonies that are entirely male or female. And some mix or swap sexes. There were small orange dots inside some of the corals. These were much larger than the grains of dry orange"coral food" we fed them. So they had to be something else.
As fate would have it, we had collected fragments from two donor colonies—one female and one male. By chance, we discovered Dendronephthya australis is"gonochoric" . Researchers achieved larval settlement, witnessing the change to the single polyp stage of the soft coral. Credit: David Harasti
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