Study

First report of in situ survival of laboratory-reared offspring of the threatened species Dendrogyra cylindrus in the Caribbean

  • Published source details Villalpando M.F., Croquer A. & Sellares-Blasco R.I. (2021) First report of in situ survival of laboratory-reared offspring of the threatened species Dendrogyra cylindrus in the Caribbean. Bulletin of Marine Science, 97, 237-238.

Actions

This study is summarised as evidence for the following.

Action Category

Cultivate coral larvae in an artificial nursery located in a natural habitat

Action Link
Coral Conservation
  1. Cultivate coral larvae in an artificial nursery located in a natural habitat

    A study in 2019–2020 at an artificial nursery in a natural habitat off southeastern Dominican Republic (Villalpando et al. 2021) reported that transplanting nursery-grown coral Dendrogyra cylindrus spat (settled larvae) on tiles hung 1 m above the sea floor resulted in very low survival. A year after settled larvae were transplanted only one had survived (of an estimated 380 larvae). In August 2019 (after sunset, three nights after full moon), sperm and eggs were collected in-situ from two male and two female coral colonies. Sperm and eggs were mixed in the laboratory (83% fertilization rate) and larvae were fully developed within 24 hours. Twenty star-shaped ceramic tiles were added and left for 10 days for larvae to settle and the number of settlers on two tiles were counted. A month later, tiles were transferred to an in-situ nursery (12 m deep) and hung 1 m above the seafloor. Survival was assessed in May 2020 and September 2020.

    (Summarised by: William Morgan)

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