AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Ruditapes philippinarum [WoRMS] | |
Authority | (Adams & Reeve, 1850) | |
Family | Veneridae | |
Order | Venerida | |
Class | Bivalvia | |
Phylum | Mollusca | |
Synonym (?) | Tapes (Ruditapes) philippinarum (Adams & Reeve, 1850) Tapes denticulatus (Sowerby, 1852) Tapes ducalis (Römer, 1870) Tapes philippinarum (Adams & Reeve, 1850) Tapes semidecussatum (Reeve, 1864) |
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Sub-species level (?) | Not entered |
Native origin (?) | Country: China --> LME: 36. South China Sea --> LME: 47. East China Sea Country: Japan --> LME: 47. East China Sea --> LME: 49. Kuroshio Current --> LME: 52. Sea of Okhotsk Country: Philippines --> LME: 36. South China Sea Country: China --> LME: 48. Yellow Sea; LME sub-region: Yellow Sea Country: Japan --> LME: 50. Sea of Japan / East Sea; LME sub-region: Sea of Japan References (not structured): NOBANIS - European Network on Invasive Species FAO: http://www.fao.org/fishery/culturedspecies/Ruditapes_philippinarum/en |
Life form / Life stage (?) |
References (not structured): Jones GG, Sanford CL, Jones BL (1993) Manila Clams: Hatchery and Nursery Methods. Innovative Aquaculture Products Ltd. Skerry Bay Lasqueti Island B.C. Canada |
Sociability / Life stage (?) |
References (not structured): Jones GG, Sanford CL, Jones BL (1993) Manila Clams: Hatchery and Nursery Methods. Innovative Aquaculture Products Ltd. Skerry Bay Lasqueti Island B.C. Canada |
Reproductive frequency (?) | Iteroparous References (not structured): Ponurovsky SK, Yakovlev Yu M (1992) The reproductive biology of the japanese littleneck, Tapes Philippinarum. Journal of Shellfish Research, Vol. 11, No. 2, 265-277 |
Reproductive type (?) | Sexual References: Jones GG, Sanford CL, Jones BL (1993) Manila Clams: Hatchery and Nursery Methods. Innovative Aquaculture Products Ltd. Skerry Bay Lasqueti Island B.C. Canada Comments: The sexes are separate and sexual maturity is generally attained when the clams are about 20 mm. |
Developmental trait (?) | Planktotrophy Spawning References: Jones GG, Sanford CL, Jones BL (1993) Manila Clams: Hatchery and Nursery Methods. Innovative Aquaculture Products Ltd. Skerry Bay Lasqueti Island B.C. Canada |
Characteristic feeding method / Life stage (?) |
References (not structured): Jones GG, Sanford CL, Jones BL (1993) Manila Clams: Hatchery and Nursery Methods. Innovative Aquaculture Products Ltd. Skerry Bay Lasqueti Island B.C. Canada Breber P (2002) Introduction and acclimatisation of the Pacific carpet clam Tapes philippinarum, to Italian waters. In: Invasive aquatic species of Europe. Distribution, impacts and management [ed. by Leppakoski, E. \Gollasch, S. \Olenin, S.]. Dordrecht, The Netherlands: Kluwer, 120-126 Comments: Breber (2002) observed that while larval and juvenile Manila clams take their diatom diet from the plankton, adults appear to be dependent on benthic diatoms which grow as a film on the sediment. Nevertheless clams can be maintained in the laboratory on the basis of suspension feeding. |
Mobility / Life stage (?) |
References (not structured): Jones GG, Sanford CL, Jones BL (1993_ Manila Clams: Hatchery and Nursery Methods. Innovative Aquaculture Products Ltd. Skerry Bay Lasqueti Island B.C. Canada |
Salinity tolerance range (?) | Exact range: 16 - 36 References: Kim W.S., Huh H.T., Huh S.H., Lee T.W., 2001. Effects of salinity on endogenous rhythm of the Manila clam, Ruditapes philippinarum (Bivalvia: Veneridae). Marine Biology. 