Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Synbranchiformes (Spiny eels) > Mastacembelidae (Spiny eels)
Etymology: Macrognathus: Greek, makros = great + Greek, gnathos = jaw (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; brackish; benthopelagic. Tropical, preferred ?; 10°N - 4°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Pakistan, India, Sri Lanka, Bangladesh, Nepal and Myanmar.

Length at first maturity / Size / Weight / Age

Maturity: L_m ?, range 14 - 18 cm
Max length : 63.5 cm TL male/unsexed; (Ref. 7308)

Short description Morphology | Morphometrics

Dorsal spines (total): 16 - 23; Dorsal soft rays (total): 44-45. Caudal fin rays 15 and caudal fin distinctly separated from dorsal and anal fins (Ref. 97143).

Occurs in running and stagnant waters (Ref. 4833). Found in fresh and brackish waters and deltas of large rivers, common in ponds and slow flowing rivers with vegetation in plains (Ref. 41236). Inhabits still waters with silt or mud substrate. Believed to be common in rice paddy fields. Nocturnal feeder, on insects and worms.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Deposits eggs on algal masses. Eggs hatch in 1-2 days. Demersal eggs are pale green and 1.3 mm in diameter (Ref. 6028).

Main reference Upload your references | References | Coordinator | Collaborators

Pethiyagoda, R., 1991. Freshwater fishes of Sri Lanka. The Wildlife Heritage Trust of Sri Lanka, Colombo. 362 p. (Ref. 6028)

IUCN Red List Status (Ref. 109396)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00282 (0.00126 - 0.00629), b=2.96 (2.77 - 3.15), based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.1 ±0.33 se; Based on food items.

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 250).

Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100) .

Price category (Ref. 80766): Unknown.

Macrognathus aral (Bloch & Schneider, 1801)