Intertidal Communities/Coral Reefs

Rocky intertidal communities

________ are made up of zonations.

Mobile organisms

________ can move to the non- wave exposed side of a rock.

Mesenterial filaments

________= strings that come off individual members to reel in food, think of them as "long fishing nets.

Corals

________ are basically just copies of the first polyp that landed there.

surface area

Gathering in numbers= increasing the ________ so that the wave goes over the entire group, decreasing the force of the wave.

Radiator effect

Increased surface area on their bodies

thin bones

Reduced skeletons= ________ that make up their skeleton.

Tritons

The only ones that can consume them because the sea star is poisonous.

bioluminescence

the use of chemical reactions in body to make light.

Endoparasites

internal parasites (muscles, guts, blood)

Operculum

Covering thats used to close their bodies from the external environment.

Transport host

only used to move from one organism to another.

Intertidal

"between communities"

Operculum

Covering thats used to close their bodies from the external environment

Hermatypic corals

"reef-building corals", mutualistic relationship with zooxanthallae

Ahermatypic corals

"non-reef building corals", lives in deep water

Fringing Reef

Close to the shore, the youngest type of reef

Barrier Reef

Further away from the coast, very large

Atoll

The oldest type of reef

Patch reef

small, isolated reefs that grow up from the open bottom of the island platform or continental shelf

Planula

Free-floating microscopic Cnidarians

What creates the foundation for a coral reef?

Coraline red algae dies and releases calcium that is mixed with sand

Photic zones

Areas that can receive pockets of sunlight

How can mobile organisms mitigate the effects of wave shock?

By moving to a non-wave exposed side of a rock

How can non-mobile organisms mitigate the effects of wave shock?

Evolved to have thicker shells (“adhesives”), lowering their profile, and gathering in numbers

Most organisms living in coral reefs are

Euryhaline