AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Polydora ciliata [WoRMS] | |
Authority | (Johnston, 1838) | |
Family | Spionidae | |
Order | Spionida | |
Class | Polychaeta | |
Phylum | Annelida | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Atlantic --> Ocean region: NE Atlantic |
Life form / Life stage (?) |
References (not structured): Waser, A. M., Knol, J., Dekker, R., Thieltges, D. W. 2021. Invasive oysters as new hosts for native shell-boring polychaetes: Using historical shell collections and recent field data to investigate parasite spillback in native mussels in the Dutch Wadden Sea. Journal of Sea Research, 175, 102086. Comments: The invasion of the Pacific oyster has diverse effects on native parasite-host interactions and among those is a potential spillback of the shell-boring polychaete Polydora ciliata to native molluscs. This worm is a shell parasite that drills holes in the shells of epibenthic bivalves and gastropods, and infected organisms have to spend energy on repairing these holes. P. ciliata is a polydorid polychaete (Spionidae) with a pelagic larval stage and has probably a preference for mollusc hosts inhabiting the lower intertidal and subtidal. |
Sociability / Life stage (?) |
|
Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: Wilson, W. H. 1991. Sexual reproductive modes in polychaetes: classification and diversity. Bulletin of Marine Science, 48(2), pp. 500-516. Comments: The worms are either male or female; sperm is liberated into the water column and drawn into the burrow of the female by means of the respiratory current. Up to 60 eggs are enclosed in a capsule, and several capsules are suspended by threads inside the female's tube. |
Developmental trait (?) | Brooding References: Wilson, W. H. 1991. Sexual reproductive modes in polychaetes: classification and diversity. Bulletin of Marine Science, 48(2), pp. 500-516. Comments: The eggs hatch in about one week and are planktonic for up to six weeks before settling. When the worms bore into the shells of oysters, mussels and periwinkles, they do not feed on the mollusc's soft parts, but they weaken the shell and make the mollusc more vulnerable to attack by crabs and other predators. |
Characteristic feeding method / Life stage (?) |
References (not structured): Almeda, R., Pedersen, T. M., Jakobsen, H. H., Alcaraz, M., Calbet, A., Hansen, B. W. 2009. Feeding and growth kinetics of the planktotrophic larvae of the spionid polychaete Polydora ciliata (Johnston). Journal of Experimental Marine Biology and Ecology, 382(1), pp. 61-68. Comments: When feeding, the worm extends its head out of the tube and uses its two long palps to feed on detritus. It has been observed feeding on dead barnacles and other small dead invertebrates, and can also filter plankton from the water. |
Mobility / Life stage (?) |
References (not structured): Hansen, B. W., Jakobsen, H. H., Andersen, A., Almeda, R., Pedersen, T. M., Christensen, A. M., Nilsson, B. 2010. Swimming behavior and prey retention of the polychaete larvae Polydora ciliata (Johnston). Journal of Experimental Biology, 213(18), pp. 3237-3246. Dorsett, D. A. 1961. The behaviour of Polydora ciliata (Johnst.). Tube-building and burrowing. Journal of the marine biological association of the United Kingdom, 41(3), pp. 577-590. Comments: The burrow of P. ciliata is U-shaped, and the presence of these worms can be recognised by the sets of small, double perforations they make. The worm is believed to burrow by abrading the substrate with its bristly chaetae, but there may also be some chemical action involved in burrowing. |
Salinity tolerance range (?) | Unknown References: De-Bastos, E. S. R., Hill, J. 2016. Polydora ciliata and Corophium volutator in variable salinity infralittoral firm mud or clay. Comments: Polydora ciliata is an euryhaline species inhabiting fully marine and estuarine habitats. In an area of the western Baltic Sea, where bottom salinity was between 11.1 and 15.0 psu, Polydora ciliata was the second most abundant species. |
Habitat modifying ability potential (?) | Allogenic ecosystem engineers References: Dorsett, D. A. 1961. The behaviour of Polydora ciliata (Johnst.). Tube-building and burrowing. Journal of the marine biological association of the United Kingdom, 41(3), pp. 577-590. Comments: Polydora ciliata is a spionid polychaete found below mid-tidal level burrowing in a variety of rocks all of which contain calcium carbonate. It can also penetrate some non-calcareous materials such as rotten wood. It excavates a U-shaped burrow which it lines with a tube composed of mucoprotein and sand grains. |
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? | Known References: Noji, C. I. M. 1994. Influence of the tube-building spionid polychaete Polydora ciliata on benthic parameters, associated fauna and transport processes. Memoires Du Museum National D’Histoire Naturelle, 162, pp. 493-502. Kent, R. M. L. 1981. The effect of Polydora ciliata on the shell strength of Mytilus edulis. ICES journal of marine science, 39(3), pp. 252-255. Comments: Polydora tube lawns significantly increased abundance and diversity meio- and macrofauna. Polydora ciliata infestation tended to weaken the shells of Mytilus edulis. |
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) |
Association with vessel vectors (?) | Ballast waters References: Gollasch S, Macdonald E, Belson S, Botnen H, Christensen JT, Hamer JP, Houvenaghel G, Jelmert A, Lucas I, Masson D, McCollin T, Olenin S, Persson A, Wallentinus I, Wetsteyn LPMJ, Wittling T (2002) Life in Ballast Tanks In: Invasive aquatic species of Europe - distribution, impact and management. Leppäkoski, E., S. Gollasch & S. Olenin (eds). Kluwer Academic Publishers: 217-231 http://www.corpi.ku.lt/nemo/aqua_app_gollasch.pdf |
Molecular information | Available NCBI (https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?term=Polydora+ciliata) |
Last update by | Sandra Gečaitė, 2024-07-23 |