AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Amphibalanus improvisus | |
Date of the first record (?) | To 1950 References (not structured): O'Riordan CE (1967) Cirripedes in Ireland (Irish cirripedes in the collections of the National Museum of Ireland and in the literature). Proceedings of the Royal Irish Academy 65B: 285-296. Comments: Found by R MacDonald in Lough Foyle, the date is not recorded. |
Recipient region (?) | Country: Ireland LME: 24. Celtic-Biscay Shelf LME sub-region: Celtic seas References (not structured): O'Riordan CE (1967) Cirripedes in Ireland (Irish cirripedes in the collections of the National Museum of Ireland and in the literature). Proceedings of the Royal Irish Academy 65B: 285-296. 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: Known from Lough Foyle, from the Coolkeeragh area, attached to stones and wood on the shore, and still present in this region. |
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Source region (?) | Unknown Comments: The source region is not known. |
Pathway / Vector (?) | Level of certainty: Highly likely Pathway: Vessels Vector: (Highly likely) Ship’s hull References (not structured): Minchin D (2007) Rapid coastal survey for targeted alien species associated with floating pontoons in Ireland. Aquatic Invasions 2(1): 63-70. Comments: Might have been introduced on the hulls of vessels. Seen on the hulls of leisure craft and barges in Waterford Estuary. |
Habitat type (?) | Estuary Lagoon Marina Port vicinity Ports Sheltered coastal area References (not structured): Leppäkoski E. 1999. Balanus improvisus (Darwin 1854), Balanidae, Cirripedia. In: Exotics across the ocean. Case histories on introduced species: their general biology, distribution, range expansion and impact. Published by University of Kiel, Germany, Department of Fishery Biology, Institute for Marine Science: 49-54. |
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Wave exposure (?) | Sheltered References (not structured): O’Sullivan G (1983) The intertidal fauna of Aughinish Island, Shannon, Co Limerick. Irish Naturalists’ Journal 21(2) 62-68. Comments: The species if generally found in sheltered environments such as estuaries and lagoons. |
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Salinity range (?) | Venice system: 3. α-Oligohaline [3-5psu] 4. β-Mesohaline [5-10psu] 5. α-Mesohaline [10-18psu] 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References (not structured): Leppäkoski E. 1999. Balanus improvisus (Darwin 1854), Balanidae, Cirripedia. In: Exotics across the ocean. Case histories on introduced species: their general biology, distribution, range expansion and impact. Published by University of Kiel, Germany, Department of Fishery Biology, Institute for Marine Science: 49-54. Comments: The species can tolerate low salinities for prolonged periods. It does not reproduce in freshwater. It is active mainly at 6-30psu but can tolerate 40psu in some world regions. |
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Temperature range (?) | Min: 1 Max: 23 References (not structured): Leppäkoski E. 1999. Balanus improvisus (Darwin 1854), Balanidae, Cirripedia. In: Exotics across the ocean. Case histories on introduced species: their general biology, distribution, range expansion and impact. Published by University of Kiel, Germany, Department of Fishery Biology, Institute for Marine Science: 49-54. Comments: temperature estimates |
Zonation / Substratum (?) | Benthic and Pelagic: Littoral (Benthic) Littoral (Pelagic) Substratum: Artificial (manmade) Biogenic (living or nonliving) Hard (cobbles to bedrock) Soft (mud to pebbles) References (not structured): O’Sullivan G (1983) The intertidal fauna of Aughinish Island, Shannon, Co Limerick. Irish Naturalists’ Journal 21(2) 62-68. Leppäkoski E. 1999. Balanus improvisus (Darwin 1854), Balanidae, Cirripedia. In: Exotics across the ocean. Case histories on introduced species: their general biology, distribution, range expansion and impact. Published by University of Kiel, Germany, Department of Fishery Biology, Institute for Marine Science: 49-54. Comments: Attaches to a wide range of substrata from rock, stones, artificial materials, shells, and marine algae. |
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Reproductive duration (?) | Medium | |
Reproductive seasonality (?) | Not entered | |
Migration pattern (?) | Not entered |
Population status (?) | Very abundant (Moderate level of certainty) References (not structured): O’Sullivan G (1983) The intertidal fauna of Aughinish Island, Shannon, Co Limerick. Irish Naturalists’ Journal 21(2) 62-68. 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. Minchin D (2007) Rapid coastal survey for targeted alien species associated with floating pontoons in Ireland. Aquatic Invasions 2(1): 63-70. Comments: High level of certainty as to abundance. In some localities the dominant fouling species. Waterford Harbour and the Shannon Estuary to occur in abundance and records from other coastal estuaries and lagoons. |
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Species status (?) | Cryptogenic References (not structured): Furman ER (1990) Geographical variation of Balanus improvisus in biochemical and morphometric characters. Journal of the Marine Biological Association of the United Kingdom 70: 721-740. Comments: Its origin remains unclear. the species is widely distributed worldwide. |
Port vicinities | Port vicinity #1/5: Coleraine Date of the first record: 2006 Population status: Unknown References: Minchin D (2007) Rapid coastal survey for targeted alien species associated with floating pontoons in Ireland. Aquatic Invasions 2(1): 63-70. 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: Expired specimens were recovered from floating pontoons in 2006 and in 2012, no living material was found. Port vicinity #2/5: Cork Date of the first record: 1999 Population status: Unknown References: Minchin D (2004) Aquatic transport and the spread of exotic species: challenges for management: cars and planes, boats and trains, Dublin , Royal Irish Academy 244-265 pp Comments: Was found on a fishing vessel hull overwintering at Blackrock Cork in 1999. Specimens were subsequently seen at the Fota Bridge in Cork Harbour in 2000. Port vicinity #3/5: Derry/Londonderry Date of the first record: 1950 Population status: Abundant References: O'Riordan CE (1967) Cirripedes in Ireland (Irish cirripedes in the collections of the National Museum of Ireland and in the literature). Proceedings of the Royal Irish Academy 65B: 285-296 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: Abundant in the estuary and common in the upper reaches of the Foyle estuary. First recocognised from old reports in O'Riordan (1967). Port vicinity #4/5: Limerick Date of the first record: 1982 Salinity range (psu): 0.0 - 2.0 Population status: Very abundant References: O’Sullivan G (1983) The intertidal fauna of Aughinish Island, Shannon, Co Limerick. Irish Naturalists’ Journal 21(2) 62-68. Minchin D (2007) Rapid coastal survey for targeted alien species associated with floating pontoons in Ireland. Aquatic Invasions 2(1): 63-70. Comments: Locally abundant and will have been present before O'Sullivan's study will have taken place. Also abundant in the Kilrush Marina. Port vicinity #5/5: Waterford Date of the first record: 2006 Population status: Very abundant References: Minchin D (2007) Rapid coastal survey for targeted alien species associated with floating pontoons in Ireland. Aquatic Invasions 2(1): 63-70. Comments: The dominant species in the vicinity of Waterford Port. |
Created by | Dan Minchin |
Last update by | Dan Minchin, 2013-12-06 |