Actinopteri (ray-finned fishes) > Aulopiformes
(Grinners) > Synodontidae
(Lizardfishes) > Harpadontinae
Etymology: Harpadon: Greek, arpedon, -es = net, bow, knot (Ref. 45335). More on author: Hamilton.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; benthopelagic; oceanodromous (Ref. 51243); depth range 50 - ? m (Ref. 9987). Tropical; 31°N - 12°S, 40°E - 153°E (Ref. 54462)
Indo-West Pacific: Somalia to Papua New Guinea, north to Japan and south to Indonesia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 13 - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 3417); common length : 25.0 cm TL male/unsexed; (Ref. 30573)
Inhabit deep water offshore on sandy mud bottom for most of the year, but also gathers in large shoals in deltas of rivers to feed during monsoons (Ref. 9987, 11230). Spawn 6 batches of broods per year (Ref. 43449). An aggressive predator (Ref. 9987). Primarily caught along Maharashtra with the bag-net, better known as 'dol' net. Operation of this gear is timed to a strong tidal current. The bag with the mouth set against the current strains the fish which is being retained therein by the strength of the current. The net is thus retrieved before the tide turns. Very phosphorescent. Excellent food fish. Marketed fresh and dried or salted; consumed pan-fried (Ref. 9987).
Whitehead, P.J.P., 1984. Harpadontidae. In W. Fischer and G. Bianchi (eds.) FAO species identification sheets for fishery purposes. Western Indian Ocean fishing area 51. Vol. 2. [pag. var.]. FAO, Rome. (Ref. 3417)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: highly commercial
Estimates based on models
Preferred temperature (Ref. 115969
): 16.8 - 26, mean 21.2 °C (based on 405 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00313 - 0.00531), b=3.16 (3.09 - 3.23), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.74 se; based on food items.
Generation time: 1.5 (1.2 - 2.1) years. Estimated as median ln(3)/K based on 10 growth studies.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (K=0.18-0.9; Fec=89,600).
Prior r = 1.16, 95% CL = 0.77 - 1.75, Based on 5 stock assessments.
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .
Nutrients (Ref. 124155
): Calcium = 94.5 [38.7, 327.5] mg/100g ; Iron = 0.416 [0.196, 1.181] mg/100g ; Protein = 11.4 [9.0, 15.3] % ; Omega3 = 0.177 [0.064, 0.482] g/100g ; Selenium = 27.1 [9.7, 77.0] μg/100g ; VitaminA = 8.84 [2.36, 34.40] μg/100g ; Zinc = 0.493 [0.284, 1.252] mg/100g (wet weight); based on nutrient studies.