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ALGAE. Division CHLOROPHYTA Division HETEROKONTOPHYTA Division RHODOPHYTA. DIVISION CHLOROPHYTA CLASS CHLOROPHYCEAE. All shades of green Chlorophyll A + B They are often tolerant of difficult conditions: Pollution Reduced salinity Commonly we can find :
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ALGAE • Division CHLOROPHYTA • Division HETEROKONTOPHYTA • Division RHODOPHYTA
DIVISION CHLOROPHYTACLASS CHLOROPHYCEAE • All shades of green • Chlorophyll A + B • They are often tolerant of difficult conditions: • Pollution • Reduced salinity • Commonly we can find: - In upper half of intertidal regions • In brakish water • On beaches subjest to freshwater run-off • Growing on pier piles • In splash-zone rock pools
DIVISION HETEROKONTOPHYTACLASS PHAEOPHYCEAE • Brown algae • Chlorophyll + fucoxanthin • All are multicellular • They are several species on rocky shores • In shallow sublittoral situation; few species can tolerate reduced salinities or higher temperatures.
DIVISION RHODOPHYTACLASS RHODOPHYCEAE • Red algae • Chlorophyll + phycoeritrin + phycocyanin (red pigment) (blue pigment) • The colour of different species is very variable • They are the most tolerant of reduced light conditions; They can survive in deeper water than other types of plant • Many red seaweeds are intolerant of drying out or reduced salinities. • Appear in permanent rock pools. • Very damp areas under larger plants • Sublittoral situations
LOWER INTERTIDAL ZONE • DIVISION HETEROKONTOPHYTA • CLASS PHAEOPHYCEAE • Bifurcaria bifurcata • Cystoseira tamariscifolia • Sargassum muticum • Colpomenia peregrina
LOWER INTERTIDAL ZONE • DIVISION RHODOPHYTA • CLASS RHODOPHYCEAE • Plocamium cartilagineum • Asparagopsis armata • Halopithys incurva • Gelidium sesquipedale • Chondrus crispus • Jania rubens • Corallina officinalis • Lithophyllum incrustans • Gelidium attenuatum
LOWER INTERTIDAL ZONE • DIVISION CHLOROPHYTA • CLASS CODIACEAE • Codium adhaerens • CLASS ULVACEAE • Ulva rigida
MID INTERTIDAL ZONE • DIVISION HETEROKONTOPHYTA • CLASS PHAEOPHYCEAE • Ralfsia verrucosa
MID INTERTIDAL ZONE • DIVISION RHODOPHYTA • CLASS RHODOPHYCEAE • Hildebrandia prototypus
Middle Intertidal Zone • DIVISION CHLOROPHYTA • CLASS CHLOROPHYCEAE • Enteromorpha intestinalis
Upper Intertidal Zone • Blidingia minima (green) • Pelvetia canaliculata (brown) • Porphyra linearis (red)
Lichens • MID INTERTIDAL ZONE • Lichina pygmaea • SUPRATIDAL ZONE • Verrucaria maura