AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Ruditapes philippinarum | |
Date of the first record (?) | 1982 References: Anderson R. (2002) Establishment and spread of Manila clam (Ruditapes philippinarum (A. Adams and Reeve) (Mollusca: Veneridae) in Strangford Lough, Co Down. Irish Naturalists’ Journal 38: 48-49 References (not structured): Utting SD, Spencer BE (1992) Introductions of marine bivalve molluscs into the United Kingdom for commercial culture - case histories. ICES Marine Science Symposium 194: 84-91. Comments: Introduced from Conwy subsequent to receiving broodstock from the USA. It was introduced to Ireland in 1982 in a commercial initiative (Britton 1991) |
Recipient region (?) | Country: Ireland LME: 24. Celtic-Biscay Shelf LME sub-region: Celtic seas References: Anderson R. (2002) Establishment and spread of Manila clam (Ruditapes philippinarum (A. Adams and Reeve) (Mollusca: Veneridae) in Strangford Lough, Co Down. Irish Naturalists’ Journal 38: 48-49 References (not structured): Utting SD, Spencer BE (1992) Introductions of marine bivalve molluscs into the United Kingdom for commercial culture - case histories. ICES Marine Science Symposium 194: 84-91. Comments: Clams were imported as seed from the Conwy Hatchery in North Wales where they had passed through quarantine having been imported there from the State of Washington in 1980. Currently, the predominant areas for Manila Clam production ere in northwest of the country, concentrated in the large bays of Donegal and Sligo (Dummond et al. 2006) |
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Source region (?) | Country: United Kingdom (Britain) --> LME: 24. Celtic-Biscay Shelf; LME sub-region: Celtic seas References (not structured): Utting SD, Spencer BE (1992) Introductions of marine bivalve molluscs into the United Kingdom for commercial culture - case histories. ICES Marine Science Symposium 194: 84-91 Comments: Obtained from the Ministry laboratory at Conwy, North Wales as seed clams. |
Pathway / Vector (?) | Level of certainty: Direct evidence Pathway: Culture activities Vector: Regional stock movement References (not structured): Utting SD, Spencer BE (1992) Introductions of marine bivalve molluscs into the United Kingdom for commercial culture - case histories. ICES Marine Science Symposium 194: 84-91 |
Habitat type (?) | Aquaculture sites Estuary Lagoon Port vicinity Sheltered coastal area Comments: Widely cultivated in sheltered environments about the coast, mainly on the south, west and north Irish shores at close to low water spring tides. |
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Wave exposure (?) | Not entered | |
Salinity range (?) | Exact range: 14 - 33.5 References: Anderson R. (2002) Establishment and spread of Manila clam (Ruditapes philippinarum (A. Adams and Reeve) (Mollusca: Veneridae) in Strangford Lough, Co Down. Irish Naturalists’ Journal 38: 48-49 Comments: It is euryhaline and can live in salinities of 14-33.5 psu, with 20.5 as the optimum. |
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Temperature range (?) | Unknown References (not structured): Chew KK (1989) Manila clam biology and fishery development in North America. p. 243-261. In: Manzi, J.J. and M. Castagna [eds.]. Clam mariculture in North America. Elsevier Science Publ., Amsterdam. Comments: According to Chew can tolerate temperatures ranging from 0 to 36C. |
Zonation / Substratum (?) | Benthic: Littoral (Benthic) Sublittoral within photic zone Substratum: Soft (mud to pebbles) References (not structured): Xie Q, Burnell GM (1994) A comparative study of the gametogenic cycles of the clams Tapes philippinarum (Adams & Reeve, 1890) and Tapes decussatus (Linnaeus) on the South coast of Ireland. Journal of Shellfish Research 13 (2): 467-472. Drummond, L., Mulcahy, M. and Culloty, S. 2006. The reproductive biology of the Manila clam, Ruditapes philippinarum, from the North-West of Ireland. Aquaculture 254: 326-340. Comments: Usually grown under netting buried in a muddy-sand sediment after being reared in trays on trestles once large enough to leave the hatchery. |
