Eleotris sandwicensis

Short description: Species of fish

Eleotris sandwicensis

Conservation status

Data Deficient (IUCN 3.1)[1]

Scientific classification
Kingdom:  | Animalia
Phylum:  | Chordata
Class:  | Actinopterygii
Order:  | Gobiiformes
Family:  | Eleotridae
Genus:  | Eleotris
Species:  |

E. sandwicensis

Binomial name
Eleotris sandwicensis

Vaillant & Sauvage, 1875

ʻoʻopu akupa (Eleotris sandwicensis) in its natural environment on Kauaʻi, Hawaiʻi

Eleotris sandwicensis, the Sandwich Island sleeper, Hawaiian sleeper or oopu, is a species of fish in the family Eleotridae endemic to the Hawaiian Islands, where it can be found in marine, fresh, and brackish waters around the coast. Due to this capability of migrating between different marine environments, they are amphidromous.[2] This fish can reach a length of 33 cm (13 in). It is locally important to commercial fisheries and is also used as bait by fishermen after larger fishes.[3] In the Hawaiian language, the fish is also known as oʻopu, ʻoau, ʻowau, and hiʻu kole.

The distribution of E. sandwicensis is limited as this species does not have the ability to travel upstream of steep waterfalls.[4] This is due to their lack of pelvic fins.[4]

## References

1. ↑ NatureServe (2013). "Eleotris sandwicensis". IUCN Red List of Threatened Species 2013: e.T7134A3137134. doi:10.2305/IUCN.UK.2013-1.RLTS.T7134A3137134.en. https://www.iucnredlist.org/species/7134/3137134. Retrieved 17 November 2021.
2. ↑ Sim, Tara (December 2006). "Reproductive Biology of Eleotris Sandwicensis, a Hawaiian Stream Gobioid Fish". https://scholarspace.manoa.hawaii.edu/bitstream/10125/20935/M.S.Q111.H3_4141 DEC 2006_r.pdf.
3. ↑ Froese, Rainer and Pauly, Daniel, eds. (2013). "Eleotris sandwicensis" in FishBase. April 2013 version.
4. ↑ 4.0 4.1 Alda, F.; Gagne, R. B.; Walter, R. P.; Hogan, J. D.; Moody, K. N.; Zink, F.; McIntyre, P. B.; Gilliam, J. F. et al. (2016-07-21). "Colonization and demographic expansion of freshwater fauna across the Hawaiian archipelago". Journal of Evolutionary Biology 29 (10): 2054–2069. doi:10.1111/jeb.12929. ISSN 1010-061X. https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/jeb.12929.

## External links

* Photograph

Wikidata ☰ Q533825 entry

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