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Coral reefs are an ecosystem that are both beautiful and diverse. Coral reefs are fragile because of their sensitivity to temperature change.

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What are the main threats to coral reefs posed by coral-eating fish, and how can their impact be mitigated?

Coral-eating fish can threaten coral reefs by overgrazing on the coral, which can lead to coral death and reduced reef health. Their impact can be mitigated by managing fishing practices, protecting key herbivorous fish species, and promoting coral reef conservation efforts.


Why coral reefs are important to fishing and tourism?

Coral reefs should be conserved for several reason.One is to prevent some marine species from extinction.Furthermore,coral reefs are an important source of nutrition and livelihood for many.Conserving reefs also contributes to the economy of fishermen as the yield for marine reserves are encouraging.Besides that,coral reefs help to maintain the habitats of many marine species by facilitating the growth of mangrove swamps and seagrasses.Reefs also helps to prevent shoreline erosion.Corals are also valuable as potentiol sources for medicines.Finally,coral reefs have the potential to increase the income generated from eco-tourism. Coral reefs are some of the oldest and most diverse ecosystems on our planet. They are one of the ocean's main nurseries and feeding grounds for fish and invertebrates, provide natural storm barriers for coastlines, and are a potential source for novel pharmaceuticals. Throughout their range, coral reefs are dying due to human influences. These negative influences induce stress and increase diseases in these populations. This lecture will cover the threats to coral reefs globally and why local coral reef loss is important to Puerto Rico.


What happens when coral polyps die?

When coral polyps die, their hard outer skeletons remain intact and empty, resulting in the formation of coral reefs. The decomposition of the soft tissues of the coral polyps provides nutrients for new coral growth, contributing to the continuous development of coral reefs.


How do parrotfish contribute to the ecosystem by eating coral and helping to maintain the health of coral reefs?

Parrotfish play a crucial role in the ecosystem by eating algae that can smother coral reefs. By grazing on algae, parrotfish help to keep the coral healthy and allow new coral to grow. This helps to maintain the balance of the coral reef ecosystem and supports the overall health of the reef.


Has an outer covering that forms reefs?

Coral reefs are formed by colonies of coral polyps that secrete calcium carbonate to build a hard exoskeleton around themselves. Over time, these skeletons accumulate and create the structure of the reef.