AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Chara connivens [WoRMS] | |
Authority | P.Salzmann ex A.Braun, 1835 | |
Family | Characeae | |
Order | Charales | |
Class | Charophyceae | |
Phylum | Chlorophyta | |
Synonym (?) | Chara globularis f. connivens (Salzmann ex A.Braun) R.D.Wood | |
Sub-species level (?) | Not entered |
Native origin (?) | Not known References (not structured): Paavola M., A. Olenin, E. Leppakoski 2005. Are invasive species most successful in habitats of low native species richness across European brackish water seas? Estuarine, Coastal and Shelf Science, 64: 738-750. Comments: Western Europe, inland waters |
Life form / Life stage (?) |
References (not structured): Gruszka, P., Brzeska-Roszczyk, P., Pełechaty, M. 2023. Alien or endangered? Historical development of Chara connivens in the Baltic coastal waters and its implication for the species management. Journal for Nature Conservation, 73, 126416. |
Sociability / Life stage (?) |
References (not structured): Appelgren, K., Snickars, M., Mattila, J. 2004. Chara connivens Saltzm. Ex. A. Braun 1835 found in the Åland archipelago–a new species to Finland. Memoranda Soc. Fauna Flora Fennica, 80, pp. 11-13. |
Reproductive frequency (?) | Not entered |
Reproductive type (?) | Asexual Sexual Comments: Chara reproduces vegetatively and sexually. Vegetative reproduction takes place by tubers, amylum stars and secondary protonemata. The sex organs are a multicellular and jacketed globule or antheridium (male) and nucule or archegonium (female). |
Developmental trait (?) | Not entered |
Characteristic feeding method / Life stage (?) |
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Mobility / Life stage (?) |
References (not structured): Appelgren, K., Snickars, M., Mattila, J. 2004. Chara connivens Saltzm. Ex. A. Braun 1835 found in the Åland archipelago–a new species to Finland. Memoranda Soc. Fauna Flora Fennica, 80, pp. 11-13. Comments: It grows on sand, muddy sand, muddy clay or mixtures of sand with pebbles. It is thrives in sheltered, rarely in relatively exposed locations in a depth of 0.2 to 4 m. |
Salinity tolerance range (?) | Exact range: 0 - 8 References: Blumel C, Schubert M, Steinhart T, Schubert H (2002) Macrophytes in general. In: Characterisation of the Baltic Sea Ecosystem (CHARM). First annual report (1 December 2001 - 30 November 2002) Characterisation of the Baltic Sea Ecosystem (CHARM): 21p. Paavola M, Olenin S, Leppäkoski E (2005) Are invasive species most successful in habitats of low native species richness across European brackish water seas? Estuarine, Coastal and Shelf Science 64 (2005) 738-750 Wallentinus I (2002) Introduced marine algae and vascular plants in European aquatic environments. In: Leppakoski E., Gollasch S. and Olenin S.(eds), Invasive Aquatic species of Europe - distribution impacts and management. Kluwer Academic Publishers, Dordrecht, Boston, London: 27-52 Luther H (1979) Chara connivens in the Baltic Sea area. Ann. Bot. Fennici, 16: 141-150. Blindow I (2000) Distribution of charophytes along the Swedish coast in relation to salinity and eutrophication. International Review of Hydrobiology, 85(5-6): 707-717. Torn K, Martin G, Kukk H, Trei T (2004) Seasonal variation in invertebrate grazing on Chara connivens and C. tomentosa in Koiguste Bay, NE Baltic Sea. Sci. Mar. 68(suppl.1): 129-136 Comments: C. connivens was found, the salinity was 5.4–5.6 ppt. In the Baltic Sea C. connivens is found in a salinity range of 1–8 psu. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Known Comments: Harmless. |
Known economic impact? | Not known Comments: Not available. |
Known measurable environmental impact? | Not known Comments: Not available. |
Included in the Target Species list? | No References: HELCOM, 2009. Alien Species and Ballast Water [PDF] Available at: https://archive.iwlearn.net/helcom.fi/stc/files/shipping/Table_2_Alienspecies_%20lists_2009.pdf [Accessed 1 July 2024]. |
Association with vessel vectors (?) | Ballast waters References: Gruszka, P., Brzeska-Roszczyk, P., Pełechaty, M. 2023. Alien or endangered? Historical development of Chara connivens in the Baltic coastal waters and its implication for the species management. Journal for Nature Conservation, 73, 126416. Comments: C. connivens is a rare species in most of the Baltic Sea area. It was probably introduced to the Baltic Sea with ballast sand and stones already several centuries ago. |
Last update by | Sandra Gečaitė, 2024-08-05 |