Which of the following is not one of the three major structures of coral reefs?
The U.S. Integrated Ocean Observing System (IOOS) is best described as _______.
Which of the following does not explain the importance of mangrove forests?
It is crucial to study ocean microbes because _______.
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Harlequin shrimp _______.
How has human use of salt marshes changed over time?
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Why are coral reefs overexploited?
Which of the following is most negatively affected by fishing practices?
Explain how the polyp uses its tentacles.
The polyp uses its tentacles to capture and ingest the phytoplankton it eats. The tentacles are also the primary means of defense for the polyp. They conceal the stinging nematocyst cells. The tentacles are also used to clear away debris from the mouth of the polyp.
Explain the issues associated with coral harvesting methods.
Coral harvesting methods cause damage to coral reef ecosystems faster than the ecosystems can recover.Blast fishing is used because it maximizes the harvesting of fish, but it is also destructive to surrounding coral. Cyanide harvesting has similar effects. It can often kill coral along with the fish that it is targeting. Coral harvesting targets coral. If large portions of coral are removed it is difficult for the ecosystem to recover, as the coral as essential for the ecosystem and grows slowly over a period of many years.
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