AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Anguillicoloides crassus [WoRMS] | |
Authority | (Kuwahara, Niimi & Itagaki, 1974) Moravec & Taraschewski, 1988 | |
Family | Anguillicolidae | |
Order | Rhabditida | |
Class | Chromadorea | |
Phylum | Nematoda | |
Synonym (?) | Anguillicola crassus References (not structured): Kuwahara A, Niimi A, Itagaki H (1974)Studies of a nematode parasitic in the air bladder of the eel: 1. Description of Anguillicola crassus n. sp.(Philometridae, Anguillicolidae). Japanese Journal of Parasitology |
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Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Pacific --> Ocean region: SW Pacific References (not structured): Kuwahara A, Niimi A, Itagaki H (1974)Studies of a nematode parasitic in the air bladder of the eel: 1. Description of Anguillicola crassus n. sp.(Philometridae, Anguillicolidae). Japanese Journal of Parasitology Comments: The parasite originates from South-East Asia (Japan, China) where it infects the Japanese eel, Anguilla japonica. |
Life form / Life stage (?) |
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Sociability / Life stage (?) |
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Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: De Charleroy D, Crisez L, Thomas K, Belapire C, Ollevier F (1990)The life cycle of Anguillicola crassus.Diseases of Aquatic Organisms 8:77-84. |
Developmental trait (?) | Viviparous References: De Charleroy D, Crisez L, Thomas K, Belapire C, Ollevier F (1990)The life cycle of Anguillicola crassus.Diseases of Aquatic Organisms 8:77-84. |
Characteristic feeding method / Life stage (?) |
References (not structured): De Charleroy D, Grisez L, Thomas K, Belpaire C, Ollevier F (1990) The life cycle of Anguillicola crassus. Diseases of aquatic organisms Comments: Parasite: The adults feed on the blood (hematophagy) of their host. |
Mobility / Life stage (?) |
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Salinity tolerance range (?) | Venice system: 1. Limnetic [<0.5psu] References: Weidema.I.R. (red.) (2000) Introduced Species in the Nordic Countries. Nord 2000:13. Nordic Council of Ministers, Copenhagen. References: Garbacik-Wesolowska A, Szkudlarek A, Sobecka E (1994) Nematode Anguillicola crassus in eels from the Szczecin Lagoon and Lake Letowskie. Bulletin of the Sea Fisheries Institute Gdynia, 132: pp 34-37 |
Habitat modifying ability potential (?) | Keystone species Comments: Adult nematodes feed on blood supplied to the swimbladder wall and can result in eel mortality. Nematodes may contribute to the decline of the North Atlantic eel stock because eels may not reach spawning areas due to damaged swimbladders. |
Toxicity / Life stage (?) | Not relevant |
Bioaccumulation association (?) | Anthropogenic chemical compounds References: Genc, E., Sangun, M. K., Dural, M., Can, M. F., Altunhan, C. 2008. Element concentrations in the swimbladder parasite Anguillicola crassus (nematoda) and its host the European eel, Anguilla anguilla from Asi River (Hatay-Turkey). Environmental monitoring and assessment, 141, pp. 59-65. |
Known human health impact? | Known References: Didžiulis, V, 2006. NOBANIS-invasive alien species fact sheet - Anguillicola crassus. NOBANIS-invasive alien species fact sheet - Anguillicola crassus, pp. 9. Comments: Parasite is not infectious to human, it is harmless in food hygiene. A. crassus is not known to be transmissible to humans, since it is specific to eels. |
Known economic impact? | Known References: Køie, M. 1991. Swimbladder nematodes (Anguillicola spp.) and gill monogeneans (Pseudodactylogyrus spp.) parasitic on the European eel (Anguilla anguilla ). ICES Journal of Marine Science, 47(3), pp. 391-398. Comments: Danish eels farms have seen mortality rates between 15-65% where eels were infected with Anguillicola crassus. Also it can lower eel growth rates, which can reduce economic output of eel farms. |
Known measurable environmental impact? | Known References: Currie, H., Flores Martin, N., Garcia, G., Davis, F., Kemp, P. 2020. A mechanical approach to understanding the impact of the nematode Anguillicoloides crassus on the European eel swimbladder. The Journal of Experimental Biology, 223, jeb.219808. Comments: A. crassus causes significant damage to the swim bladder of eels in American eels (Anguilla rostrata), causing congestion, fibrosis, inflammation, hemorrhaging, lesions, and swim bladder rupture. |
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 (?) | Biofouling References: Køie M (1991) Swimbladder nematodes (Anguillicola spp.) and gill monogeneans (Pseudodactylogyrus spp.) parasitic on the European eel (Anguilla anguilla). ICES Journal of Marine Science, Volume 47, 391 – 398 pp, ISSN 1095-9289 Comments: The main dispersal vector is believed to be the uncontrolled intercontinental transfer of live eels, including stocking in natural waters. |
Last update by | Sandra Gečaitė, 2024-07-04 |