AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Paranthura japonica [WoRMS] | |
Authority | Richardson, 1909 | |
Family | Paranthuridae | |
Order | Isopoda | |
Class | Malacostraca | |
Phylum | Arthropoda | |
Synonym (?) | ||
Sub-species level (?) | Not entered |
Native origin (?) | Ocean: Pacific --> Ocean region: NW Pacific |
Life form / Life stage (?) |
|
Sociability / Life stage (?) |
|
Reproductive frequency (?) | Iteroparous |
Reproductive type (?) | Sexual References: Schultz, G.A. 1969. The Marine Isopod Crustaceans, Wm. C. Brown Company, Dubuque, Iowa. Comments: Paranthura japonica, like many anthuridean isopods, is protogynous (sequential hermaphrodites), maturing first as female, with some individuals later changing to male. Males are often relatively rare, and are undescribed for some species. Fertilization is internal, and the young are brooded. |
Developmental trait (?) | Brooding References: Scribano, G., Marchini, A., Ros, M. 2021. Population dynamics and life history traits of the non-indigenous Paranthura japonica,/em> Richardson (1909) in a recently invaded Mediterranean site, Regional Studies in Marine Science, 46,101883. Comments: Females can carry up to 78 eggs. |
Characteristic feeding method / Life stage (?) |
References (not structured): Marchini, A., Sorbe, J. C., Torelli, F., Lodola, A., Occhipinti-Ambrogi, A. 2014. The non-indigenous Paranthura japonica Richardson, 1909 in the Mediterranean Sea: travelling with shellfish?, Mediterranean Marine Science, 15(3), pp. 545-553. Comments: P. japonica is a predator on amphipods, isopods and tanaids. |
Mobility / Life stage (?) |
|
Salinity tolerance range (?) | Venice system: 5. α-Mesohaline [10-18psu] 6. Polymixohaline [18-30psu] 7. Euhaline [30-40psu] References: Wang, C.F., Ren, X.Q. Xu, R. L. 2010. Composition, abundance, and diversity of the Peracarida on different vegetation types in the Qi’ao-Dan’gan Island Mangrove Nature Reserve on Qi’ao Island in the Pearl River estuary, China. Zoological Studies, 49(5), pp. 608-615. Lorenti, M., Keppel, E., Petrocelli, A., Sigovini, M., Tagliapietra, D. 2016. The non-indigenous Paranthura japonica Richardson, 1909 (Isopoda: Anthuroidea: Paranthuridae) from the Mar Piccolo lagoon, Taranto (Italy, Mediterranean Sea). Environmental Science and Pollution Research, 23, pp. 12791-12796. Comments: It is known from cold-temperate, to subtropical climates, and from salinities ranging from 13 to 40 PSU. |
Habitat modifying ability potential (?) | Unknown Comments: Not available. |
Toxicity / Life stage (?) | Unknown Comments: Not available. |
Bioaccumulation association (?) | Unknown Comments: Not available. |
Known human health impact? | Not known Comments: Not available. |
Known economic impact? | Not known Comments: Not available. |
Known measurable environmental impact? | Known References: Shiraki, S., Kakui, K. 2022. Observations on Predation in Paranthura japonica Richardson, 1909 (Isopoda: Cymothoida: Paranthuridae). Zoological science, 39(3), pp. 270-274. Comments: P. japonica will have a high impact on alien ecosystems it invades as a predator on native crustaceans. |
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 References: Marchini, A., Sorbe, J. C., Torelli, F., Lodola, A., Occhipinti-Ambrogi, A. 2014. The non-indigenous Paranthura japonica Richardson, 1909 in the Mediterranean Sea: travelling with shellfish?, Mediterranean Marine Science, 15(3), pp. 545-553. Comments: P. japonica is likely to be co-transported with the fouling communities on ship hulls, rather than in ballast waters or in ballast tank sediments. |
Created by | Anna Occhipinti, 2014-12-20 |
Last update by | Sandra Gečaitė, 2024-07-22 |