The species Johnius sina (Cuvier, 1830) is considered as valid in Eschmeyer (CofF ver. Jul. 2010: Ref. 84883) according to Khan (2003: Ref. not in FB).
Environment / Climate / Range
Marine; brackish; demersal; oceanodromous (Ref. 51243); depth range ? - 40 m (Ref. 30573). Tropical, preferred ?
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. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: minor commercial
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00391 - 0.01767), b=3.10 (2.94 - 3.26), based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.1 ±0.70 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (K=0.9).
Vulnerability (Ref. 59153
): Low vulnerability (20 of 100) .