PORT PHILLIP BAY


Brown Seaweed 

Cystophora platylobium

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:
Cystophora
Species:
platylobium

General Description

Distinctive flattened stalk. Long, zig-zag, flattened central stalk (stipe) with flattened branches arising at point of zig-zag in an alternate pattern on one plane (two-dimensional). Flattened secondary branches (laterals) continue zig-zag pattern on one-plane but less obvious than on main stalk. Blades (ramuli) are flat and tear shaped with short stem at base arising at point of zig-zag on secondary branches also in alternate pattern. Holdfast at base is simple disc. Can have floats (vesicles) that are round to oval in shape. Medium brown. Up to 2 m long (thallus).

Biology

This is considered a very distinctive species due to its tear shaped blades, flattened form and strong single plane zig-zag branching pattern. It is one of the deep water species of algae.

Habitat

Subtidal rocky reefs with rough wave action, at depths between 10 to 44 m.

Reefs

Distribution guide

New Zealand and Australia.

Species Group

Seaweeds and seagrasses Brown algae

Depth

Shallow (1-30 m)
Deep ( > 30 m)

Water Column

On or near sea floor

Max Size

2 m

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, Brown Seaweed, Cystophora platylobium, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 26 Jul 2017, http://portphillipmarinelife.net.au:8098/species/11135

Text: creative commons cc by licence