AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Styela plicata [WoRMS] | |
Authority | (Lesueur, 1823) | |
Family | Styelidae | |
Order | Stolidobranchia | |
Class | Ascidiacea | |
Phylum | Chordata | |
Synonym (?) | Ascidia cuviera (Delle Chiaje, 1841) (misspelling) Ascidia cuvieri (Delle Chiaje, 1841) (original combination) Ascidia patata (Costa, 1844) (original combination) Ascidia phusca (Delle Chiaje, 1828) (original combination) Ascidia plicata (Lesueur, 1823) (original combination) Phallusia sulcata (Delle Chiaje, 1841) (original combination Styela gyrosa (Heller, 1877) (original combination) Styela pinguis (Herdman, 1898) Styela pinguis (Herdman, 1899) (original combination) Tethyum plicata Tethyum plicatum (Lesueur, 1823) (new combination) |
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Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Indian Ocean: Pacific References: Hewitt, C. L., Campbell, M. L., Thresher, R. E., Martin, R. B., Boyd, S., Cohen, B. F., ... & Lockett, M. M. (2004). Introduced and cryptogenic species in port Phillip bay, Victoria, Australia. Marine biology, 144(1), 183-202. Comments: East Asian Seas. Hewitt et al. (2004). |
Life form / Life stage (?) |
References (not structured): Pineda, M. C., López-Legentil, S., Turon, X. 2013. Year-round reproduction in a seasonal sea: biological cycle of the introduced ascidian Styela plicata in the Western Mediterranean. Marine Biology, 160, pp. 221-230. |
Sociability / Life stage (?) |
References (not structured): Pineda, M. C., López-Legentil, S., Turon, X. 2013. Year-round reproduction in a seasonal sea: biological cycle of the introduced ascidian Styela plicata in the Western Mediterranean. Marine Biology, 160, pp. 221-230. Comments: S. plicata is a solitary tunicate with a thick, firm and lumpy tunic which is white or tan in color. |
Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: Yamaguchi, M. 1975. Growth and reproductive cycles of the marine fouling ascidians Ciona intestinalis, Styela plicata, Botrylloides violaceus, and Leptoclinum mitsukurii at Aburatsubo-Moroiso Inlet (Central Japan). Marine Biology, 29, pp. 253-259. Pineda, M. C., López-Legentil, S., Turon, X. 2013. Year-round reproduction in a seasonal sea: biological cycle of the introduced ascidian Styela plicata in the Western Mediterranean. Marine Biology, 160, pp. 221-230. Comments: S. plicata is a protandric hermaphrodite: initially male then later in life becomes female. This allows self fertilisation to be avoided. Fertilisation is external, with eggs and sperm shed into the water column in the late afternoon, larvae hatching the following morning and settling during that day. Some sea squirts can live between 2-3 years. S. plicata reached sexual maturity in 2 months during the summer and 5 months during the winter. S. plicata has an extended breeding season, reproducing all year except during winter. |
Developmental trait (?) | Lecithotrophy Spawning References: Thiyagarajan, V., Qian, P. Y. 2003. Effect of temperature, salinity and delayed attachment on development of the solitary ascidian Styela plicata (Lesueur). Journal of Experimental Marine Biology and Ecology, 290(1), pp. 133-146. Comments: Eggs and sperm shed to the sea in late afternoon and larvae hatch the following morning in midwater and settle during that day. The eggs of Styela plicata (sea squirt) are surrounded by a complex ovular envelope that supplies the larvae with its nutritional requirements. |
Characteristic feeding method / Life stage (?) |
References (not structured): Klarmann, P. A., Scarpa, J., Hartmann, J. X. 2022. Filtration Rate of the Solitary, Pleated Tunicate Styela plicata on the Brown Tide-Forming Pelagophytes Aureoumbra lagunensis and Aureococcus anophagefferens. Frontiers in Marine Science, 9, 866177. Comments: S. plicata feeds on suspended matter such as phytoplankton, zooplankton and organic materials. |
Mobility / Life stage (?) |
References (not structured): Yamaguchi, M. 1975. Growth and reproductive cycles of the marine fouling ascidians Ciona intestinalis, Styela plicata, Botrylloides violaceus, and Leptoclinum mitsukurii at Aburatsubo-Moroiso Inlet (Central Japan). Marine Biology, 29, pp. 253-259. Comments: The different life cycle stages of S. plicata have different habitat requirements for survival. The larval and juvenile stages of S. plicata live on marinas and docks, oyster reefs, rocks and coarse woody debris: adults prefer marinas, docks and hard rocky substrates. S. plicata can also live in coral reef habitats, and is found from the low intertidal zone to depths of 30 metres. Once hatched, the larvae attempt to find a suitable substrate. S. plicata can have an extended swimming period of over 2 days prior to settlement without a cost to metamorphosis . |
Salinity tolerance range (?) | Venice system: 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] Comments: This species can live in a wide range of conditions, in waters from 10° to 30°C and salinities between 22%-34% as well as pollution and brackish water. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers Comments: Styela plicata is a host to several different kinds of organisms, including brittle stars, mussels, chitons, sponges, polychaete worms, diatoms, eggs, etc., that live on its tunic. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Aydın-Önen, S. 2016. Styela plicata: a new promising bioindicator of heavy metal pollution for eastern Aegean Sea coastal waters. Environmental Science and Pollution Research, 23, pp. 21536-21553. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Known References: Santos, P. M., Venâncio, E., Dionísio, M. A., Heumüller, J., Chainho, P., Pombo, A. 2023. Comparison of the Efficiency of Different Eradication Treatments to Minimize the Impacts Caused by the Invasive Tunicate Styela plicata in Mussel Aquaculture. Animals, 13(9), 1541. Comments: Marine pests have the potential to affect fisheries, aquaculture and aquatic tourism industries. Introduced species that become invasive may experience significant population increases and foul marine infrastructure, inhibiting their usage. They may also affect access for Australian seafood products in international markets. |
Known measurable environmental impact? | Not known Comments: Not available. |
Included in the Target Species list? | No References: HELCOM, 2009. Alien Species and Ballast Water [PDF] Available at: https://archive.iwlearn.net/helcom.fi/stc/files/shipping/Table_2_Alienspecies_%20lists_2009.pdf [Accessed 1 July 2024]. |
Association with vessel vectors (?) | Ballast waters Biofouling References: Hewitt, C. L., Campbell, M. L., Thresher, R. E., Martin, R. B., Boyd, S., Cohen, B. F., ... & Lockett, M. M. (2004). Introduced and cryptogenic species in port Phillip bay, Victoria, Australia. Marine biology, 144(1), 183-202. |
Created by | Bella Galil, 2012-01-02 |
Last update by | Sandra Gečaitė, 2024-08-21 |