Red algae

The red pigment, phycoerythrin, distinguishes this group of algae which can range in colour from pink to iridescent magenta. Red seaweeds exhibit a stunning range of forms including unbranched and branched filaments, netlikesheets, crusts, calcified, branched fronds and delicate, fleshy, gelatinous or leathery fronds.


Asparagopsis taxiformis

common name: iodine weed
features: densely tufted plants, 0.5-2 cm tall forming a turf of branched filaments 40-60 µm in diameter. A. taxiformis can also be found growing as a large (10-30cm), red plume, and is the alternate stage in the life cycle to the turf form.
habitat: on rocky shores in Moreton Bay and adjacent, wave exposed coasts.
blooms: known from the Maroochy River and Caloundra in late summmer/early autumn.

Laurencia spp.

common name: none
features: thallus erect to 20 cm high or forming turfs, with many cylindrical or compressed branches 0.5-4 mm in diameter. Branch tips are truncated and have a pit bearing protruding colourless hairs, a characteristic of the genus. More than 20 species of Laurencia occur in South East Queensland.
habitat: common in the mid to lower intertidal to subtidal zones in sheltered to wave exposed coasts.
blooms: These common species are often found in drifts.