PORT PHILLIP BAY


Red Seaweed 

Metagoniolithon radiatum

View scientific description and taxonomy

Scientific Details

Main information sources:
Womersley, H.B.S., (1984-2003). The Marine Benthic Flora of Southern Australia. Part 1-3d. Govt. Printer, South Australia.
Baldock, R.N. 2010. Algae Revealed. South Australian State Herbarium. Website.
AlgaeBase. Website.

Taxonomy

Phylum:
Rhodophyta
Subphylum:
Eurhodophytina
Class:
Florideophyceae
Subclass:
Corallinophycidae
Order:
Corallinales
Family:
Corallinaceae
Subfamily:
Metagoniolithoideae
Genus:
Metagoniolithon
Species:
radiatum

General Description

Multi-branched and segmented with short clustered branches (tuft-like) arising from non-calcified joints (geniculata). Holdfast is a calcified crust (calcium-carbonate encrusted). Medium red-light brown. Up to 15 cm long (thallus).

Biology

This alga often grows attached to seagrasses and other algae.

Habitat

Intertidal and subtidal rocky reefs, moderate-rough wave action, to depth of 32 m.

Reefs

Seagrass meadows

Coastal shores

Distribution guide

South America, Pacific Islands and Australia.

Species Group

Seaweeds and seagrasses Red algae

Depth

Shore (0-1 m)
Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

15 cm

Diet

Photosynthetic - sunlight

Commercial Species

No

Global Dispersal

Recorded in Australia

Identify

Conservation Status

  • DSE Advisory List : Not listed
  • EPBC Act 1999 : Not listed
  • IUCN Red List : Not listed

Author

article author Pocklington, Jacqui

Jacqui Pocklington is a Research Associate with expertise in algal taxonomy.

citation

Cite this page as:
Pocklington, Jacqui, 2011, Red Seaweed, Metagoniolithon radiatum, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 18 Dec 2017, http://portphillipmarinelife.net.au:8098/species/11140

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