Environment: milieu / climate zone / depth range / distribution range
Marine; freshwater; brackish; demersal; amphidromous (Ref. 46888); depth range 1 - 16 m (Ref. 28077), usually - m (Ref. ). Subtropical; 0°C - ; 25°S - 31°S
Africa: southern Mozambique to Durban, South Africa (Ref. 2798), recorded from Madagascar.
Length at first maturity / Size / Weight / Age
Maturity: Lm 3.0  range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 4343)
soft rays: 12. Dark bar under eye; tan in color, with dark spots above; sides with 6-10 vertical bars; large specimens with black margined dorsal and anal fins; caudal fin with oblique bands (Ref. 2798).
Restricted to sandy, quiet water areas and is unable to form burrows where the substrate is disturbed by water movements, is muddy or consists of sand with a particle diameter > 0.5 mm. Food consists of slow moving benthic organisms like chironomid larvae, gastropods, bivalves and amphipods. On exposed shores, they occur deeper than 3.5 m (Ref. 28077, 2798). Occasionally intertidal.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maugé, L.A., 1986. Gobiidae. p. 358-388. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 4343)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 23.6 - 25.1, mean 24.9 °C (based on 35 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00332 - 0.01511), b=3.08 (2.90 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.45 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .