AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Clavelina oblonga [WoRMS] | |
Authority | Herdman, 1880 | |
Family | Clavelinidae | |
Order | Aplousobranchia | |
Class | Ascidiacea | |
Phylum | Chordata | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Atlantic --> Ocean region: W Tropical Atlantic Comments: Bermuda and Caribbean |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
References (not structured): Ordóñez, V., Pascual, M., Fernández-Tejedor, M., Turon, X. 2016. When invasion biology meets taxonomy: Clavelina oblonga (Ascidiacea) is an old invader in the Mediterranean Sea. Biological Invasions, 18, pp. 1203-1215. Comments: A tunicate that forms large colonies. |
Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Asexual Sexual References: Ordóñez, V., Pascual, M., Fernández-Tejedor, M., Turon, X. 2016. When invasion biology meets taxonomy: Clavelina oblonga (Ascidiacea) is an old invader in the Mediterranean Sea. Biological Invasions, 18, pp. 1203-1215. |
Developmental trait (?) | Brooding Viviparous |
Characteristic feeding method / Life stage (?) |
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Mobility / Life stage (?) |
References (not structured): Ordóñez, V., Pascual, M., Fernández-Tejedor, M., Turon, X. 2016. When invasion biology meets taxonomy: Clavelina oblonga (Ascidiacea) is an old invader in the Mediterranean Sea. Biological Invasions, 18, pp. 1203-1215. |
Salinity tolerance range (?) | Venice system: 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References: Majnarić, N., Pavičić-Hamer, D., Jaklin, A., Hamer, B. 2022. Susceptibility of invasive tunicates Clavelina oblonga to reduced seawater salinities. Aquaculture reports, 27, 101402. Comments: Salinities of 37 and 30 didn’t provoke any significant effect in colonial corpus weight change and morphology. Salinities of 20 and 11 caused disorder in specimens feed uptake and feeding itself which led to change of colour, tissue necrosis and finally body fragmentation. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Ordóñez, V., Pascual, M., Fernández-Tejedor, M., Turon, X. 2016. When invasion biology meets taxonomy: Clavelina oblonga (Ascidiacea) is an old invader in the Mediterranean Sea. Biological Invasions, 18, pp. 1203-1215. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Known Comments: Harmless. |
Known economic impact? | Not known Comments: Not available. |
Known measurable environmental impact? | Known References: Goddard-Dwyer, M., López-Legentil, S., Erwin, P. M. 2021. Microbiome variability across the native and invasive ranges of the ascidian Clavelina oblonga. Applied and Environmental Microbiology, 87(2), e02233-20. Comments: C. oblonga hosted a diverse microbial community consisting of 42 bacterial phyla and 3 archaeal phyla, as well as 163 operational taxonomic units. |
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: Da Rocha, R. M., Kremer, L. P., Fehlauer-Ale, K. H. 2012. Lack of COI variation for Clavelina oblonga (Tunicata, Ascidiacea) in Brazil: Evidence for its human-mediated transportation?. Aquatic Invasions, 7(3). Comments: Although C. oblonga was found both on artificial and natural rocky substrates, it was never reported from boat hulls. |
Last update by | Sandra Gečaitė, 2024-08-06 |