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

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

Marine BiologyMarine BiologyMay 10, 2006May 10, 2006

Kelp ForestsKelp Forests

Phylum Chlorophyta: green algaePhylum Chlorophyta: green algae

Chlorphylls are the main Chlorphylls are the main photopigmentsphotopigments

Phylum Rhodophyta: red algaePhylum Rhodophyta: red algae

Contain phycobilins: accessory photopigments capable of absorbing blue and green light

Phylum Phaeophyta: brown algaePhylum Phaeophyta: brown algae

Contain fucoxanthins, accessory photopigments capable of absorbing blue and green light

Parts of the kelp thallusParts of the kelp thallus

HoldfastHoldfast StipeStipe PneumatocystPneumatocyst BladeBlade

Life cycle of Life cycle of Macrocystis Macrocystis pyriferapyrifera (giant kelp) (giant kelp)

Kelp distribution:Kelp distribution:West coast of North AmericaWest coast of North America

PelagophycusPelagophycus: huge blades!: huge blades!

And a personal favorite…And a personal favorite…

Postelsia Postelsia palmiformespalmiformes

Kelp distribution: Kelp distribution: worldwideworldwide

Requirements of kelpRequirements of kelp

Cold water (<62Cold water (<62ºC)ºC) Nutrient-rich Nutrient-rich LightLight Rocky substrateRocky substrate

Upwelling: N. hemisphereUpwelling: N. hemisphere

Upwelling: S. HemisphereUpwelling: S. Hemisphere

InvertebratesInvertebrates

Photo: Kerry Werry

Giant kelpfish; kelp bass; Giant kelpfish; kelp bass; kelp rockfishkelp rockfish

Photo: Monterey Bay Aquarium

Photo: Luke Miller

Marine MammalsMarine Mammals

Photo: NOAA

Orcas, Orcas, Sea otters Sea otters Sea urchinsSea urchins KelpKelp