The Marine BiomeMarine Food Chains

Biodiversity

•The variety of living things in a particular area.

Ecosystems

•The focus of all ecosystems is food.

•Energy is passed on by food.

Trophic Levels

•Autotrophs (producers):▫Make their own food using energy from the

sun. ▫Ex. Plants, algae, bacteria

Trophic Levels

•Heterotrophs (consumers): ▫Need to eat other organisms to get energy.

▫Herbivores: Eat plants, algae, bacteria▫Omnivores: Eat plants and animals▫Carnivores: Eat animals only

Trophic Levels

•Scavengers: ▫Eat dead material. ▫Ex: lobster, shrimp

•Decomposers:▫Break down dead material. ▫Ex. Bacteria

Food Chains

•Energy is recycled through the trophic levels.

Food Chains

•The arrows show the direction of energy flow.

•They always begin with a producer.

Food Web

•Shows many food chains interacting in an ecosystem.