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Posted 08 Jan 2025

2 min read

This groundbreaking advancement in coral conservation and restoration is a collaborative effort led by Australian researchers.

About Cryo-born coral

  • Cryo-born corals: They are created using cryopreservation techniques, which involve freezing coral cells and tissues at very low temperatures.
  • Cryopreservation Process:
    • Coral cells and tissues contain water, which forms damaging ice crystals when frozen.
    • Cryopreservation uses cryoprotectants to remove water from cells during freezing & Support cell structures when thawed.

Significance of the Breakthrough

  • Climate Change Resilience: The project aims to deploy millions of heat-tolerant corals onto the reef annually to combat the effects of climate change.
  • Selective Breeding:
    • Cryopreservation allows researchers to bypass the limitations of natural coral spawning, which occurs only once a year.
    • It enables selective breeding and the use of colonies for reproduction multiple times.

About Coral Reefs

  • Corals are invertebrates from the class Anthozoa, phylum Cnidaria. 
  • They form reefs through colonies of polyps that secrete limestone skeletons and rely on symbiotic algae (zooxanthellae) for nutrition..
  • Distribution: Mainly found in shallow, sunlit waters between 30°N and 30°S latitude, with a preferred temperature range of 16-32°C.
    • Depth: They typically grow at depths less than 50 meters, where light levels are high.

Other Conservation Measures:

  • India:
    • National Committee on Wetlands, Mangroves, and Coral Reefs (1986): Advises on conservation.
    • Environment (Protection) Act (1986): Prohibits coral and sand use for construction.
    • The Zoological Survey of India (ZSI): Used Biorock or mineral accretion technology to restore coral reefs.
  • Global:
    • CITES lists coral species in Appendix II to regulate trade.
    • World Heritage Convention designates coral reef sites for protection.
    • World’s Largest Frozen Coral Repository: The Taronga CryoDiversity Bank holds trillions of sperm from 32 coral species, collected annually since 2011.

 

  • Tags :
  • Coral Reefs
  • Cryo-born coral
  • Biorock
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