AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Cryptonemia hibernica | |
Date of the first record (?) | 1971 References (not structured): Guiry MD, Irvine LM (1974). A species of Cryptonemia new to Europe. British Phycological Journal 9: 225-237. Comments: Described as a new species from drift material obtained from Cork Harbour in November 1971 during a study 1971 to 1973. |
Recipient region (?) | Country: Ireland LME: 24. Celtic-Biscay Shelf LME sub-region: Celtic seas References (not structured): Guiry MD, Irvine LM (1974) A species of Cryptonemia new to Europe. British Phycological Journal 9: 225-237. Comments: Camden near the entrance to Cork Harbour is where the drift material was obtained. but it was not until some years later that attached plants were found in 1976 by Cullinane and Whelan (1981). |
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Source region (?) | Unknown Comments: Although described from Ireland as Cryptonemia hibernica its origin is believed to be elsewhere. |
Pathway / Vector (?) | Level of certainty: Highly likely Pathway: Vessels Vector: (Highly likely) Ship’s hull Comments: It is likely that it was introduced as hull fouling. On a number of occasions P. Whelan (pers. comm.) has noted red algae attached to the hulls of ships. |
Habitat type (?) | Not entered | |
Wave exposure (?) | Semi exposed Sheltered |
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Salinity range (?) | Not entered | |
Temperature range (?) | Not entered |
Zonation / Substratum (?) | Benthic: Sublittoral within photic zone Substratum: Hard (cobbles to bedrock) References (not structured): Cullinane J, Maguire D, Whelan P (1984) The importance of substrate type in colonization by Cryptonemia hibernica Guiry et Irvine and its associated algae. Proceedings of the International Seaweed Symposium 11: 438-442. Comments: Plants at up to 30 per square metre were found at 3m at Carlisle (opposite Camden) in the throat of Cork Harbour. It was found attached to small stones in amongst Zostera meadows. |
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Reproductive duration (?) | Unknown References (not structured): Cullinane JP, Whelan PM (1981). Ecology, distribution and seasonality of Cryptonemia hibernica Guiry et Irvine on the south coast. Proceedings of the International Seaweed Symposium 10: 259-264. Comments: It is not clear if this alga is dioecious or monoecious, its carposporophyte phase was found in months of February, August, November and December and the tertrasporophyte phase in August and November. Plants in winter have heavily eroded blades. | |
Reproductive seasonality (?) | Unknown | |
Migration pattern (?) | Not entered |
Population status (?) | Abundant (Moderate level of certainty) References (not structured): Cullinane J, Maguire D, Whelan P (1984) The importance of substrate type in colonization by Cryptonemia hibernica Guiry et Irvine and its associated algae. Proceedings of the International Seaweed Symposium 11: 438-442. Comments: Plants are locally abundant in Cork harbour and the alga is also established in Kinsale Harbour and Oysterhaven occurring from 0.5 -11m below low water. The species is tolerant of sand abrasion, current movements and low light levels attaching to shells, boulders and rock and will attach to living barnacles, scallops and razor shells. Plants have been found at all times of the year. |
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Species status (?) | Non-indigenous species References (not structured): Whelan PM, Cullinane JP (1981) The occurrence of Cryptonemia hibernica Guiry et Irvine on the south coast of Ireland. Cryptogamie, Algologie 2: 179-184. Guiry MD, Guiry GM (2013) AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 22 October 2013 Price JH, John DM, Lawson GW (1986) Seaweeds of the western coast of tropical Africa and adjacent islands: a critical assessment. IV. Rhodophyta (Florideae). 1. Genera A-F. Bulletin of the British Museum (Natural History) Botany 15: 1-122. Comments: The species has been recorded from Namibia and this is most likely to be the native range of this rhodophyte. |
Created by | Dan Minchin, 2011-11-09 |
Last update by | Dan Minchin, 2013-11-05 |