IGNOU MED 1 2018 - Why are coral reefs considered to be important yet fragile ecosystems?

Question

Why are coral reefs considered to be important yet fragile ecosystems?

09 Mar 2018

Answer :

Word Count : 369

Coral reefs are fragile because their environment requirements for survival are very limited. They grow in oligotrophic clear sea water and addition of nutrients/sediments leads to their degradation. In addition, the addition of sediments blocks the sunlight which is required for growth of some corals. Any change in the ambient environment lead to their quick degradation. They may adapt and evolve but evolution is a lengthy process, and scientist fear that the rate at which we are modifying the environment of our planet, these marine

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