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Eleotris sandwicensis in Hawaii (USA)
Sandwich Island sleeper

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Eleotris sandwicensis   Vaillant & Sauvage, 1875
Family:	Eleotridae (Sleepers) , subfamily: Eleotrinae			picture (Elsan_u1.jpg) by Stender, K.
Order:	Perciformes  (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Sandwich Island sleeper
Max. size:	33.0 cm SL (male/unsexed; Ref. 44091)
Environment:	demersal; amphidromous
Climate:	tropical; 22°N - 19°N
Global Importance:	fisheries: commercial; bait: usually
Resilience:	Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Distribution:	Oceania: Hawaii. Reported from USA (Ref. 3881).
Diagnosis:	Generally brown to black in color; pelvic fins separate rather than fused into a disc; young fish <2.5 cm long are distinctively jet black on the upper body and lighter on the sides and belly (Ref. 44091).
Biology:	Found in both altered and unaltered streams, but being unable to climb waterfalls restricts its habitat to the lower reaches of streams and estuaries; can be observed darting into the mud and leaf litter, or sheltering among rocks and cobble, rarely showing in the open; highly predaceous on various invertebrates, e.g. slow-moving thiarid snails and asiatic clams, and fishes; traditionally caught with a baited hook attached to a short stick (fishing method called kiomo'omo); relished as a food item, particularly when wrapped with leaves and roasted; now prized as bait by near-shore papio fisherman (Ref. 44091)
Threatened:	Data deficient, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Tinker, S.W.. 1978. (Ref. 583)
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Hawaii (USA) country information
Common names:	Sandwich Island sleeper, 'O'opu akupa, Hawaiian sleeper, O'opu		Ref:  Mundy, B.C., 2005
Status:	native		Ref:  Tinker, S.W., 1978
Salinity:	freshwater, brackish
Abundance:	abundant (always seen in some numbers)		Ref:  Yamamoto, M.N. and A.W. Tagawa, 2000
Importance:	commercial		Ref:  Yamamoto, M.N. and A.W. Tagawa, 2000
Uses:	no uses
Comments:	Found on all the islands but especially abundant in O'ahu (Ref. 44091); also reported from the mixohaline ponds of Kona coast (Ref. 46928). Also Ref. 58302.
Country Information:
Occurrences:	Occurrences    Point map
Main Ref:	Yamamoto, M.N. and A.W. Tagawa, 2000
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | E-book | Field guide | Length-frequency Wizard | Life-history tool |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Scirus | Tree of Life | Zoological Record Other web sites |
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	Modified:  Ortañez, Auda Kareen	Entered:  Torres, Armi G.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07