SEA
ECOSYSTEM
ZONES:
1. Littoral Zone
*Subtidal Zone
*Supratidal Zone
*Intertidal Zone
2. Neritic Zone
3. Pelagic Zone
*Epipelagic Zone
...
The STRATIFICATION is determined
by:
*Degree of light penetration
*Temperature
*Oxygen supply
THEREFORE:
Different ZONES r...
LITTORAL ZONE:
Area between the lines of high and low tide. It
is a habitat of extreme physical change from
AQUATIC to TER...
*SUPRATIDAL ZONE
Highest level reached by water during high
tide.
*SUBTIDAL ZONE
Line of average low tide.
*INTERTIDAL ZON...
INHABITED BY:

* Mollusks
* Crustaceans
* Algae and other marine plants
NERITIC ZONE:
Portion of the sea over the continent shelf
with depths down about 200 m. The largest
and most productive zo...
PELAGIC ZONE
It is also called as "OPEN OCEAN"
*EPILAGIC ZONE is closest to the surface and
stretches down 200m. An abunda...
*BATHYPELAGIC ZONE is 1000-4000 m.
Subzone containing the infrequent
bioluminiscent organism. Animals survive
mostly on th...
*EUPHOTIC/PHOTIC ZONE is an area where
light penetrated the water
*APHOTIC ZONE is an area which is not
penetrated by ligh...
INHABITED BY:
*various kind of fishes
*some aquatic mammals
*crustaceans
*mollusks
*coelenterates
Three main types of fishes:
1. JAWLESS FISHES
2. CARTILAGINOUS FISHES
3. BONY FISHES
ART OF SELF-DEFENCE
*Hiding themselves (CAMOUFLAGE)
*Creatures use weapons to repel their
enemies:
>Stinging Spines locate...
>PORCUPINE FISH- turns into a prickly globe
too big to be swallowed by most fish.
>SQUID AND OCTOPUS- squirting ink
>NO WE...
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Sea ecosystem

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Sea ecosystem

  1. 1. SEA ECOSYSTEM
  2. 2. ZONES: 1. Littoral Zone *Subtidal Zone *Supratidal Zone *Intertidal Zone 2. Neritic Zone 3. Pelagic Zone *Epipelagic Zone *Mesopelagic Zone *Bathypelagic Zone *Abyssopelagic Zone 4. Photic/ Euphotic Zone 5. Aphotic Zone
  3. 3. The STRATIFICATION is determined by: *Degree of light penetration *Temperature *Oxygen supply THEREFORE: Different ZONES receive different amount of sunlight and nutrients.
  4. 4. LITTORAL ZONE: 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 Earth's ocean.
  5. 5. *SUPRATIDAL ZONE Highest level reached by water during high tide. *SUBTIDAL ZONE Line of average low tide. *INTERTIDAL ZONE Line between the supratidal and subtidal zone.
  6. 6. INHABITED BY: * Mollusks * Crustaceans * Algae and other marine plants
  7. 7. NERITIC ZONE: Portion of the sea over the continent shelf with depths down about 200 m. The largest and most productive zone.
  8. 8. PELAGIC 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 occur.
  9. 9. *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.
  10. 10. *EUPHOTIC/PHOTIC ZONE is an area where light penetrated the water *APHOTIC ZONE is an area which is not penetrated by light.
  11. 11. INHABITED BY: *various kind of fishes *some aquatic mammals *crustaceans *mollusks *coelenterates
  12. 12. Three main types of fishes: 1. JAWLESS FISHES 2. CARTILAGINOUS FISHES 3. BONY FISHES
  13. 13. ART OF SELF-DEFENCE *Hiding themselves (CAMOUFLAGE) *Creatures use weapons to repel their enemies: >Stinging Spines located at their bodies and fins. >discharging electric energy
  14. 14. >PORCUPINE FISH- turns into a prickly globe too big to be swallowed by most fish. >SQUID AND OCTOPUS- squirting ink >NO WEAPON: pair up with another creature that is better armed.
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