marine ecosystems 8th grade science, swms
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Marine Ecosystems 8th Grade Science, SWMS Types of Organisms
Organisms classified based on: Three types:
How they move Where they live Three types: Benthos Plankton Nekton
Benthos Live on or near bottom of ocean
Snails, Starfish Sometimes attached to ocean floor Kelp Forests,
Sponges Plankton Tiny organisms that move due to currents.
Zooplankton- animal like. Example: Krill Phytoplankton-
plant-like.Example-algae and diatoms. Nekton Free-swimming Found in
all layers of ocean
Examples: Fish, Whales, Eels, Seals, etc. Oceanic Zones Three
different zones based on distance from shoreline.
Intertidal Neritic Oceanic Each house different organisms! **1**
Intertidal Description: Shoreline area between high and low tide
mark.
Organisms: sea anemones, starfish, crabs, seaweed, barnacles, birds
Adaptations: Need to be to survive at high tide and low tide. Be
able to hang on and not get washed away by the waves.
Characteristics of the water: Shallow. Neritic Zone Description:
gentle slope from the shore to the deeper ocean floor. Organisms:
coral reefs, kelp forests, fish, algae, starfish, eels, clownfish,
sea anemones, turtles Adaptations: Home to most life in the oceans.
Characteristics: Fairly constant temperature, sunlight, and
salinity.Ocean depth up to 200 feet. Neretic Zone (coral reefs and
kelp forests)
First day nemo Oceanic Zone Description: Deep open waters.
Hydrothermal vents
Organisms: whales, dolphins, sharks, squid, jellyfish, krill.
Adaptations: Most live in top 200 meters of the surface.
Characteristics: Sunlight only in the top 200 meters. High pressure
and low temperatures below 200 meters.No sunlight and dark below
200 meters. Oceanic Zone Angler attack Angler nemo Hydrothermal
Vents Seawater moves into ocean from cracks in Earths crust. High
temperatures Chemosynthesis- bacteria use chemicals to make oxygen.
Unique ocean life! Challenger Descent Images Full length
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