AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Perophora viridis [WoRMS] | |
Authority | Verrill, 1871 | |
Family | Perophoridae | |
Order | Phlebobranchia | |
Class | Ascidiacea | |
Phylum | Chordata | |
Synonym (?) | Perophora dellavallei Neppi, 1921 | |
Sub-species level (?) | Not entered |
Native origin (?) | Not known Comments: Cosmopolitan. |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
Comments: P. viridis is a colonial sea squirt with the individual zooids united by a stolon or stem but spaced widely apart. |
Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Asexual Sexual References: Goldin, A. 1948. Regeneration in Perophora viridis. The Biological Bulletin, 94(3), pp. 184-193. |
Developmental trait (?) | Lecithotrophy Comments: Eggs develop into lecithotrophic larva before metamorphosing into benthic adults. |
Characteristic feeding method / Life stage (?) |
Comments: P. viridis is a filter feeder. It draws water in through the buccal siphon and food particles such as bacteria and zooplankton get trapped in a mucus net that lines the pharynx. This gets rolled up and moved along by cilia and passes into the gut where digestion takes place. The anus is near the atrial siphon and waste products get swept out with the exhalent water. |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Unknown Comments: Not available. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers |
Toxicity / Life stage (?) | Unknown Comments: Not available. |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Not known Comments: Not available. |
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 (?) | Unknown References: Mook, D. 1983. Responses of common fouling organisms in the Indian River, Florida, to various predation and disturbance intensities. Estuaries, 6(4), pp. 372-379. Comments: Possible via biofouling. |
Created by | Anna Occhipinti, 2015-02-02 |
Last update by | Sandra Gečaitė, 2024-08-19 |