AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Codium fragile [WoRMS] | |
Authority | (Suringar) Hariot, 1889 | |
Family | Codiaceae | |
Order | Bryopsidales | |
Class | Ulvophyceae | |
Phylum | Chlorophyta | |
Synonym (?) | Oyster Thief | |
Sub-species level (?) | scandinavicum |
Native origin (?) | Ocean: Pacific Comments: Indo-Pacific |
Life form / Life stage (?) |
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Sociability / Life stage (?) | Not entered |
Reproductive frequency (?) | Not entered |
Reproductive type (?) | Asexual References: Zaiko A. 2005. Codium fragile. In: Baltic Sea Alien Species Database. S. Olenin, E. Leppakoski and D. Daunys (eds.). Fralick, R. A., Mathieson, A. C. 1973. Ecological studies of Codium fragile in New England, USA. Marine Biology, 19, pp. 127-132. Comments: Codium has only a gametophyte generation. The eggs and sperm are found in separate chambers called gametangia which project off the utricles. Most species of Codium are dioecious, with the male and female gametangia on separate plants. Each of the gametes has two flagella, and the female gametes are larger than the male gametes. |
Developmental trait (?) | Not entered |
Characteristic feeding method / Life stage (?) |
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Mobility / Life stage (?) |
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Salinity tolerance range (?) | Exact range: 17.5 - 40 References: Summerson, R., Darbyshire, R., & Lawrence, E. (2007). Invasive marine species range mapping. Australian Government, Bureau of Rural Sciences. |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Zaiko A. 2005. Codium fragile. In: Baltic Sea Alien Species Database. S. Olenin, E. Leppakoski and D. Daunys (eds.). Comments: The main negative social effect is that the introduced alga grows profusely and fouls wharf pilings, jetties, ropes, and beaches thereby reducing the amenity associated with the use of coastal areas. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Laib, E., & Leghouchi, E. 2012. Cd, Cr, Cu, Pb, and Zn concentrations in Ulva lactuca, Codium fragile, Jania rubens, and Dictyota dichotoma from Rabta Bay, Jijel (Algeria). Environmental monitoring and assessment, 184, pp. 1711-1718. Zaiko A. 2005. Codium fragile. In: Baltic Sea Alien Species Database. S. Olenin, E. Leppakoski and D. Daunys (eds.). Comments: A green marine sea-grass Codium fragile, which grows abundantly on numerous varieties of coastal substrates may enable scentists to draw precise mapping of pollutions according to metallic compounds concentration into its tissues. It accumulates heavy metals within its thallus: the lower, older parts of thallus contain substantially more metals than the distal branch tips Thye species also accumulates metals (copper, cadmium, and lead). |
Known human health impact? | Known References: Oh, S., Kim, S., Jung, K., Pham, T. N. A., Yang, S., Ahn, B. 2022. Potential prebiotic and anti-obesity effects of codium fragile extract. Applied Sciences, 12(3), 959. Comments: Codium fragile contains chemicals, which may be of medical use. |
Known economic impact? | Known References: Zaiko A. 2005. Codium fragile. In: Baltic Sea Alien Species Database. S. Olenin, E. Leppakoski and D. Daunys (eds.). Comments: The accumulation of masses of C. fragile rotting on beaches of the NW Atlantic, Mediterranean, and New Zealand can produce unpleasant odours. The most detrimental effect of C. fragile is the fouling of shellfish beds. In different parts of the species’ broad geographic range, C. fragile is consumed by humans, used as invertebrate food by the mariculture industry, is a pest of natural and cultivated shellfish beds, and is a source of bioactive compounds. |
Known measurable environmental impact? | Known References: Chavanich, S., Harris, L. G. 2004. Impact of the Non-Native Macroalga Codium fragile (Sur) Hariot ssp. Veliger, 47(2), pp. 85-90. Comments: May cause the displacement of the native algal species. C. fragile is being successfully consumed by grazers. |
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 (?) | Unknown |
Created by | Romualda Chuševė, 2011-11-03 |
Last update by | Sandra Gečaitė, 2024-07-10 |