Kelp Forest.

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Presentation transcript:

Kelp Forest

Kelp Largest type of brown algae Grow up 1 ½ - 2 feet/ day Up to 100 m long Grow up 1 ½ - 2 feet/ day May form dense beds or forests

Structure of Kelp Pneumatocysts

Abiotic Factors Restricted to cold water Sunlight Hard substrate Located down eastern shores of ocean

Biology of Seaweeds – Kelp Beds and Forests Kelp is the collective term referring to very large brown algae dominating cold water regions of the earth.

Seasons in Kelp Forest Spring Summer Autumn Winter Upwelling fertilizes kelp Abundant plankton, fish feed Summer Rapid growth Autumn Relatively calm Winter Stormy Many kelp torn up

Biology of Seaweeds – Kelp Beds and Forests If the algae do not form a surface canopy, the algal communities are referred to as kelp beds. If the algae do form a surface canopy, the algal communities are referred to as kelp forests.

Abundant Animal Life Kelp feeders Scavengers Top snail Sea urchins Kelp crabs Decorator crabs

Other invertebrates Fish Brittle stars Sea stars Crabs Octopuses Giant kelp fish Garibaldi Opaleye Halibut Tubesnout

☺☺☺Sea Otters☺☺☺ Smallest marine mammal No blubber Spend lives in oceans Anchor to kelp when sleeping

Kelp forests affected by climate El Nino La Nina