AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Austrominius modestus | |
Date of the first record (?) | 1957 References (not structured): Beard DM (1957) Occurrence of Elminius modestus Darwin in Ireland. Nature 180: 1145. Comments: It was first located in lough hyne on the south coast of Ireland during September 1957. This region was a special marine study area in Ireland, although not a reserve at this time. |
Recipient region (?) | Country: Ireland LME: 24. Celtic-Biscay Shelf LME sub-region: Celtic seas References (not structured): Beard DM (1957) Occurrence of Elminius modestus Darwin in Ireland. Nature 180: 1145. Comments: In the region of Lough Hyne specimens were found close by in Tralispean and on the Coosh at the entrance to the Lough. |
|
Source region (?) | Not entered References (not structured): Crisp, D.J. 1958. The spread of Elminius modestus Darwin in north-east Europe. Journal of the Marine Biological Association of the United Kingdom, 37: 438-520 |
Pathway / Vector (?) | Level of certainty: Highly likely Pathway: Vessels Vector: (Highly likely) Ship’s hull References (not structured): Bishop, M.W.H. 1947. Establishment of an immigrant barnacle in British coastal waters. Nature, 159: 501. Comments: The most generally accepted pathway is that of vessels and the vector the hull. Barnacles are frequently found associated with the hulls of vessels and even small craft such as dinghies. Its appearance of the south coast of Ireland has been associated with ports and harbours. |
Habitat type (?) | Aquaculture sites Estuary Lagoon Marina Port vicinity Ports Sheltered coastal area References (not structured): Allen, B.M., Power, A.M., O'Riordan, R.M., Myers, A.A. & McGrath, D. ; (2006) Increases in the abundance of the invasive barnacle Elminius modestus Darwin in Ireland. Biology and Environment, 106 (B):91-97. Minchin D, Nunn J (2013) Rapid assessment of marinas for invasive alien species in Northern Ireland. A report undertaken for the Northern Ireland Environment Agency, Belfast. 96pp. Comments: Has been known to cause extensive fouling on aquaculture equipment and has caused rafts holding oysters to sink. Commonly associated with hull fouling especially on craft that are moored inter-tidally. Known from floating pontoons and piles at marinas. |
|
Wave exposure (?) | Sheltered References (not structured): Allen, B.M., Power, A.M., O'Riordan, R.M., Myers, A.A. & McGrath, D. (2006) Increases in the abundance of the invasive barnacle Elminius modestus Darwin in Ireland&. Biology and Environment, 106 (B):91-97. Comments: Generally the species occurs in sheltered areas most often in estuaries where it can be very abundant. |
|
Salinity range (?) | Venice system: 5. α-Mesohaline [10-18psu] 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References (not structured): O'Riordan RM, Murphy O (2000) Variation in the reproductive cycle of Elminius modestus in southern Ireland. Journal of the Marine Biological Association of the United Kingdom 80: 608-616. Comments: nauplius stages can endure salinities down to 20/21psu |
|
Temperature range (?) | Not entered |
Zonation / Substratum (?) | Benthic: Littoral (Benthic) Sublittoral within photic zone Substratum: Artificial (manmade) Biogenic (living or nonliving) Hard (cobbles to bedrock) Soft (mud to pebbles) References (not structured): Allen, B.M., Power, A.M., O'Riordan, R.M., Myers, A.A. & McGrath, D. ; (2006) Increases in the abundance of the invasive barnacle Elminius modestus Darwin in Ireland. Biology and Environment, 106 (B):91-97. Comments: Attaches to a wide range of substrata including Littorina littorea in salt-marshes |
|
Reproductive duration (?) | Long References (not structured): Watson DI, O'Riordan RM, Barnes DKA, Cross T (2005) Temporal and spatial variability in the recruitment of barnacles and the local dominance of Elminius modestus Darwin in SW Ireland. Science (New York, N.Y.), 63 :119-131. O'Riordan RM, Murphy O (2000) Variation in the reproductive cycle of Elminius modestus in southern Ireland. Journal of the Marine Biological Association of the United Kingdom 80: 608-616. Comments: The species is an obligatory cross-fertilising haemaphrodite which can produce multiple broods. well nourished adults produce broods at 8-31C. Larvae hatch at salinities above 21 psu and are then active between 19 and 40 psu. | |
