Ocean Zones NotetakersThree primary factors determine what kind of life lives in the ocean.

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I. Horizontal Ocean Zones

Intertidal Zone

-Area between _____________ tide line and _____________ tide line

-Sometimes covered in ___________ and sometimes ____________

-Organisms adapted to __________, changing environments

Neritic Zone

-Area over the _________________ shelf

-Only as deep as ______________

-Has the most __________________ life

-Lots of _______________

-Temperature _____________ and pressure is ____________

Oceanic Zone (Open Ocean)

-Beyond the ________________ shelf

II. Vertical Ocean Zones

Sunlight or Photic Zone

-_____________ layer of the ocean to about ______________ meters down

-Lots of __________________

-Most ocean _______________ occur here

Twilight Zone

-Some sunlight but not enough for ______________________

-_____________-____________ deep

Midnight Zone

-No ________________

-From ___________ to about __________

-Near ________________ temperatures and ____________ pressure

Abyssal Zone

-No _________________

-_________________ and below

-_______________ water, very _________ pressure

-Food is ________________

-Seabed is covered by __________-__________ooze

Benthic Zone

-The Ocean _______________

-_________________ all the other zones

-Can be ____________ or ____________

III. 3 Basic Lifestyles

Plankton

-________________ or very poor ____________________

-Plankton divided into 2 groups:

-Phytoplankton

-producers, -__________________

-Must live in the _______________ zone

-Most abundant in shallow ____________ areas or

in ______________ zones

-The basis of the oceanic ___________ _______

-Zooplankton

– consumers

-animals that live all or part of their life _____________

-they are generally either very small ____________ or large but ___________ -

____________

Nekton

-Free _______________

-Maneuver actively in the ____________ _____________

-Found in the water column from ______________ to ocean ____________

Benthos

-Live either on or attached to the _________________

-Primarily ___________ ____________ or scavengers