Marine Science Tools: Coral Survey

How many ways are used to complete a coral reef survey?

• one

• two

• three

What tool can be used to complete a fish census (count species of)?

• Quadrat

• T-bar

• Ruler

When using a T-bar and transect tape you are looking at species in all parts of the water column.

• True

• False

Why is it important to use the scale bar (T-bar) to take measurement?

• Fish weigh too much underwater to hold

• Organisms are smaller than they appear underwater

• Organisms are larger than they appear underwater

• It helps to keep the fish in one place

Which of the following can be recorded along a transect line?

• Type of bottom sediment

• Type of organisms

• Type of water

• Both sediment and organisms

The quadrat is used to

• count organisms within the square

• collect the organisms within the square

• measure the size of the organisms at the meter mark

How do coral scientist tell how old a coral might be?

• count how many rings it has

• use its size as an indicator

• use a scale to measure its weight

When taking measurement for the size of coral it is important to get 3 measurements; lenght, width and height.

• True

• False

Who is an important herbivore (plant eater) on a the caribbean reef?

• sea urchin

• algae

• fish

In a 10 meter square area the scientists only count a single species.

• True

• False