Reproductive seasonality (?) | Apr. May Jun. Jul. Aug. Sept. Oct. Nov. Dec. References (not structured): Watson, DI,O'Riordan, RM,Barnes, DKA,Cross, T; (2005) Temporal and spatial variability in the recruitment of barnacles and the local dominance of Elminius modestus Darwin in SW Ireland. Science (New York, N.Y.), 63 :119-131. Harms, J. 1984. Influence of water temperature on larval development of Elminius modestus and Semibalanus balanoides (Crustacea, Cirripedia). Helgoländer Meeresuntersuchungen 38: 123-134. O'Riordan RM, Murphy O (2000) Variation in the reproductive cycle of Elminius modestus in southern Ireland. Journal of the Marine Biological Association of the United Kingdom 80: 608-616. Comments: reproduction commences in the spring once temperatures exceed 6-8C |
|
Migration pattern (?) | Not entered |
Population status (?) | Very abundant (Moderate level of certainty) References (not structured): Allen, B.M., Power, A.M., O'Riordan, R.M., Myers, A.A. & McGrath, D. ; (2006) Increases in the abundance of the invasive barnacle Elminius modestus Darwin in Ireland. Biology and Environment, 106 (B):91-97. Holmes JMC (1980) Some crustacean records from Lough Ine, Co Cork. Irish Biogeographical Bulletin 4: 33-37. Watson DI, O'Riordan RM, Barnes DKA, Cross T (2005) Temporal and spatial variability in the recruitment of barnacles and local dominance of Elminius modestus Darwin in SW Ireland. Estuarine, Coastal and Shelf Science 63: 119-131. Lawson J, Davenport J, Whitaker A (2004) Barnacle distribution in Lough Hyne Marine Nature Reserve: a new baseline and an account of invasion by the introduced Australasian species Elminius modestus Darwin. Estuarine, Coastal and Shelf Sciences 60: 729-735. Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus to the British Isles. Journal of the Marine Biological Association of the United Kingdom 38: 429-437. King PA, Keogh E, McGrath D (1997) The current status of the exotic barnacle Elminius modestus Darwin in Galway Bay, Ireland. Irish Naturalists' Journal 25(10): 353-392. McGrath D and King P (1992) The immigrant barnacle, Elminius modestus Darwin, in Galway Bay, Ireland. Bulletin of the Irish Biogeographical Society 15: 63-67. Aitken JJ, Hillis JP (1959) The occurrence of Elminius modestus (Darwin) in north Ireland. Irish Naturalists' Journal 13(4): 100. O'Riordan RM (1996) The current status and distribution of the Australian barnacle Elminius modestus Darwin in Ireland. In: Proceedings of the Irish Marine Science Symposium 1995 (eds) Keegan BF and R O'Connor, Galway University Press, Galway, 207-218. O'Riordan, R.M.; (1996) 'The current status of the Australian barnacle Elminius modestus Darwin in Ireland' In: B.F. Keegan and R. O'Connor (eds). Proceedings of the Irish Marine Science Symposium 1995. Ireland: NUIG. Minchin D, Nunn J (2013) Rapid assessment of marinas for invasive alien species in Northern Ireland. A report undertaken for the Northern Ireland Environment Agency, Belfast. 96pp. Comments: The species is locally abundant in estuaries such as Kinsale Estuary and is now present within most estuaries about most coastal areas. The barnacle was not found within the Lough HYne until it was recorded by Holmes (1980)at the North Pier. This Lough has since become a special site of study. While this was the first place where this barnacle became recognised it was most probably present in Cork Harbour between 1954 and 1956, it being absent when surveyed in 1953.(Crisp, 1958) |
|
Species status (?) | Non-indigenous species References (not structured): Pope EC (1966) Sessile barnacles Thoracica, Cirripedia: Port Phillip Survey 1957-1963. Memoirs of the National Museum. Victoria 27: 179-180. Comments: The species is native to Australia (and New Zealand). There is a further species that prefers more open coastal conditions, lower surfaces of boulders and in caves Elminius simplex |
Port vicinities | Port vicinity #1/14: Bantry Date of the first record: 1968 Population status: Established References: Crapp GB (1973) The distribution of animals and plants on the shores of Bantry Bay. Scientific Investigations of the Fisheries Branch, Ireland, B, No 9, 1-35. Baker JM, Hiscock S, Levell D, Bishop G, Precious M, Collinson R, Kingbury R, Sullivan AJ (1981) The rocky shore biology of Bantry Bay: a re-survey. Irish Fisheries Investigations, Series B. No 23: 1-27. Comments: The species is presently well established in Bantry Bay. Port vicinity #2/14: Belfast Date of the first record: 1958 Population status: Very abundant References: Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus in the British Islea to 1959. Journal of the Marine Biological Association of the United Kingdom 64: 625-635. Port vicinity #3/14: Castletownbere Date of the first record: 1996 Population status: Not entered References: Minchin A, Minchin D (1997) Dispersal of TBT from a fishing port determined using the dogwhelk Nucella lapillus as an indicator. Environmental Technology, 18(12): 1225-1234 Comments: Found during a survey attached to dogwhelk Nucella lapillus during