Eye on the Reef

For the 360° survey, you choose an area that:

• has the most damage.

• is typical of the survey site.

• has the most interesting species.

• has the greatest variety of benthos types.

For the 360° survey, the size of the circle should have a:

• depth of 5 meters.

• diameter of 5 meters.

• radius of 5 meters.

• circumference of 5 meters.

Benthos refers to the _____________ and the ____________ and plants that live there

• seabed, animals

• coral reef, coral

• ocean, animals

• coral, animals

Which statement is incorrect about plants.

• Macroalgae a natural part of a reef ecosystem

• Macroalgae have no hard skeleton, so are always softer than rocks or hard coral.

• macroalgae are attached to a substrate

• Macroalgae is always green

Coral is a generic term for a group of animals that have:

• eyes.

• fins.

• polyps.

• a hard skeleton.

On recently dead coral, the living tissue is no longer present. True or false?

• True

• False

Which statement about live coral rock is incorrect?

• This category is used to determine if there is substrate available for coral larvae to settle on.

• When coral rubble is cemented together with calcareous algae, it is categorised as live coral rock.

• Live coral rock is an indication that a large number of coral colonies have recently died.

• Live coral rock refers to corals that are long dead and have become solid substrate. .

Coral rubble is defined as pieces of dead coral:

• that are bright white or have a light cover of algae.

• that are loose and can be moved by wave action.

• found only in the lagoon.

• attached to the reef.

Dead coral that is bright white or has become green or brown due to a light cover of algae is classified as:

• live coral.

• macroalgae.

• live coral rock.

• recently dead coral.

Identify the benthos shown in the photo.

• Macroalgae

• Recently dead coral

• Live coral rock

• Coral Rubble