AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Amathia verticillata [WoRMS] | |
Authority | (delle Chiaje, 1822) | |
Family | Vesiculariidae | |
Order | Ctenostomatida | |
Class | Gymnolaemata | |
Phylum | Bryozoa | |
Synonym (?) | Hyalosiphonia verticillatus (Delle Chiaje, 1822) Hydra verticillata (Delle Chiaje, 1828) (basionym) Zoobotryon pellucidus (Ehrenberg, 1829) Zoobotryon verticillatum (Delle Chiaje, 1822) |
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Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Atlantic --> Ocean region: W Tropical Atlantic References (not structured): Galil, B. S., & Gevili, R. (2014). Zoobotryon verticillatum (Bryozoa: Ctenostomatida: Vesiculariidae), a new occurrence on the Mediterranean coast of Israel. Marine Biodiversity Records, 7, 1. |
Life form / Life stage (?) |
References (not structured): Occhipinti Ambrogi, A. (1981). Briozoi lagunari. In: Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane, vol. 7. Consiglio nazionale delle ricerche. 147 pp. |
Sociability / Life stage (?) |
References (not structured): Occhipinti Ambrogi, A. (1981). Briozoi lagunari. In: Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane, vol. 7. Consiglio nazionale delle ricerche. 147 pp. Comments: Eggs develop in the polypide |
Reproductive frequency (?) | Semelparous References (not structured): Occhipinti Ambrogi, A. (1981). Briozoi lagunari. In: Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane, vol. 7. Consiglio nazionale delle ricerche. 147 pp. Comments: Eggs develop in the polypide, which degenerates after release of the larva |
Reproductive type (?) | Asexual Sexual References: Occhipinti Ambrogi, A. (1981). Briozoi lagunari. In: Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane, vol. 7. Consiglio nazionale delle ricerche. 147 pp. Zirpolo G. (1922) Contributo alla conoscenza del ciclo biologico del Zoobotryon pellucidum Ehrbg. Monitore Zoologico Italiano 32, 128 – 134 Comments: Colony grows by gemmation. Fragments of colonies might be transported by currents and attach to new substrata. New colonies result from sexual reproduction. |
Developmental trait (?) | Brooding Lecithotrophy References: Occhipinti Ambrogi, A. (1981). Briozoi lagunari. In: Guide per il riconoscimento delle specie animali delle acque lagunari e costiere italiane, vol. 7. Consiglio nazionale delle ricerche. 147 pp. Zirpolo G. (1922) Contributo alla conoscenza del ciclo biologico del Zoobotryon pellucidum Ehrbg. Monitore Zoologico Italiano 32, 128 – 134 Comments: Short-lived larva of trochophora type. |
Characteristic feeding method / Life stage (?) |
References (not structured): Bullivant, J. S. (1968). The rate of feeding of the bryozoan, Zoobotryon verticillatum. New Zealand Journal of Marine and Freshwater Research, 2(1), 111-134. Comments: suspension-feeder feeding organs |
Mobility / Life stage (?) |
References (not structured): Zirpolo G. (1922) Contributo alla conoscenza del ciclo biologico del Zoobotryon pellucidum Ehrbg. Monitore Zoologico Italiano 32, 128 – 134 Minchin, D. (2012). Rapid assessment of the bryozoan,Zoobotryon verticillatum (Delle Chiaje, 1822) in marinas, Canary Islands. Marine pollution bulletin, 64(10), 146-215. |
Salinity tolerance range (?) | Venice system: 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References: Occhipinti Ambrogi, A., & d'Hondt, J. L. (1981). Distribution of bryozoans in brackish waters of Italy. Recent and Fossil Bryozoa, Olsen and Olsen, Fredensborg, 191-198. Comments: generally restricted to salinities >30 ppt, occasionally in lagoons, where it doesn't form a significant part of the fauna |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Wirtz, P., & Canning-Clode, J. (2009). The invasive bryozoan Zoobotryon verticillatum has arrived at Madeira Island. Aquatic Invasions, 4(4), 669-670. Comments: It may overgrowht and smother local fauna and flora, clog seawater pipes, and affect navigation. |
Toxicity / Life stage (?) | Not relevant References: Santos, L. A. D., Clavico, E. E., Parra, L. L., Berlinck, R. G., Ferreira, A. G., Paul, V. J., Pereira, R. C. 2017. Evaluation of chemical defense and chemical diversity in the exotic bryozoan Amathia verticillata. Journal of the Brazilian Chemical Society, 28(03), pp. 435-442. Comments: Amathia verticillata is an erect, soft-bodied bryozoan that produces or accumulates brominated indole alkaloids such as 2,5,6-tribromo-N-methylgramine. This compound acts as an antifouling agent, inhibiting larval settlement of the barnacle Balanus amphitrite and settlement of the blue mussel Mytilus edulis. |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Known Comments: Harmless. |
Known economic impact? | Known References: McCann, L., Keith, I., Carlton, J., Ruiz, G., Dawson, T., Collins, K. 2015. First record of the non-native bryozoan Amathia (= Zoobotryon) verticillata (delle Chiaje, 1822)(Ctenostomata) in the Galápagos Islands. BioInvasions Records, 4(4), pp. 255-260. Jebakumar, J. P. P., Nandhagopal, G., RajanBabu, B., Ragumaran, S., Ravichandran, V., Marchini, A., Minchin, D. 2017. The bryozoan Amathia verticillata (delle Chiaje, 1822) fouling harbours of the southeast coast of India: re-evaluating its status. BioInvasions records., 6(3), pp. 211-216. Comments: A. verticillata has long been known to create fouling problems by attaching to the bottoms of ships and harbour structures. |
Known measurable environmental impact? | Known References: Jebakumar, J. P. P., Nandhagopal, G., RajanBabu, B., Ragumaran, S., Ravichandran, V., Marchini, A., Minchin, D. 2017. The bryozoan Amathia verticillata (delle Chiaje, 1822) fouling harbours of the southeast coast of India: re-evaluating its status. BioInvasions records., 6(3), pp. 211-216. Comments: In San Diego Bay, colonies of the species were found to grow epiphytically on leaves of eelgrass (Zostera marina Linnaeus, 1753), often killing the plant and creating gaps in the seagrass canopy, which were later colonized by other algal species. |
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 (?) | Biofouling References: Minchin, D. (2012). Rapid assessment of the bryozoan,Zoobotryon verticillatum (Delle Chiaje, 1822) in marinas, Canary Islands. Marine pollution bulletin, 64(10), 146-215. Occhipinti Ambrogi, A., & d'Hondt, J. L. (1981). Distribution of bryozoans in brackish waters of Italy. Recent and Fossil Bryozoa, Olsen and Olsen, Fredensborg, 191-198. Comments: seen on boat hulls |
Last update by | Sandra Gečaitė, 2024-08-01 |