Marine Biology May 10, 2006 Kelp Forests. Phylum Chlorophyta: green algae  Chlorphylls are the main photopigments.

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Presentation transcript:

Marine Biology May 10, 2006 Kelp Forests

Phylum Chlorophyta: green algae  Chlorphylls are the main photopigments

Phylum Rhodophyta: red algae   Contain phycobilins: accessory photopigments capable of absorbing blue and green light

Phylum Phaeophyta: brown algae   Contain fucoxanthins, accessory photopigments capable of absorbing blue and green light

Parts of the kelp thallus  Holdfast  Stipe  Pneumatocyst  Blade

Life cycle of Macrocystis pyrifera (giant kelp)

Kelp distribution: West coast of North America

Pelagophycus: huge blades!

And a personal favorite…  Postelsia palmiformes

Kelp distribution: worldwide

Requirements of kelp  Cold water (<62ºC)  Nutrient-rich  Light  Rocky substrate

Upwelling: N. hemisphere

Upwelling: S. Hemisphere

Invertebrates Photo: Kerry Werry

Giant kelpfish; kelp bass; kelp rockfish Photo: Monterey Bay Aquarium Photo: Luke Miller

Marine Mammals Photo: NOAA

 Orcas,  Sea otters  Sea urchins  Kelp