AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Ligia oceanica [WoRMS] | |
Authority | (Linnaeus, 1767) | |
Family | Ligiidae | |
Order | Isopoda | |
Class | Malacostraca | |
Phylum | Arthropoda | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Atlantic --> Ocean region: NE Atlantic |
Life form / Life stage (?) |
References (not structured): Pandian, T. J. 1973. Egg incubation and yolk utilization in the isopod Ligia oceanica. Proceedings of the National Academy of Sciences, India, 38(5-6), pp. 430-441. |
Sociability / Life stage (?) |
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Reproductive frequency (?) | Semelparous References (not structured): Willows, R. I. 1987. Intrapopulation Variation in the Reroductive Characteristics of Two Populations of Ligia oceanica (Crustacea: Oniscidea). The Journal of Animal Ecology, pp. 331-340. Comments: Adults here are semelparous, but with early-summer and late-summer breeding cohorts. Individuals live for 2–3 years and usually breed only once. |
Reproductive type (?) | Sexual References: Willows, R. I. 1984. The population biology of Ligia oceanica (L.)(Crustacea: Oniscoidea) (Doctoral dissertation, University of Leeds). Comments: L. oceanica has separate sexes, brooded young, and direct development. Fertilization is internal. For females from England, fecundity increased with body size, the number of embryos increasing with body size, from ranging from 50 to 120 eggs. |
Developmental trait (?) | Brooding Direct development References: Willows, R. I. 1984. The population biology of Ligia oceanica (L.)(Crustacea: Oniscoidea) (Doctoral dissertation, University of Leeds). |
Characteristic feeding method / Life stage (?) |
References (not structured): Nicholls, A. G. 1931. Studies on Ligia oceanica. Part II. The processes of feeding, digestion and absorption, with a description of the structure of the foregut. Journal of the Marine Biological Association of the United Kingdom, 17(3), pp. 675-706. Willows, R. I. 1987. Population and individual energetics of Ligia oceanica (L.)(Crustacea: Isopoda) in the rocky supralittoral. Journal of experimental marine biology and ecology, 105(2-3), pp. 253-274. Comments: It is a nocturnal omnivore, eating many kinds of seaweed, diatoms, and detritus, with a particular fondness for bladder wrack (Fucus vesiculosus). |
Mobility / Life stage (?) |
References (not structured): Pandian, T. J. 1973. Egg incubation and yolk utilization in the isopod Ligia oceanica. Proceedings of the National Academy of Sciences, India, 38(5-6), pp. 430-441. Comments: L. oceanica is a fast-running semi-terrestrial isopod commonly known as the Sea Slater. It is a common species, occurring wherever the substrate of the littoral zone is rocky, and is especially common in crevices and rock pools and under stones. |
Salinity tolerance range (?) | Exact range: 8 - 32 References: Todd, M. E. 1963. Osmoregulation in Ligia oceanica and Idotea granulosa. Journal of Experimental Biology, 40(2), pp. 381-392. Comments: Animals survived well at 32 and 16 PSU, but only a few survived at 8 PSU. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Hopkin, S. P., Martin, M. H., Moss, S. J. 1985. Heavy metals in isopods from the supra-littoral zone on the southern shore of the Severn Estuary, UK. Environmental Pollution Series B, Chemical and Physical, 9(4), pp. 239-254. |
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 (?) | Unknown Comments: Not available. |
Last update by | Sandra Gečaitė, 2024-08-12 |