1. OCEAN ZONES
Chapter 13 Section 2
Ocean Zones
Chapter 13 Section 3

2. Marine Biomes Marine Biomes are biomes of salty water.
We know more about the moon than we do the ocean.
Saltwater contains 3% salt
The marine biome covers three fourths of the earth.

3. Benthic Environment- on the bottom from shore to deep ocean
Intertidal Zone-
where the ocean meets the land
Sublittoral Zone-
covers the continental shelf
Bathyl Zone-
zone that covers the continental slope
Abyssal Zone-
largest zone, meters deep
Hadal Zone-
6000 meters to the deepest ocean trench

5. Intertidal zone Shoreline, in the tide
Animals adapted to water and dry land
Receives the most sunlight
Clams, mussels, starfish, crabs, anemones, sponges, seaweed.

8. Sublittoral Zone Covers the continental shelf
Sunlight, pressure and temperature constant
Coral reefs are found here. They are considered the
rainforest of the sea
due to the great
Diversity of life found
There.

10. The Florida Keys are the exposed portions of an ancient coral reef .

13. Bathyl Zone Edge of continental shelf, along slope, to abyssal plain
200 to 4000 meters
Little sunlight
Sea stars, clams and oysters found here.
As the depth of the water starts to increase the water temperature decreases.

15. Abyssal Zone No plants and very few animals Largest ecological zone
Can reach 4000 meters
Crabs, sponges, worms and sea cucumbers,
Many animals live around hot water vents called hydrothermal vents or black smokers.
Animals have to adapt to extreme pressure.

17. Black Smokers/Hydrothermal Vents

19. Hadal Zone Deepest zone 6000-7000 meters deep Sponge, clam and worms
Fewest amount of animals
Animals here also
Have to adapt to
Intense pressure.

20. The Pelagic Environment- water in the ocean and what lives in the water
Neritic zone- water that covers the continental shelf
Oceanic zone- rest of water in the ocean

21. The rest of the water in the ocean
Covers the continental shelf

22. Neritic Zone Warm,shallow Much sunlight
Most marine organisms, plants and animals
Fish, plankton, mammals
Whales, dolphins

23. Oceanic Zone Covers the ocean floor beyond the continental shelf
Deep regions very cold, no sunlight
Fewer organisms
Pressure greater

24. 3 Groups of Marine Life
Plankton
Nekton
Benthos

25. Plankton Plankton are tiny open-water plants, animals or bacteria.
These organisms range in size from microscopic bacteria and plants to larger animals, such as jellyfish.
Plankton generally have limited or no swimming ability and are transported through the water by currents and tides.
Plankton communities serve as a base for the food chain.

26. Nekton Animals that swim or move freely in the ocean are nekton.
Nekton come in all shapes and sizes.
They live in shallow and deep ocean waters.
Most nekton eat zooplankton, other nektons or they scavenge for waste

27. Benthos
The benthos live on the ocean floor. Starfish, oysters, clams, sea cucumbers, brittlestars and anemone are all benthos.
Most benthos feed on food as it floats by or scavenge for food on the ocean floor.

28. _____shoreline, in the tide _____200-4000 meters
Match the letter to the correct fact: A. Intertidal Zone B. Sublittoral Zone C. Bathyl Zone D. Abyssal Zone E. Hadal Zone
_____Deepest Zone
_____ meters deep
_____shoreline, in the tide
_____ meters
_____largest ecological zone
_____covers the continental shelf
_____Receives the most sunlight
_____Deepest ocean trench
_____Fewest animals
_____No plants, few animals
_____black smokers found here
_____animals adapted to water and land
_____crabs, shrimp, clams, starfish
_____animals live around black smokers
_____warmest water
_____Sunlight, temperature and pressure constant
_____coral found here
_____Found at the edge of the continental shelf, along slope to the abyssal plain