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Reproductive duration (?) | Short References (not structured): Xie Q, Burnell GM (1994) A comparative study of the gametogenic cycles of the clams Tapes philippinarum (Adams & Reeve, 1890) and Tapes decussatus (Linnaeus) on the South coast of Ireland. Journal of Shellfish Research 13 (2): 467-472. Drummond L, Mulcahy M, Culloty S (2006) The reproductive biology of the Manila clam, Ruditapes philippinarum, from the North-West of Ireland. Aquaculture 254: 326-340. Comments: Although it is thought that ripe gametes have been released by spawning, or perhaps perhaps resorbed, there has been no recruitment noted in Ireland. | |
Reproductive seasonality (?) | Not entered | |
Migration pattern (?) | Not entered |
Population status (?) | Not established (Low level of certainty) References (not structured): Coleman EM (1989) An investigation into the performance of the Manila clam Tapes semidecussatus (Reeve) in Dumcliff Bay Co. Sligo. MSc Thesis, National University of Ireland, 71 pp. 0'Kelly K (1984) Prospective of clam culture in Ireland. In: Proceedings of International Shellfish Seminar. Ed. O'Sullivan AJ., Dublin Environmental Management Service, Bantry, 125-135. Partridge JK (1977) Littoral and benthic investigations on the West coast of Ireland. IV. Section A : Faunistic and ecological studies (annotated bibliographies of genus Tapes) (Bivalvia: Veneridae) : Part l -Tapes decussatus (L.). Part II -Tapes semidecussatus Reeve. Proceedings of the Royal Irish Academy 77 B (1): 1-64. Drummond LC, Balboa S, Beaz R, Mulcahy MF, Culloty SC, Romalde JL (2007) The susceptibility of Irish-grown and Galician-grown Manila clams, Ruditapes philippinarum, to Vibrio tapetis and brown-ring disease. Journal of Invertebrate Pathology 95(1): 1-8. Jensen AC, Humphreys J, Caldow RWG, Grisley C, &Dyrynda; PEJ (2004) Naturalization of the Manila clam (Tapes philippinarum), an alien species, and establishment of a clam fishery within Poole harbour, Dorset. Journal of the Marine Biological Association of the United Kingdom, 84, 1069-1073. Comments: Current culture activities are dependent upon hatchery seed production. The species is not thought to have established itself in Irish waters as the sea temperatures would not appear to be sustained sufficiently long enough to enable recruitment. However, at some future time should the sea water temperatures increase some localised areas may enable recruitment as has happened in Poole Harbour (Jensen et al. (2004). Brown ring disease will have had an impact on farmed clams in 1997 caused by Vibrio tapetis causing a brown ring signs on clam shells on the north-west coast of Ireland. The species is cultivated in many bays along the south, west and north coasts of Ireland. |
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Species status (?) | Non-indigenous species References (not structured): Lee SY (1996) Distribution pattern and interaction of two infaunal bivalves, Tapes philippinarum (Adams and Reeve) and Anomalocardia squamosa (Linnaeus) (Bivalvia: Veneridae). Journal of Experimental Marine Biology and Ecology 201: 253-273. Gillespie GE, Bower SA, Marcus KL, Kieser D (2012) Biological synopsises for three exotic mollusks, Manila Clam (Venerupis philippinarum), Pacfic Oyster (Crassostrea gigas) and Japense Scallop (Mizuhopecten yessoensis) licensed for Aquaculture in British Columbia. DFO Can. Sci. Advis. Sec. Res. Doc. 2012/013. v + 97p. Flassch JP, Leborgne Y (1992) Introduction in Europe, from 1972 to 1980, of the Japanese Manila clam (Tapes philippinarum) and the effects on aquaculture production and natural settlement. ICES Marine Science Symposia 194: 92-96. Comments: This cultivated clam was introduced unintentionally along with Pacific oysters to British Columbia, in the 1930s from Japan, where it later developed local populations. It soon after was cultivated on the northwest coast of North America. It was imported then to France in 1972 and later to Conwy in Wales. The native range is from the Kuril Islands, Sakhalin Island, Russia, Japan, Korea, China to Hong Kong. |
Created by | Dan Minchin |
Last update by | Dan Minchin, 2022-05-13 |