1. Ocean’s Life Zones

2. Ocean’s Life Zones
70% percent of the Earth’s surface is covered with ocean
Conditions can vary within the ocean so we have divided them into life zones:
Intertidal
Neritic
Open Sea

3. 3 divisions of the open sea
Photosynthetic – similar to Neritic because only division that sunlight reaches.
Bathyal – plants can’t grow here
Abyssal – always dark

4. Open Ocean Zone Bathyal Zone Abyssal Zone Photosynthetic Zone
Intertidal Zone
Photosynthetic Zone
Neritic Zone
Open Ocean Zone
Bathyal Zone
Abyssal Zone

5. Open sea
Neritic
Intertidal
Photosynthetic
Bathyal
Abyssal

7. Neritic and intertidal
Neritic is over the shelf; photosynthetic is
The surface of the open sea
Neritic zone includes the tides, photosynthetic
doesn’t
Neritic and intertidal
Bathyal
Abyssal
intertidal
Open Sea

8. Ocean Life
Plankton: Plankton are microscopic organisms, like algae; that float on the oceans' currents.
Nekton Animals that swim or move freely in the ocean
come in all shapes and sizes
live in shallow and deep ocean waters. Most nekton eat zooplankton, other nektons or they scavenge for waste
Benthos organisms that inhabit the ocean floor.
Crab, sea stars, lobsters, sponges, sea anemones,

9. P B N