Aquatic HabitatsApprox. 75% of Earth’s surface is water!

This is the aquatic biome.

• Marine Habitats • Saline (salt water)

• Oceans and Seas (35ppt.)• Estuaries (brackish 0-34ppt)• Coral Reefs (35ppt)

• Freshwater Habitats

• Lakes• Rivers• Ponds• Streams• Swamps• Marshes

Oceans & Seas• What’s the difference? Well…it’s in the

geographic details rather than the science. Seas often areas within oceans (Sargasso Sea). Sometimes they’re surrounded by land (Caspian Sea).

• Salinity is the measure of how much salt is dissolved in the water average is 35ppt or 3.5%).

• Divided into zones (zonation) in several way including temperature, distance from shore, and depth.

Ocean Zonation…I know…that’s a lot of zones!

Here’s Another View

And…one more

Lakes…they have zones too!

And another…

More Later…but this oughta get you started