Primary producers based off of the study guide

Photosynthetic

main pigment in green algae

fucoxanthin

main pigment in brown algae

phycoerythrin

main pigment in red algae

Algin

obtained from kelp and used as an emulsifier for food items

Carrageenan

harvested from red seaweed and used as a thickening agent in dairy products

agar

from red seaweed and used in medicine, to thicken food and cosmetics

air bladders

found in brown algae and used to help maximize the light that hits the blade

chlorophyta

Green algae Phylum

Phaeophyta

Brown algae Phylum

Rhodophyta

Red algae Phylum

Giant bladder kelp

tallest macroalgae (215ft), can be found in california to alaska

Cold Polar Locations

Where brown algae is found

tropical and subtropical locations

where mangroves are found

• Thallus (body of the seaweed)

• Stipes (Stem like structure)

• Holdfast (root like structure)

seaweed structure

Pneumatophores

allows black mangroves to exchange gas

prop roots

anchor red mangroves into the ground and traps debris brought in by tides

• roots stabilize sediments

• prevents erosion

• Detritus carried in by tides gets caught in the roots and animals are able to eat it

3 ways mangroves are important to the ecosystem

lack the conducting tissues (veins) of plants

difference between plant bodies and sea weeds