1. Littoral Zone
2. Neritic Zone
3. Pelagic Zone
4. Photic/ Euphotic
5. Aphotic Zone
The STRATIFICATION is determined
*Degree of light penetration
Different ZONES receive different
amount of sunlight and nutrients.
Area between the lines of high and low tide. It
is a habitat of extreme physical change from
AQUATIC to TERRESTRIAL.
What causes tides?
*created by the gravitational pull of the moon
and to a lesser extent of the sun upon the
Highest level reached by water during high
Line of average low tide.
Line between the supratidal and subtidal
* Algae and other marine plants
Portion of the sea over the continent shelf
with depths down about 200 m. The largest
and most productive zone.
It is also called as "OPEN OCEAN"
*EPILAGIC ZONE is closest to the surface and
stretches down 200m. An abundance of light
allows for photosynthesis by plants.
*MESOPELAGIC ZONE begins at 200m down
and reaches a depth of 1000m and has a
little light but not enough photosynthesis to
*BATHYPELAGIC ZONE is 1000-4000 m.
Subzone containing the infrequent
bioluminiscent organism. Animals survive
mostly on the detritus that drifts down from
the epilagic zone.
Animals rise at night for food.
*ABYSSOPELAGIC ZONE is 4000m to direct
above the ocean floor and is completely dark
area. This zone consists of
bacteria, decomposers and detritus feeders.
*EUPHOTIC/PHOTIC ZONE is an area where
light penetrated the water
*APHOTIC ZONE is an area which is not
penetrated by light.