ALGAE Division CHLOROPHYTA Division HETEROKONTOPHYTA Division RHODOPHYTA DIVISION

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: - 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 HETEROKONTOPHYTA CLASS 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 RHODOPHYTA CLASS 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