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Trididemnum sp.

Georgina Walker (2013)

 

 

Fact Sheet

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Summary


Physical Description


Ecology


Life History & Behaviour


Anatomy & Physiology


Evolution & Systematics


Biogeographic Distribution


Conservation & Threats


References & Links

Summary

This webpage will detail characteristics of Trididemnum sp. including its anatomy, life history, taxonomy, behaviour and distribution. Following an experiment started at Heron Island Research Station and completed at the University of Queensland (St Lucia Campus), its symbiotic relationship with Prochloron will be described. 

Ascidians are sessile marine animals that occur throughout the world’s oceans (Hirose et al, 2006). Ascidian species have highly diverse life histories, reproductive strategies and internal orgnaisation. Some species are colonial while others are solitary. There are few reliable morphological characteristics of zooids due to their small size and uniformity (Memoirs of the Australian Museum, 2001). Consequently, the ascidian described on this webpage, was only identified down to genus level. The species belongs to the Didemnidae family, genus Trididemnum. It is a colonial, compound species.

The green colouration of the colony is due to the presence of the photosynthetic bacterium Prochloron. Prochloron lives in obligate symbiosis with Didemnid ascidians (Munchoff et al, 2007).

Classification

Minimize
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnum areolatum (Herdman, 1906)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Trididemnum africanum (Michaelsen, 1915)
Trididemnum luderitzi (Michaelsen, 1919)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnum cereum (Giard, 1872)
Didemnum niveum (Giard, 1872)
Didemnum sargassicola (Giard, 1872)
Trididemnum fallax ((Lahille, 1890))
Trididemnum graphicum (Lahille, 1890)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Trididemnum symbioticum (Peres, 1962)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnopsis jolense (Van Name, 1918)
Leptoclinum discrepans (Sluiter, 1909)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnum dispersum (Sluiter, 1909)
Trididemnum tegulum (Kott, 1984)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnum farrago (Kott, 2004)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnoides inarmata ((Drasche, 1883))
Didemnopsis inarmata ((Drasche, 1883))
Didemnum inarmatum (Drasche, 1883)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Leptoclinum marmoratum (Sluiter, 1909)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnopsis microzoa (Redikorzev, 1913)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Trididemnum nube (Monniot F., 1991)
Kingdom
Animalia
Phylum
Chordata
Class
Ascidiacea
Order
Aplousobranchia
Family
Didemnidae
Genus
Trididemnum

Synonyms

Didemnum opacum (Ritter, 1907)
Trididemnum dellavallei (Ritter & Forsyth, 1917)
Trididemnum dellavalley (Ritter & Forsyth, 1917)

Images

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