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green seaweed
Ulva rigida
-38.5842, 145.511
Field Notes
Description:
These bunches of bright green algae were seen clinging to rocks in pools along the tidal zone. Whole fronds were soft with thin filmy flat blades.
Habitat:
Intertidal zone-beach on Bass Strait
Notes:
Last year all of the rocks along this beach were covered with this green algae, especially along the mouth of the river. This year I found just little pockets of this algae.
This sea weed is used as a sea vegetable by many island populations and is harvested for cosmetics. If nutrient level increases in water due to pollution, their growth increases to a "nuisance" level where they form green macroalgal blooms.
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