Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; freshwater; brackish; demersal; amphidromous (Ref. 59012); depth range 0 - 5 m (Ref. 86942). Tropical; 22°C - 28°C (Ref. 12468)
Indo-West Pacific: Philippines and Indonesia (also Sunda Is.) through to Micronesia, southern Japan, Papua New Guinea, the Solomon Islands, Vanuatu, Fiji and New Caledonia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 48637)
Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8 - 9; Vertebrae: 25. This species is distinguished by the followingcharacters: no scales between eyes and orbital ridges, IOS 0/1-3/0; jaws reaching back to below front part of eye; absence of auxiliary scales on body; body depth at anal fin origin 13-17% SL (Ref. 130228).
This species is reported to occur in many coastal streams in brackish to freshwaters and estuaries over substrates of mud, sandy mud or leaf litter and is often observed clinging upside down under dead wood, eyes facing downwards. An ambush hunter, feeding mainly on small fish and crustaceans (shrimps (Atyidae), prawns (Palaemonidae)) (Ref. 130228). .Usually found in brackish mangrove areas and in creeks and rivers, sometimes well upstream (Ref. 2847), 48637).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Keith, P. and M.I. Mennesson, 2023. Review of Butis (Teleostei: Butidae) from Indo-Pacific islands with description of three new species. Cybium 47(4):431-466. (Ref. 130228)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
Tools
Special reports
Download XML
Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 24.9 - 29.3, mean 28.6 °C (based on 2274 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00589 (0.00313 - 0.01108), b=3.04 (2.88 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 4.2 ±0.7 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
