PORT PHILLIP BAY


Brown Seaweed 

Caulocystis cephalornithos

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:
Ochrophyta
Subphylum:
Phaeista
Superclass:
Fucistia
Class:
Phaeophyceae
Order:
Fucales
Family:
Sargassaceae
Genus:
Caulocystis
Species:
cephalornithos

General Description

Resembles a bottle brush. Short round central stalk (stipe) with multiple primary branches with short tooth-like projects at base where branchlets (ramuli) have broken off (often continuing high on branch). Branchlets can be simple or multi-branched occurring in a whorled pattern along the primary branches. This species can have both round and oval (tapering at each end) floats (vesicles). Holdfast at base is a simple and disc shaped. Medium to dark brown. Up to 60 cm long (thallus).

Biology

This alga was recently reclassified into the same species as Caulocystis uvifera from the results of genetic research at the University of South Australia (Soisup).

Habitat

Subtidal rocky reefs and tidal pools, in shallow areas (low-tide level) to deep water with slight-moderate water movement, to depth of 5 m.

Reefs

Coastal shores

Distribution guide

Australia.

Species Group

Seaweeds and seagrasses Brown algae

Depth

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

Water Column

On or near sea floor

Max Size

60 cm

Diet

Photosynthetic - sunlight

Commercial Species

No

Global Dispersal

Native to 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, Brown Seaweed, Caulocystis cephalornithos, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 30 Mar 2017, http://portphillipmarinelife.net.au:8098/species/11139

Text: creative commons cc by licence