Ariakehimeshirauo
The ariakehimeshirauo, Neosalanx reganius, is a species of icefish in the family Salangidae endemic to Japan. It is only known from Midori and Chikugo Rivers in Kyushu. Its maximum total length is 63 mm (2.5 in), and has a lifespan of about one year.[2] It seems to be relatively rare in its limited habitat,[3] and is classified as an endangered species by IUCN.[1]
| Ariakehimeshirauo | |
|---|---|
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Osmeriformes |
| Family: | Salangidae |
| Genus: | Neosalanx |
| Species: | N. reganius |
| Binomial name | |
| Neosalanx reganius Wakiya & N. Takahashi, 1937 | |
N. reganius is an estuarine species, usually found in turbid waters with low salinity, or in fresh water. It is a planktivore. Relative to its size, it is highly fecund (347–1071 eggs per female), and the ovaries of gravid females made up 44% of their total body weight, on average.[3]
References
- Miyazaki, Y.; Nakajima, J.; Takaku, K.; Taniguchi, Y. (2019). "Neosalanx reganius". IUCN Red List of Threatened Species. 2019: e.T14562A174780174. doi:10.2305/IUCN.UK.2019-2.RLTS.T14562A174780174.en. Retrieved 17 November 2021.
- Takita, T. (1996). "Threatened fishes of the world: Neosalanx reganius Wakiya & Takahashi, 1937 (Salangidae)". Environmental Biology of Fishes. 47: 100. doi:10.1007/BF00002383.
- Islam, M. S.; Hibino, M.; Ohta, T.; Nakayama, K.; Tanaka, M. (2006). "Environmental effect on diet, fecundity and condition of an endangered fish Neosalanx reganius(Osmeriformes) in the Chikugo Estuary, in the upper Ariake Bay, Japan". Aquatic Living Resources. 19: 59–68. doi:10.1051/alr:2006005.
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