138:157-162 Comments: It is widley distributed in intertidal zones with a 16-36 salinity range. The clam cannot maintain normal metabolic activity in salinities lower than 15 |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Bartoli M, Nizzoli D, Viaroli P, Turolla E, Castaldelli G, Fano EA, Rossi R (2001) Impact of Tapes philippinarum farming on nutrient dynamics and benthic respiration in the Sacca di Goro. Hydrobiologia, 455:203-212 CIESM (2003) Entry for Ruditapes philippinarum. Atlas of exotic molluscs in the Mediterranean 2003. Pranovi F, Ponte Fda, Raicevich S, Giovanardi O (2004) A multidisciplinary study of the immediate effects of mechanical clam harvesting in the Venice Lagoon. ICES Journal of Marine Science, 61(1):43-52 Sorokin, Giovanardi O, Pranovi F, Sorokin PI (1999) Need for restricting bivalve culture in the southern basin of the Lagoon of Venice. Hydrobiologia, 400:141-148 Varadi L, Szucs I, Pekar F, Blokhin S, Csavas I (2001) Aquaculture development trends in Europe. In: Subasinghe RP, Bueno P, Phillips MJ, Hough C, McGladdery SE, Arthur JR, eds. Aquaculture in the Third Millennium. Technical Proceedings of the Conference on Aquaculture in the Third Millennium, Bangkok, Thailand, 20-25 February 2000. NACA, Bangkok and FAO, Rome. 397-416 Comments: Introduced Ruditapes philippinarum have become naturalized in many areas of Europe, competing with native R. decussatus, limiting their populations and replacing them in some cases (CIESM, 2003). The regional government of Galicia (Spain) has banned the use of Manila clam seed for semi-extensive use on beaches, and several authorities are actively promoting the use of the native clam (Varadi et al., 2000). At high densities Manila clams can affect nutrient dynamics (Bartoli et al., 2001) and alter the abundance of zooplankton, a phenomenon that has led to calls to restrict cultivation in the Venice lagoon (Sorokin et al., 1999). In the same location Pranovi et al. (2006) has estimated the total filtration capacity of the macrobenthos to have been doubled as a result of the Manila clam introduction, with a consequent altering of ecosystem function in terms of stronger benthic-pelagic coupling and reduced resilience. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Zhao, L., Yang, F., Yan, X., Huo, Z., Zhang, G. 2012. Heavy metal concentrations in surface sediments and manila clams (Ruditapes philippinarum) from the Dalian coast, China after the Dalian Port oil spill. Biological trace element research, 149, pp. 241-247. |
Known human health impact? | Known References: Figueira, E., Freitas, R. 2013. Consumption of Ruditapes philippinarum and Ruditapes decussatus: comparison of element accumulation and health risk. Environmental Science and Pollution Research, 20, pp. 5682-5691. Yang, F., Zhao, L., Yan, X., Wang, Y. 2013. Bioaccumulation of trace elements in Ruditapes philippinarum from China: public health risk assessment implications. International Journal of Environmental Research and Public Health, 10(4), pp. 1392-1405. Comments: Bivalves can accumulate high amounts of metals and thus easily reach concentrations that are toxic not only to themselves but also to consumers. Contamination of As in clams may present a potential human health risk. |
Known economic impact? | Known References: Turolla, E., Castaldelli, G., Fano, E. A., Tamburini, E. 2020. Life cycle assessment (LCA) proves that Manila clam farming (Ruditapes philippinarum) is a fully sustainable aquaculture practice and a carbon sink. Sustainability, 12(13), 5252. Comments: The economic impact of Ruditapes philippinarum introduction is generally positive in terms of livelihoods and employment. The clam provides for economic growth in coastal communities through new or increased direct revenue streams from fishing, aquaculture and wholesaling. |
Known measurable environmental impact? | Known References: Bartoli, M., Nizzoli, D., Viarol, P., Turolla, E., Castaldelli, G., Fano, E.A., Rossi, R. 2001. Impact of Tapes philippinarum farming on nutrient dynamics and benthic respiration in the Sacca di Goro. Hydrobiologia, 455, pp. 203-212. Comments: At high densities Ruditapes philippinarum can affect nutrient dynamics. |
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 (?) | Unknown Comments: species intentionally introduced for culture |
Last update by | Sandra Gečaitė, 2024-07-19 |