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4 Cards in this Set
- Front
- Back
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Rocky Intertidal Communities [3] |
- feeding - most sessile organisms filter feed - many mobile organisms are grazers (crabs, limpets, etc) (they scrape algae, bacteria off rocks) - others are detritivores (an organism that that feeds on dead and decomposing organic matter) - can't feed when emersed, so organisms higher in the intertidal zone grow more slowly - more higher = grow more slowly |
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Wave Energy |
- wave action varies
- most waves approach shore at an angle but are refracted; end up parallel to shore |
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Adaptations to Wave Energy |
- avoid it
- seaweeds use holdfasts - barnacles glue themselves down - suction cups on chitons and limpets |
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Adaptations to Wave Shock |
- gobies are fishes with modified pelvic fins that act as suction cups - most intertidal fishes lack swim bladders so they sink - some animals have thicker shells - some animals are more flexible |
