PORT PHILLIP BAY


Brown Seaweed 

Dictyopteris muelleri

View scientific description and taxonomy

Scientific Details

Similar to Dictyopteris australis, but has hair-tufts arranged in a random scatter in comparison to the inverted "V" pattern in D. australis. Somewhat similar in appearance to Carpoglossum confluens but much thinner, has a mid-rib and less branch divisions.

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:
Dictyotales
Family:
Dictyotaceae
Genus:
Dictyopteris
Species:
muelleri

General Description

Flattened thin central stalk (stipe) with distinctive mid-rib, broad flattened (thin) branches arising in an almost equal divisions (sub-dichotomous) from the main stalk on one plane. Often distinctly spotted all over with clusters of reproductive structures (sori) and tiny hair tufts on surface. Holdfast is matted and rhizoidal. Medium to dark brown (light brown at depth, green-brown as drift). Up to 40 cm long (thallus).

Biology

This is the common species of Dictyopteris algae in southern Australia.

Habitat

Subtidal rocky reef and rock pools in rough waters, to depth of 37 m.

Reefs

Distribution guide

India, Indonesia and Australia.

Species Group

Seaweeds and seagrasses Brown algae

Depth

Shallow (1-30 m)

Water Column

On or near sea floor

Max Size

40 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, Brown Seaweed, Dictyopteris muelleri, in Taxonomic Toolkit for marine life of Port Phillip Bay, Museum Victoria, accessed 30 Mar 2017, http://portphillipmarinelife.net.au:8098/species/11143

Text: creative commons cc by licence