Green Algae
Brown Algae
Did You Know?
Red Algae
100

Brilliant white when bleached in sun.

What is cactus algae?

100

Turns dark brown on beach.

What is pelagic sargassum?

100

Have bitter chemicals that discourage grazing by fish

What is iridescent-banded algae?

100

Where branching coralline algae grows?

What is shallow seagrass beds?

200

What isgrape caulerp?

Long,with yellow rhizomes and green branche.

200

What is balloon seawee?

It’s always flattened and clumps together 

200

Red algae have a photosynthetic pigment that absorbs blue light, allowing the plants to live at greater depths than green plants.

Many red algae are farmed as seafood and are an important part of the Asian-food lover's diet.

200

What is red spineweed?

has brown-red branches with tiny, stiff, pointed branchlets in whorls of three

300

What is com caulerpa?

Dark green with slender stalks attached to rhi

300

What is iridescent banded algae?

It’s flat and does not curl at the ends 

300

The bubble-branchlets of red grapes contain sugars and protein for buoyancy so that strands remain upright in water.

The crushed skeletons of thicket algae and branching coralline algae are sources of beach sand.

300

What is spiny seaweed?

has fragile, pale-pink branches with stubby branchlets. Colors also may be yellowish or pale green.

400

What is sailor‘s eye

Looks smoot,dark green,miniature waterballon?

400

What is padina 

It’s green and brownish with fromds 

400

A toxic, alien species of caulerpa from the Tropics has invaded the Mediterranean Sea and is causing big ecological troubles.

The invaders may be clones of a single released aquarium plant 

400

What is graceful red weed?

has greenish to bright-red, forked branches like sinuous clumps of spaghetti. This alga quickly bleaches clear.

500

what is green fleece 

Has forked,spongy,in the water it comes together 

500

What is dictyota?

It’s flat with brown fronds and smooth margins

500

Much of the coarse, white beach in the Keys is made of pulverized cactus algae that grew recently, or as much as tens of thousands of years ago.

Shaving brush and other treelike green algae are coenocytic, meaning that there is no distinction between individual cells, with direct connections of cytoplasm

500

What is hypnea?

Grows in wiry, tangled yellowish brown clumps

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