Intertidal Zonation • Zonation is a vertical banding of the organisms living on the rocky coastline. • These distinct bands occur in part from many complex physical and biological factors that effect marine organisms.
Mostly shelled orgs Spray or Splash Zone High Tide Zone Middle Tide Zone Many soft bodied orgs and algae Low Tide Zone
What are some stresses that affect the organisms residing in the intertidal zone?
Biotic factors affecting organisms living in the intertidal zone: • Competition for space and food • Predation • Reproduction • Substrate settlement preference • Osmoregulation (dessication)
Abiotic factors affecting organisms living in the intertidal zone: • Salinity • Temperature • Air and light exposure • Tidal flow • Waves and current action • Substrate • Wind direction and strength • Dissolved O2 • Storms • Natural Disasters
What are some adaptations to living in the intertidal zone?
Please see the power point entitled… “Rocky Shorewith labelsPower Point” From my school web page