Actinopteri (ray-finned fishes) > Ovalentaria/misc
(Various families in series Ovalentaria) > Ambassidae
Etymology: Ambassis: Derived from Greek, anabasis = climbing up (Ref. 45335).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal; depth range ? - 2 m (Ref. 86942). Tropical; 22°C - 30°C (Ref. 2059); 31°N - 24°S, 102°E - 177°W
Western Pacific: Thailand to Indonesia and the Philippines (Ref. 12693), New Guinea (Ref. 2847) and the Ryukyu Islands (Ref. 559).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm TL male/unsexed; (Ref. 7050)
(total): 7 - 8;
soft rays: 8 - 9. Cheek scales in 2 rows. Lateral line strongly curved midway and runs long with a silvery mid-lateral band. Lower margin of interoperculum with a single spine.
Adults occur in brackish mangrove estuaries and lower reaches of freshwater streams (Ref. 2847, 37816). Probably feed on small insects, crustaceans and other invertebrates. Not seen in markets (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., 1991. Field guide to the freshwater fishes of New Guinea. Publication, no. 9. 268 p. Christensen Research Institute, Madang, Papua New Guinea. (Ref. 2847)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00506 - 0.02993), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.43 se; based on food items.
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).
Nutrients (Ref. 124155
): Calcium = 624 [289, 1,232] mg/100g ; Iron = 1.87 [1.09, 3.79] mg/100g ; Protein = 17.5 [15.8, 19.1] % ; Omega3 = 0.643 [0.302, 1.408] g/100g ; Selenium = 47.5 [19.9, 109.2] μg/100g ; VitaminA = 34.9 [11.6, 110.7] μg/100g ; Zinc = 2.23 [1.32, 3.54] mg/100g (wet weight);