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green
seaweeds text index | photo
index
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| Seaweeds > Division Chlorophyta |
| Codium
green seaweed Codium sp.* Family Codiaceae updated Aug 10 Where seen? This branching knobbly green seaweed is sometimes seen on our Southern shores growing on coral rubble. May sometimes form a bloom among seagrasses near reefs, e.g., at Pulau Semakau. Features: 6-8cm long. A cluster of thick, cylindrical 'stems' with rounded, knobbly tips. Some form a compact ball of short branches, others a looser clump of longer branches. Some species of Codium also form lumpy blobs attached to hard surfaces. The surface is velvety smooth. Black or dark green to olive. According to AlgaeBase, there are more than 140 current Codium species. Role in the habitat: Some Codium species are eaten by sea turtles. Invasive Codium: Some species of Codium are considered invasive alien introduced species in temperate shores. As these invasive Codium species take root, they displace the native kelp seaweeds and the marine life associated with these seaweeds. These invasive species are believed to have been introduced via attachment to ship hulls, or oyster shells, as fouling organisms in drag nets and packing material for fishery products. Human uses: Some species are used as animal feed and eaten by people. In Korea, they are harvested fresh from the wild and sold in local markets. They are also used as insect repellant. They are reported to have anti-bacterial and anti-tumor properties. |
 Pulau Semakau, Feb 12 |
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 Pulau Semakau, Feb 12 |
Codium green seaweeds on Singapore shores
 Sisters Island, Jan 06  |
 Tuas, Apr 05  |
 Labrador, Apr 10  |
more photos of codium green seaweeds on Singapore shores
northern shores
southern shores part 1 | part 2 | part 3
*Species are difficult to positively identify without close examination of internal parts.
On this website, they are grouped by external features for convenience of display.
| Codium
recorded for Singapore Pham, M. N., H. T. W. Tan, S. Mitrovic & H. H. T. Yeo, 2011. A Checklist of the Algae of Singapore.
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Links
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University of Western Australia Press. 300pp.|
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