Seaweeds (multicellular algae)

Seaweeds (multicellular algae) - waiting in safety. Kelp...

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Seaweeds (multicellular algae) green seaweed brown seaweed red seaweed
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lack accessory pigments which would allow them to catch light at deeper depths. Are usually simple in shape and delicate like a leaf of lettuce, but in tropical waters may be encrusting, depositing calcium carbonate. http://www.sonoma.edu/biology/algae/Green.html Dead man’s fingers Green seaweeds
Background image of page 2
thallus and holdfast. Parts of the thallus are the stipe, gas bladder, and blade. Why are the brown algae brown? How does this affect their distribution in relationship to green algae? brown algae
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
A typical, intertidal brown algae shown when exposed at low tide Note that the gas bladders fill the blades.
Background image of page 4
Kelp can reach 40 meters in length and form dense growths which are called kelp forests. Productivity rivals that of a tropical rain forest.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Kelp forests in Alaska and California Sea otters and starfish keep sea urchins in line sea urchins feeding and
Background image of page 6
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: waiting in safety. Kelp beds are associated with rocky substrate and cooler waters. World wide distribution of kelp shown in light tan May: Kaven Nineth Chavez Perez , Age 11, Guatemala Of the three types of Seaweeds, red algae are: # 1 in abundance of species, # 1 in biochemical complexity, and # 1 in depth range Some can live at great depths because of the ability of their accessory pigments to capture light. Some can live at the surface, probably because their dark pigments protect the photosynthetic machinery. Red algae http://www.sonoma.edu/biology/algae/Red.html Red algae can be free standing and beautiful Or, Red algae can be encrusting, requiring a rocky or hard substrate Encrusting red algae can help in building coral reefs because of the calcium carbonate they remove from the seawater and deposit in their tissue. An encrusting red algae growing on a scallop shell....
View Full Document

This note was uploaded on 04/07/2008 for the course OCS 1005 taught by Professor Condrey during the Spring '08 term at LSU.

Page1 / 12

Seaweeds (multicellular algae) - waiting in safety. Kelp...

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online