AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Gymnodinium catenatum [WoRMS] | |
Authority | H.W.Graham, 1943 | |
Family | Gymnodiniaceae | |
Order | Gymnodiniales | |
Class | Dinophyceae | |
Phylum | Myzozoa | |
Synonym (?) | Gyrodinium impudicum (Fraga et Bravo, 1995) | |
Sub-species level (?) | Not entered |
Native origin (?) | Not entered Comments: N Atlantic NW Pacific |
Life form / Life stage (?) |
References (not structured): Hallegraeff, G. M., Bolch, C. J. 1992. Transport of diatom and dinoflagellate resting spores in ships' ballast water: implications for plankton biogeography and aquaculture. Journal of plankton research, 14(8), pp. 1067-1084. Comments: Resistant resting stages (cysts) are formed during periods of nutrient stress which fall to the bottom sediments and may later germinate to establish a planktonic population when conditions are suitable. These cysts are highly resistant to physical and chemical attack, are long-lived (>10 years) under suitably anoxic conditions, and are therefore capable of long-distance (inter-continental) dispersal by a number of natural or anthropogenic vectors. From combination of confirmed planktonic and benthic resting cyst reports, G. catenatum has now been documented within discrete areas along the coastlines of all continents |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Not known Comments: Not available. |
Reproductive type (?) | Asexual Sexual References: Blackburn, S.I., Bolch, C.J.S., Haskard, K.A., Hallegraeff, G.M., 2001. Reproductive compatibility among four global populations of the toxic dinoflagellate Gymnodinium catenatum (Dinophyceae). Phycologia, 40, pp. 78-87. Comments: The primary form of population growth is through mitotic binary division of planktonic cells. Cell division occurs typically along a dorso-ventral diagonal plane, with the right side daughter cell migrating to a position below the other daughter cell and remaining attached to form chains. Other forms of division (sexual and non-sexual) have been noted in laboratory cultures. The sexual lifecycle of G. catenatum is typical of most dinoflagellates. Haploid vegetative cells are induced to act as gametes by as yet unknown mating factors produced by other sexually compatible cells. Gametes can be induced (or promoted) in laboratory cultures under nutrient limited conditions; however, some level of sexual reproduction is often evident even under nutrient-replete conditions. |
Developmental trait (?) | Resting stages References: Blackburn, S.I., Bolch, C.J.S., Haskard, K.A., Hallegraeff, G.M., 2001. Reproductive compatibility among four global populations of the toxic dinoflagellate Gymnodinium catenatum (Dinophyceae). Phycologia, 40, pp. 78-87. |
Characteristic feeding method / Life stage (?) |
References (not structured): Ribeiro, S., Amorim, A., Andersen, T. J., Abrantes, F., Ellegaard, M. 2012. Reconstructing the history of an invasion: the toxic phytoplankton species Gymnodinium catenatum in the Northeast Atlantic. Biological Invasions, 14, pp. 969-985. Comments: G. catenatum, an unarmoured chain-forming photoautotrophic dinoflagellate. |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Exact range: 15 - 40 References: Band-Schmidt, C. J., Morquecho, L., Lechuga-Devéze, C. H., Anderson, D. M. 2004. Effects of growth medium, temperature, salinity and seawater source on the growth of Gymnodinium catenatum (Dinophyceae) from Bahía Concepción, Gulf of California, Mexico. Journal of Plankton Research, 26(12), pp. 1459-1470. Comments: With seawater from Vineyard Sound (Massachusetts, USA), G. catenatum grew at salinities from 15 to 36, with an optimal growth rate obtained at salinities between 26 ppt and 30 ppt. With seawater from Bahía Concepción, this species tolerated salinities from 25 ppt to 40 ppt, with optimal growth at salinities between 28 ppt and 38 ppt. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) |
References: Liu, M., Gu, H., Krock, B., Luo, Z., Zhang, Y. 2020. Toxic dinoflagellate blooms of Gymnodinium catenatum and their cysts in Taiwan Strait and their relationship to global populations. Harmful Algae, 97, 101868. |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Known References: Liu, M., Gu, H., Krock, B., Luo, Z., Zhang, Y. 2020. Toxic dinoflagellate blooms of Gymnodinium catenatum and their cysts in Taiwan Strait and their relationship to global populations. Harmful Algae, 97, 101868. Comments: Dinoflagellate known to produce paralytic shellfish toxins (PST, saxitoxins). It is a causative organism of paralytic shellfish poisoning (PSP), a neurotoxic poisoning syndrome which affects human consumers of contaminated shellfish. |
Known economic impact? | Known References: Hoagland, P., Anderson, D.M., Kaoru, Y., White, A. W. 2002. The economic effects of harmful algal blooms in the United States: Estimates, assessment issues, and information needs. Estuaries 25, pp. 819–837. Comments: Shellfish contamination by PSP affects thousands of people per year on a worldwide basis and the economic costs of harmful algal blooms in the United States alone are in excess of 50 million dollars annually. |
Known measurable environmental impact? | Not known Comments: Environmental impacts of G. catenatum are largely unknown. |
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) |
Association with vessel vectors (?) | Ballast waters Tank sediments References: Hallegraeff, G. M., Bolch, C. J. 1992. Transport of diatom and dinoflagellate resting spores in ships' ballast water: implications for plankton biogeography and aquaculture. Journal of plankton research, 14(8), pp. 1067-1084. |
Last update by | Sandra Gečaitė, 2024-07-15 |