What is Crustose coralline algae?

Crustose coralline algae (CCA) are rock-hard calcareous red algae that fulfill two key functional roles in coral reef ecosystems: they contribute significantly to reef calcification and cementation, and they induce larval settlement of many benthic organisms.

Where is Crustose coralline algae found?

These pink stony crusts are found in sunlit parts of the seafloor from the poles to the tropics, and collectively are called crustose coralline algae. Crustose coralline algae play a variety of important roles in many marine ecosystems, particularly coral reefs.

Where are coralline red algae found?

Red coralline algae can be found in most marine habitats. Articulated corallines grow mostly in low intertidal and subtidal coastal areas. Crustose corallines have been found in depths up to 500 feet (152 m).

Do starfish eat coralline algae?

Some hobbyists consider them public enemy # 1 and they need to be removed from the reef tanks immediately because they eat corals (especially zoanthids) and coralline algae. Others say that Asterina starfish are fine, harmless, and great scavengers and that you should not let the alarmists get you.

What eats red coralline?

Coralline algae play an important role in the ecology of coral reefs. Sea urchins, parrot fish, and limpets and chitons (both mollusks) feed on coralline algae.

Can coralline algae be red?

Red Coralline Algae While technically speaking all Coralline Algae is red algae belonging to the Phylum Rhodophyta (greek, meaning rose-red plant). Red algae are the most diversified of all algae, with over 4,000 tropical species and 7,000 species total.

What are the different types of crustose algae?

There are many variations of crustose, including Crustose Coralline Algae (CCA), found in three different habitats; flat, crest and slope reef. CCA are highly dependent on sunlight to grow in abundance, and their growth increases productivity.

What kind of organism is a crustose plant?

Crustose is a habit of some types of algae and lichens in which the plant grows tightly appressed to a substrate, forming a biological layer of the adhering organism.

What kind of algae is hard with calcareous deposits?

Coralline algae. Coralline algae are red algae in the order Corallinales. They are characterized by a thallus that is hard because of calcareous deposits contained within the cell walls.

What kind of organism is a crustose lichen?

A crustose lichen, Caloplaca marina. Crustose is a habit of some types of algae and lichens in which the plant grows tightly appressed to a substrate, forming a biological layer of the adhering organism.