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Marine Ecosystems pp 82-83

The marine ecosystem is divided into several distinct zones, each with unique characteristics and inhabitants. The open ocean, extending to depths of two thousand meters, is home to a diverse array of sea life including dolphins, whales, plankton, and sharks.

Marine Ecosystems pp 82-83

Marine Ecosystems pp 82-83

Oceanic Zones

Deep Oceans: includes abyssal zones ( below 2 thousand meters)
Characteristics

Coldest-darkest

Tube worms

Clams

Microorganisms use deep hydrothermal vent to produce energy (chemosynthesis).

Species have bioluminescence (glowing light).

No light can reach it. No photosynthesis.

Open Oceans: Includes all surface water until depths of 2 thousands meters
Contain the majority of sea life

Plankton: tiny floating organisms

Dolphins

Sharks

Whales

In and Along Costal

Neritic
Organisms

Brittle Stars

Coral

Algae

Kelp Forest

Include underwater zone from shore to continental shelf.
Intertidal
Organisms:

Crabs

Anemones

Barnacles

Seagrasses

Include beaches and Rocky Shores