seen? This flat strap-like brown seaweed is sometimes seen
on many of our shores, often anchored in bare sand.
Features: A bunch of several to
many strap-like blades about 1-2cm wide and 10-15cm long, branching
on one plane forming Y-shapes with rounded or squarish tips. The seaweed
does not have a prominent midrib or vein. Usually a plain translucent
brown. In some, the entire clump comprises a few long strands. In
others, there are many short strands forming a dense clump.
According to AlgaeBase,
there are more than 70 current Dictyota species.
Human uses: Strap brown seaweed
is eaten by people and used as animal feed, medicine for its antibacterial
properties. Dictyota dichotoma is
also used to make beer, frozen food, fruit juices, ice cream, jellies,
in meat and flavour sauces, milk shakes, pastries and salad dressings.
Extracts from it are also used in industry as emulsifiers, gelling
Labrador, Apr 05
Berlayar Creek, Feb 12
Tuas, Jun 05
Sentosa, Jun 07
Pulau Sekudu, Aug 06
Changi, Jul 06
Changi, Apr 05
*Seaweed species are
difficult to positively identify without microscopic examination.
On this website, they are grouped by external features for convenience of
brown seaweed on Singapore shores
species recorded for Singapore
Pham, M. N.,
H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of
the Algae of Singapore.
(Bluish y-branch brown seaweed)
Dictyota dichotoma var. intricata
- Pham, M.
N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A
Checklist of the Algae of Singapore (pdf). Raffles Museum
of Biodiversity Research, National University of Singapore, Singapore.
100 pp. Uploaded 1 August 2011.
H. P. & Menez, E. G., 1997.Field
Guide to the Common Mangroves, Seagrasses and Algae of the Philippines.
Bookmark, Inc., the Philippines. 197 pp.
John M. 2000. Marine
Plants of Australia
University of Western Australia Press. 300pp.
- Trono, Gavino.
C. Jr., 1997. Field
Guide and Atlas of the Seaweed Resources of the Philippines..
Bookmark, Inc., the Philippines. 306 pp.