Cryopreservation as a Tool for Reef Restoration: 2019

Area of Science:

• Marine Biology
• Conservation Science
• Genetics

Background:

• Coral reefs worldwide are degrading due to pollution, overfishing, and climate change impacts like ocean warming and acidification.
• These combined stressors lead to increased coral susceptibility to disease, bleaching, and a decline in genetic diversity and population viability.
• Marine protected areas and climate change mitigation are crucial but insufficient against ongoing impacts.

Purpose of the Study:

• To explore and apply gamete cryopreservation as a tool for coral conservation.
• To establish genetic banks for preserving coral biodiversity and genetic diversity.
• To develop the foundational science for cryopreserving coral larvae for future reef restoration.

Main Methods:

• Successful cryopreservation of sperm from approximately 30 coral species.
• Ongoing research and development in freezing and thawing coral larvae.
• Establishment of genetic banks utilizing cryopreserved samples.

Main Results:

• Significant success in cryopreserving coral sperm, preserving genetic material.
• Advancement in the basic science required for coral larvae cryopreservation.
• Creation of genetic banks to support conservation initiatives.

Conclusions:

• Gamete cryopreservation is an effective strategy to maintain coral reef biodiversity and genetic diversity.
• Cryopreservation acts as an insurance policy against the ongoing decline of coral populations.
• Established genetic banks and cryopreservation techniques can mitigate threats and aid in the restoration of coral reefs, including the Great Barrier Reef.