July 1996. Port vicinity #4/14: Cork Date of the first record: 1958 Population status: Established References: Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus in the British Islea to 1959. Journal of the Marine Biological Association of the United Kingdom 64: 625-635. Comments: Locally abundant in Cork Harbour in the 1960s (D. Minchin, pers. ob). Port vicinity #5/14: Derry/Londonderry Date of the first record: 1958 Population status: Common References: Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus in the British Islea to 1959. Journal of the Marine Biological Association of the United Kingdom 64: 625-635. Briggs RP, (1982) Community structure and growth of Mytilus edulis L. in Lough Foyle. Proceedings of the Royal Irish Academy 82B: 245-259. Comments: Initially when found in 1958 only three mature individuals were found. The species has subsequntly become common in the Foyle Estuary by 2012. Port vicinity #6/14: Dublin Date of the first record: 1958 Population status: Common References: Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus in the British Islea to 1959. Journal of the Marine Biological Association of the United Kingdom 64: 625-635. O'Riordan RM, Murphy O (2000) Variation in the reproductive cycle of Elminius modestus in southern Ireland. Journal of the Marine Biological Association of the United Kingdom 80: 608-616. Comments: The species is widely distributed in the vicinity of Dublin Port in Dublin Bay, Howth and Dun Laoghaire. Port vicinity #7/14: Dun Laoghaire Date of the first record: 1995 Population status: Established References: O'Riordan RM (1996) The current status and distribution of the Australian barnacle Elminius modestus Darwin in Ireland. In: Proceedings of the Irish Marine Science Symposium 1995 (eds) Keegan BF and R O'Connor, Galway University Press, Galway, 207-218. Comments: Two specimens were found in 1995 but the species has become more frequent since then. Port vicinity #8/14: Dundalk Date of the first record: 1958 Population status: Established References: Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus in the British Islea to 1959. Journal of the Marine Biological Association of the United Kingdom 64: 625-635. Comments: When first found few individuals were found. Port vicinity #9/14: Fenit Date of the first record: 1975 Population status: Established References: McGrath D and King P (1992) The immigrant barnacle, Elminius modestus Darwin, in Galway Bay, Ireland. Bulletin of the Irish Biogeographical Society 15: 63-67. Comments: The first siting was reported from near Blennerville Bridge in the mid 1970s by Colm B Duggan. Port vicinity #10/14: Foynes Date of the first record: 1989 Population status: Established References: McGrath D and King P (1992) The immigrant barnacle, Elminius modestus Darwin, in Galway Bay, Ireland. Bulletin of the Irish Biogeographical Society 15: 63-67. Comments: Specimens were found at Tarbert downstream from Foynes in the Shannon Estuary. Port vicinity #11/14: Galway Date of the first record: 1989 Population status: Common References: McGrath D, King PA (1992) The immigrant barnacle, Elminius modestus Darwin, in Galway Bay, Ireland. Bulletin of the Irish Biogeographic Society 15: 63-67. King PA, Keogh E, McGrath D (1997) The current status of the exotic barnacle Elminius modestus Darwin in Galway Bay, Ireland. Irish Naturalists' Journal 25(10): 365-369. Comments: By 1996 the species will have become locally common in Galway Bay close to the port region. Port vicinity #12/14: Killybegs Date of the first record: 1995 Population status: Established References: O'Riordan RM (1996) The current status and distribution of the Australian barnacle Elminius modestus Darwin in Ireland. In: Proceedings of the Irish Marine Science Symposium 1995 (eds) Keegan BF and R O'Connor, Galway University Press, Galway, 207-218. Comments: O'Riordan estimated that 15% of the population were breeding. The population being well established by that time. Port vicinity #13/14: Larne Date of the first record: 1958 Population status: Established References: Crisp DJ, Southward AJ (1959) The further spread of Elminius modestus in the British Islea to 1959. Journal of the Marine Biological Association of the United Kingdom 64: 625-635. Port vicinity #14/14: Wicklow Date of the first record: 1995 Population status: Established References: O'Riordan RM (1996) The current status and distribution of the Australian barnacle Elminius modestus Darwin in Ireland. In: Proceedings of the Irish Marine Science Symposium 1995 (eds) Keegan BF and R O'Connor, Galway University Press, Galway, 207-218. Comments: Rare in 1995. |
Created by | Dan Minchin |
Last update by | Dan Minchin, 2013-12-06 |