Warm Up What covers almost ¾ of the Earth’s surface and holds both the largest animals and the smallest organisms on earth? The OCEAN

Mind Stretcher- 10/19 What are the two major factors that determine what kind of biome is found in a region? What are the two major factors that determine what kind of biome is found in a region? Which biome do you live in here in Georgia? Which biome do you live in here in Georgia? What is another name for the coniferous forest? What is another name for the coniferous forest?

Marine Ecosystem: The Oceans

On your Biome Map, label the oceans below

Marine Ecosystem Characteristics I. Abiotic factors determine life in the ocean I. Abiotic factors determine life in the ocean A. Temperature: As you get deeper, the temperature decreases A. Temperature: As you get deeper, the temperature decreases B. Depth: Affects what organisms can live there B. Depth: Affects what organisms can live there C. Sunlight: How far the sun reaches affects life in ocean C. Sunlight: How far the sun reaches affects life in ocean

Temperature Zones Surface Zone- warm top layer extending to 300 meters below sea level. Sun warms water & surface currents heat warm/cool waters Surface Zone- warm top layer extending to 300 meters below sea level. Sun warms water & surface currents heat warm/cool waters Thermocline- 300m to 700m below sea level; here water temperature drops fastest with increasing depth Thermocline- 300m to 700m below sea level; here water temperature drops fastest with increasing depth Deep Zone- from base of thermocline to bottom of ocean; Deep Zone- from base of thermocline to bottom of ocean; Average Temperature= 2 Celsius Average Temperature= 2 Celsius

Intertidal Zone- “between tides” Ocean meets land; animals adapt the exposure of air and waves Intertidal Zone- “between tides” Ocean meets land; animals adapt the exposure of air and waves Neritic Zone- downward slope; warm water from sun; corals, sea turtles, fish, dolphins live here Neritic Zone- downward slope; warm water from sun; corals, sea turtles, fish, dolphins live here Oceanic Zone- sea floor drops sharply! Deep water of open ocean; plankton near surface, whales, shark, fish live here Oceanic Zone- sea floor drops sharply! Deep water of open ocean; plankton near surface, whales, shark, fish live here Benthic Zone- deepest, dark ocean; Very cold water/no sunlight reaches; Get food that is dropped or from thermal vents; crabs, worms, and animals adapted to darkness Benthic Zone- deepest, dark ocean; Very cold water/no sunlight reaches; Get food that is dropped or from thermal vents; crabs, worms, and animals adapted to darkness

Ocean Zones Intertidal Zone: Intertidal Zone: