AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Pachycordyle michaeli [WoRMS] | |
Authority | (Berrill, 1948) References (not structured): Millard NA (1959) Hydrozoa from ships' hulls and experimental plates in Cape Town docks. Ann. S. Afr. Mus. 45: 239-246 |
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Family | Bougainvilliidae | |
Order | Anthoathecata | |
Class | Hydrozoa | |
Phylum | Cnidaria | |
Synonym (?) | Clavopsella navis Clavopsella quadranularia Cordylophora inkermanica Pachycordyle inkermanica Pachycordyle navis Pachycordyle quadranularia Rhizorhagium navis Thieliana navis References (not structured): Millard NA (1959) Hydrozoa from ships' hulls and experimental plates in Cape Town docks. Ann. S. Afr. Mus. 45: 239-246 Marfenin NN (1983) A new species of genus Cordylophora (Hydrozoa, Clavidae) from the Black Sea. Zool. Z., LXII, 11: 1732-1734 (In Russia) Thiel H (1962) Clavopsella quadranularia nov. spec. (Clavopsellidae nov. farm.) ein neuer hydroidpolyp aus der Ostsee und seine phylogenetishe bedeutung. J. Murph., Oekol. Tiere. 51: 227-260 |
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Sub-species level (?) | Not entered |
Native origin (?) | LME: 62. Black Sea --> LME sub-region: Black Sea References (not structured): Haydar D (2010) What is natural? The scale and consequenses of marine bioinvasions in the North Atlatic ocean. Disertation, University of Grioningen, 184 pp Comments: Origin could be Black sea. |
Life form / Life stage (?) |
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Sociability / Life stage (?) | Unknown |
Reproductive frequency (?) | Iteroparous References (not structured): Schuchert P (2004) Revision of the European athecate hydroids and their medusae ( Hydrozoa, Cnidaria): Families Oceanidae and Pachycordylidae.Revue suisse de Zoologie 111(2): 315-369 Comments: Reproduction leads to reduction of hydranths. |
Reproductive type (?) | Asexual References: Olive PJ (2002) Reproduction and Life Cycles in Invertebrates. University of Newcastle, Newcastle upon Tyne, UK Comments: In hydrozoans the dominant phase is the hydroid polyp, and free-living medusae are released for the purposes of sexual reproduction. Note that all the medusae produced by a scyphistoma or by a hydroid colony have the same genetic constitution. |
Developmental trait (?) | Not entered |
Characteristic feeding method / Life stage (?) |
References (not structured): Marfenin NN (1997) Adaptation capabilities of marine modular organisms. Hydrobiologia 355: 153-158 Comments: In poorly integrated species such as colonies of Cordylophora inkermanica the discrepancy between growth and the amount of received food causes an almost simultaneous rapid reabsorbtion of all the hydranths. |
Mobility / Life stage (?) |
References (not structured): Schuchert P (2007) The Europien athecate hydroids and their medusae (Hydrozoa, Cnidaria): Filitera Part 2. Revue suisse de Zoologie 114(2): 195-396 Comments: Shallow water species, growing on wooden floats and Fucus. Light induces spawning. |
Salinity tolerance range (?) | Venice system: 6. Polymixohaline [18-30psu] References: Anonymus (1997) Alien Species in the Marine Environment. Status and National Activities in the OSPARCOM Convention Area. Report prepared by the Swedish Environmental Protection Agency for IMPACT (97/7/1-E): 32 pp |
Habitat modifying ability potential (?) | Not entered |
Toxicity / Life stage (?) | Not entered |
Bioaccumulation association (?) | Not entered |
Known human health impact? | Not entered |
Known economic impact? | Not entered |
Known measurable environmental impact? | Not entered |
Included in the Target Species list? | Not entered |
Association with vessel vectors (?) | Not entered |
Molecular information | Not entered |
Created by | Romualda Chuševė, 2011-10-26 |
Last update by | Aleksas Narščius, 2019-04-09 |