The species Johnius sina (Cuvier, 1830) is considered as valid in Ref. 122871.
Environment: milieu / climate zone / depth range / distribution range
Marine; brackish; demersal; oceanodromous (Ref. 51243); depth range 5 - 50 m (Ref. 122858). Tropical; 26°N - 8°N
Indian Ocean: Pakistan to the Andaman Islands. Records outside this area are probably misidentifications (e.g. of Johnius dorsalis in Africa).
Length at first maturity / Size / Weight / Age
Maturity: Lm 11.5, range 11 - 16.5 cm
Max length : 40.0 cm TL male/unsexed; (Ref. 30573); common length : 14.0 cm SL male/unsexed; (Ref. 13679)
Found in coastal waters. Enters estuaries (Ref. 4833). Feeds on invertebrates and small fishes (Ref. 30573). Marketed fresh, dried salted.
Talwar, P.K. and A.G. Jhingran, 1991. Inland fishes of India and adjacent countries. Volume 2. A.A. Balkema, Rotterdam. (Ref. 4833)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Fisheries: minor commercial
Estimates based on models
Preferred temperature (Ref. 115969
): 24.7 - 29.1, mean 28.3 °C (based on 1056 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00851 (0.00676 - 0.01072), b=3.06 (3.03 - 3.09), in cm total length, based on LWR estimates for this species (Ref. 93245
Trophic level (Ref. 69278
): 4.1 ±0.70 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.9; tmax=6.7; Fec=12,744).
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .