Editing Houtman Abrolhos (section)

==Marine flora==

===Algae===
260 species of [[benthic]] [[algae]] have been recorded at the Houtman Abrolhos. This figure comprises 178 species of [[red algae]] (Rhodophyta), 50 species of [[brown algae]] (Phaeophyta) and 32 species of [[green algae]] (Chlorophyta). Both temperate and tropical species are present, in many cases near the northern or southern extent of their range.<ref name="Huisman 1997">{{cite book | author = Huisman, John M. | year = 1997 | chapter = Marine benthic algae of the Houtman Abrolhos Islands, Western Australia | pages = 177–237 | editor = Wells, F. E. | title = The marine flora and fauna of the Houtman Abrolhos Islands, Western Australia: Volume 1 | publisher = Western Australian Museum | isbn = 978-0-7309-8553-2}}</ref> For a full list, see [[list of algae of the Houtman Abrolhos]].

===Seagrass===
Only ten species of seagrass have been recorded at the Houtman Abrolhos. Seven of these are temperate species at or near the northern limit of their range; the other three have a tropical distribution. That there are so few tropical species may be due to periods of low sea temperatures, or the small areas of suitable habitat at the Abrolhos; alternatively it may be that more collecting effort is needed in habitats that suit tropical species. The seagrass species recorded at the Houtman Abrolhos islands are:<ref name="Brearley 1997">{{cite book | author = Brearley, Anne | year = 1997 | chapter = Seagrasses and isopod borers from the Wallabi Islands, Houtman Abrolhos Islands, Western Australia | pages = 63–73 | editor = Wells, F. E. | title = The marine flora and fauna of the Houtman Abrolhos Islands, Western Australia: Volume 1 | publisher = Western Australian Museum | isbn = 978-0-7309-8553-2}}</ref>
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* ''[[Amphibolis antarctica]]''
* ''[[Amphibolis griffithii]]''
* ''[[Halophila decipiens]]''
* ''[[Halophila ovalis]]''
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* ''[[Posidonia angustifolia]]''
* ''[[Posidonia australis]]''
* ''[[Posidonia coriacea]]''
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* ''[[Posidonia sinuosa]]''
* ''[[Syringodium isoetifolium]]''
* ''[[Thalassodendron pachyrhizum]]''
|}