Marine Life Zones
Marine life zones that are divided by distance from shore?
intertidal zone, neritic zone, and oceanic zone .
where they live and how they move .
key characteristic of the euphotic zone
photosynthesis
There is no sunlight
Aphotic zone
what is the difference between the photic zone and the aphotic zone?
Photic zone is where sunlight can reach. Aphotic is where the sunlight cannot reach.
The upper part of the ocean which sunlight penetrates .
photic zone .
Algae that undergo photosynthesis ?
phytoplankton
extremely high pressure, consistently low temperatures, no sunlight, and sparse life.
abyssal zone
The area where the land and ocean meet and overlap is called
the intertidal zone
why do many fish in the abyssal zone locate food through chemical sensing ?
Because there is no sunlight .
Three factors used to divide the ocean into distinct marine life zones.
the availability of sunlight, the distance from shore, and the water depth .
all animals capable of moving independently of the ocean currents, by swimming or other means of propulsion .
Nekton
Chemicals from the vents become food for bacteria
hydrothermal vents
seaward from the low-tide line is called
the neritic zone
what part of the ocean has the greatest diversity of life ?
the euphotic zone. there is enough sunlight for marine animals to avoid predators, find food, recognize their species, and locate mates.
What is the euphotic zone ?
A portion of the photic zone where light is strong enough for photosynthesis to occur.
another name for zooplankton ?
animal plankton
what zone only covers about 5 percent of the world oceans?
the neritic zone
oceanic zone
beyond the continental shelf
What is the difference between Nekton and Plankton?
Nekton are able to move independently of ocean currents, Plankton are not
Open ocean of any depth .
pelagic zone
Organisms that drift with ocean currents
Plankton
in addition to salinity, what factor affects the density of sea water?
temperature
any sea bottom surface regardless of its distance from shore and is most inhabited by benthos organisms
benthic zone
Why is the neritic zone rich in life?
Conditions are ideal for photosynthesis because there is light and nutrients from runoff; the bottom provides shelter and habitat.