Eye on the Reef Rapid Monitoring Module 4

Most coral polyps have clear bodies and their skeletons are white. True or false?

True

False

Which statement is incorrect for coral bleaching?

Living tissue is still present.

It can result from environmental stress.

Zooxanthallae that normally live inside the coral tissue are no longer present.

It is always fatal to the coral colony.

Coral eaten by Crown-of-thorns starfish will:

Have tissue loss.

Have tissue discolouration.

Have a COTS nearby in clear sight.

The most likely place to find an adult Crown-of-thorns starfish during the day is hiding at the base of a coral colony. True or false?

True

False

On a coral colony with tissue loss present from the base of the coral upwards, the most likely cause is:

Crown-of-thorns starfish.

Coral bleaching.

Drupella

Fish.

Drupella usually shelter under the coral colony or near the base during the day. True or false?

True

False

The colour of Drupella snails is usually:

Blue to green.

Pink to dark red.

White to yellow.

The first step in deciding if the white colour of coral is caused by coral bleaching or disease / predation is identifying if tissue loss has occurred. True or false?

True

False

A common indication of competition is the presence of a band of colour between the live coral and the dead coral. True or false?

True

False

If the coral is broken, this impact is categorised as:

Damage.

Bleaching.

Disease.

Predation.

Pigmentation response (pictured) is a disease. True or false?

True

False

Identify the predator shown in the photo.

Drupella

Crown-of-thorns starfish

Disease

Sea urchin

Identify the predator shown in the photo.

Drupella

Crown-of-thorns starfish

Sea star

Anemone

Eye on the Reef Rapid Monitoring Module 4

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