ecosystem (rocky shore)
DESCRIPTION
Ecosystem (Rocky Shore). Rocky pool. Rocky Shore habitat. Zonation. Snail. Lichen. Upper Shore. algae. Periwinkle. Gastropod. Barnacle. Stalked barnacle. Limpet. Chiton. Middle Shore. sea cucumber. Sea urchin. Goby fish. Brown Algae. Sea Anemones. Lower Shore. - PowerPoint PPT PresentationTRANSCRIPT
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Ecosystem (Rocky Shore)
Rockypool
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Rocky Shore habitat
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Zonation
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Upper Shore
Periwinkle algae
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Middle Shore
BarnacleStalked
barnacle
Chiton
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Lower Shore
Brown AlgaeSea Anemones
Sea urchin
Goby fish
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Physical Factors
Tidal movement
Wave Action
Substrate
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Formation of tide
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Tidal movement Desiccation Difficulty in gas exchange (gill) High temperature Salinity fluctuation (river, rain,
rock pool) Illumination
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Rock pool
Time
Tide in
Tideout
Temperature
salinity
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Wave Action
Wind speed and direction Slope of shore or whether sheltered
Effect Buffeting action (tearing ) Washing away Sprays water to upper tide
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Substrate
Soft substratum as muddy and sandy shore
Hard surface for attaching Crack for shelter
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Adaptation
Against desiccation, wave and salinity Retreat to sheltered areas Protective cover Internal gill Strong adhesive power (byssus threads, muscular f
ood) Flattened body Red pigment in algae for deep water illumination
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Cone shaped limpets
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Up shore
Green algae
Low shore
Brown algae
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Shell, muscular food
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Inter-relationship in organisms
Predation Competition Commensalism Mutualism Parasitism
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Food Web
. 1 = Detritus, 2 = plankton, 3 = benthic algae, 4 = acorn barnacles, 5 = Mytilus edulis (mussels), 6 = Pollicieps, 7= chitons, 8 = limpets, 9 = Tegula, 10 = Littorina, 11 = Thais, 12 = Pisaster, 13 = Leptasterias. (Diagram from Begon, Harper et al 1990)
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Other predator
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Related web site
Rocky Shore — Plants and Animals http://www.tip.net.au/~sef/amanda/rsdeszon.htm
Intertidal Habitat: Rocky Shores http://darter.ocps.k12.fl.us/classroom/klenk/Rocky.htm
Intertidal Organisms
http://redbaron.bishops.ntc.nf.ca/wells/fieldtrp/survey.htm Intertidal Zone: Rocky — California coast
http://www.branson.org/www.branson.org/depts/science/marbio/Intertidal_Intro.html
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Marine biologist