AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Pseudopolydora paucibranchiata [WoRMS] | |
Authority | (Okuda, 1937) | |
Family | Spionidae | |
Order | Spionida | |
Class | Polychaeta | |
Phylum | Annelida | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Pacific --> Ocean region: NE Pacific --> Ocean region: NW 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. |
Life form / Life stage (?) |
Comments: P. paucibranchiata is an estuarine spionid polychaete, which dwells in mud and mucus tubes in sediment, and in fouling communities on hard surfaces. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: Blake, J. A., Woodwick, K. H. 1975. Reproduction and larval development of Pseudopolydora paucibranchiata (Okuda) and Pseudopolydora kempi (Southern)(Polychaeta: Spionidae). The Biological Bulletin, 149(1), pp. 109-127. |
Developmental trait (?) | Lecithotrophy Planktotrophy References: Blake, J. A., Woodwick, K. H. 1975. Reproduction and larval development of Pseudopolydora paucibranchiata (Okuda) and Pseudopolydora kempi (Southern)(Polychaeta: Spionidae). The Biological Bulletin, 149(1), pp. 109-127. Comments: The sexes are separate. Males and females mature at about 30-35 mm. Eggs are laid in capsules, linked in strings attached to the interior of the tubes. Capsules in California and Japanese estuaries contained up to 35-50 eggs, with 7-10 capsules on a string. Larvae are released from the capsules at the 3-chaetiger stage, and feed in the plankton. |
Characteristic feeding method / Life stage (?) |
Comments: Adults of P. paucibranchiata are capable of shifting between deposit-feeding detritus and surface-microalgae to suspension-feeding (phytoplankton and suspended particles). Their ciliated palps can either stretch over the sediment surface to pick up sediment particles, or wave in the current to pick up phytoplankton. |
Mobility / Life stage (?) |
References (not structured): Radashevsky, V. I., Malyar, V. V., Pankova, V. V., Gambi, M. C., Giangrande, A., Keppel, E., ... Carlton, J. T. 2020. Disentangling invasions in the sea: molecular analysis of a global polychaete species complex (Annelida: Spionidae: Pseudopolydora paucibranchiata). Biological Invasions, 22(12), pp. 3621-3644. |
Salinity tolerance range (?) | Venice system: 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References: Smithsonian Environmental Research Center. (n.d.). Pseudopolydora paucibranchiata - Species summary. National Exotic Marine and Estuarine Species Information System (NEMESIS). Retrieved August 19, 2024, from https://invasions.si.edu/nemesis/species_summary/66933 |
Habitat modifying ability potential (?) | Allogenic ecosystem engineers References: Radashevsky, V. I., Malyar, V. V., Pankova, V. V., Gambi, M. C., Giangrande, A., Keppel, E., ... Carlton, J. T. 2020. Disentangling invasions in the sea: molecular analysis of a global polychaete species complex (Annelida: Spionidae: Pseudopolydora paucibranchiata). Biological Invasions, 22(12), pp. 3621-3644. Comments: Adults of P. paucibranchiata build silty tubes and often form dense populations in soft sediments in shallow waters. |
Toxicity / Life stage (?) | Not relevant |
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: It may have some ability to displace native species in stressful environments, but it is not regarded as a strong 'pollution indicator' to the same extent as Polydora cornuta. |
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 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. |
Last update by | Sandra Gečaitė, 2024-08-19 |