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Ecology of a Rocky Shore Community. Zones of Life along a Rocky Shore. Why are some animals and plants located in special zones and not all over?. Adaptations for life on a high energy rocky shoreline. High energy waves Low tide exposure. Animals on a typical New England rocky shore.

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zones of life along a rocky shore
Zones of Life along a Rocky Shore
  • Why are some animals and plants located in special zones and not all over?
slide5
Asian Shore Crab
  • Periwinkle snails
  • Blue Mussels
  • Purple Sea Urchin
  • Rock Barnacles
  • Common Sea Star
algae on a typical new england rocky shore
Algae on a typical New England rocky shore
  • Fucus
  • Knotted Wrack
  • Ulva
  • Chondrus
  • Kelp
adaptations to life on a rocky shore line adapting to wave shock
Adaptations to life on a rocky shore lineAdapting to Wave Shock
  • Barnacles
  • Cements shell to rock
  • Snails
  • Use a suction cup like foot
adaptations to wave shock
Adaptations to Wave Shock
  • Sea Stars and Urchins
  • Tube feet with suction cup ends
adaptations to wave shock9
Adaptations to Wave Shock
  • Blue Mussels
  • Byssel Threads ( strong cables)
adaptations to wave shock10
Adaptations to Wave Shock
  • Crabs and Lobsters
  • Wedge into rock spaces
  • Hide under rocks
adaptations to wave shock11
Adaptations to Wave Shock
  • Sea Weeds (macroalgae)
  • Hold fasts attach to rocks
rocky shore animal feeding adaptations
Rocky shore animal feeding adaptations
  • Barnacles
  • Filter food with feathery legs (filter feeder)
  • Snails
  • Scrape food with a radula - tongue with teeth (grazers and carnivores)
  • Sea stars
  • Use tube feet and stomach
slide14
Barnacles are hermaphrodites
  • Each barnacle has both male and female reproductive organs
  • Marine snails mate and deposit egg cases
  • Sea stars and Urchins broad cast eggs and sperm into the water
  • Marine Arthropods like crabs and lobsters mate. Female attracts male using pheromones.
  • After the female molts and mates with the male, eggs will later be deposited on underside of her abdomen and carried until they hatch.
slide15
Lobster with eggs
  • Green crab with eggs