![]() |
AquaNISInformation system on aquatic non-indigenous and cryptogenic species |
Species | Caprella mutica [WoRMS] | |
Authority | Schurin, 1935 | |
Family | Caprellidae | |
Order | Amphipoda | |
Class | Malacostraca | |
Phylum | Arthropoda | |
Synonym (?) | Japanese Skeleton Shrimp | |
Sub-species level (?) | Not entered |
Native origin (?) | Country: Russia --> LME: 50. Sea of Japan / East Sea References (not structured): Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. Comments: Peter the Great Bay, Vladivostok, Russia |
Life form / Life stage (?) |
|
Sociability / Life stage (?) |
|
Reproductive frequency (?) | Iteroparous References (not structured): Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. Comments: Females are highly fecund, producing their first brood approximately 53 days post-hatching. Each female has an average of two sequential broods released at approximately 20 day intervals. |
Reproductive type (?) | Sexual |
Developmental trait (?) | Brooding Direct development References: Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. |
Characteristic feeding method / Life stage (?) |
References (not structured): Cook EJ, Willis KJ, Lozano-Fernandez M (2007) Survivorship, growth and reproduction of the non-native Caprella muticaSchurin, 1935 (Crustacea: Amphipoda). Hydrobiologia 590:55–64 Comments: In general, C. mutica was observed to adopt a variety of feeding modes depending on the diet type available. When fed the macroalgae Fucus vesiculosus, caprellids were observed scraping the surface of the algae. In contrast, when fed the crushed salmon feed, which typically floated in the water column and when held in the container with no additional feed the caprellids were observed filter-feeding. The caprellids were also observed scavenging on the larger fragments of salmon feed and on dead caprellids lying on the base of the container. |
Mobility / Life stage (?) |
Comments: The species lives attached to hard substrata (bryozoans, algae, ...) |
Salinity tolerance range (?) | Exact range: 19 - 35 References: Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. Comments: It tolerates salinities down to 19 psu over a short (48 h) exposure period |
Habitat modifying ability potential (?) | Autogenic ecosystem engineers References: Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. Comments: C. mutica is an aggressive species, out-competing the native European caprellid Caprella linearisfor space, even at low densities |
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: AquaNIS. Editorial Board, 2015. Information system on Aquatic Non-Indigenous and Cryptogenic Species. World Wide Web electronic publication. www.corpi.ku.lt/databases/aquanis. Version 2.36+. Accessed 2021-09-02. Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. Daneliya, M. E., & Laakkonen, H. (2012). The Japanese skeleton shrimp Caprella mutica (Amphipoda: Caprellidae) in Sweden (Eastern Skagerrak). Marine Biodiversity Records, 5. Comments: Out-competes native caprellids (Cook et al., 2007). |
Included in the Target Species list? | Yes Comments: Assessed by the COMPLETE project experts (2021), included in target species list. |
Association with vessel vectors (?) | Ballast waters Biofouling References: Cook EJ, Jahnke M, Kerckhof F, Minchin D, Faasse M, Boos K, Ashton G (2007) European expansion of the introduced amphipod Caprella mutica Schurin 1935. Aq Inv 2: 411-421. Comments: Many of the areas in Europe where C. mutica has been introduced are close to busy ports suggesting that ballast water transport and/ or hull fouling could be involved. Recreational boating can also represent an important vector of transport. Within its native environment, C. mutica may be found attached to the macroalgae Ulva spp. and the filamentous Cladophora spp. and these are regularly found attached to ships hulls. |
Molecular information | Not entered |
Last update by | Monika Pelėdienė, 2022-01-18 |