Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water; brak water demersaal; amfidroom (Ref. 138280). Tropical; 22°N - 19°N
Oceania: Hawaii. Reported from USA (Ref. 3881).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 33.0 cm SL mannelijk / geslacht onbekend; (Ref. 44091)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
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).
Body shape (shape guide): elongated.
Adults are 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).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Tinker, S.W., 1978. Fishes of Hawaii, a handbook of the marine fishes of Hawaii and the Central Pacific Ocean. Hawaiian Service Inc., Honolulu. 568 p. (Ref. 583)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: commercieel; aas: usually
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01259 (0.00643 - 0.02466), b=3.18 (3.01 - 3.35), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.9 ±0.3 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Moderate to high vulnerability (49 of 100). 🛈 |
Prijsklasse (Ref. 80766) |
Unknown.
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