Actinopterygii (ray-finned fishes) >
Perciformes (Perch-likes) >
Gobiidae (Gobies) > Gobiinae
Etymology: Silhouettea: Named by Smith (1959) for the type locality, the island of Silhouette in the Seychelles (Ref. 78591:297).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; freshwater; brackish; demersal; amphidromous (Ref. 46888); depth range 1 - 20 m (Ref. 7248). Subtropical; 25°S - 27°S
Africa: Lake St. Lucia (Ref. 11228), Lake Sibayi and Kosi Bay, South Africa (Ref. 7248).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 2798)
Dorsal
spines
(total): 7;
Dorsal
soft rays
(total): 11;
Anal
spines: 1;
Anal
soft rays: 13. Body pale with red and brown flecks; series of small black spots along mid side; anterior portion of 1st dorsal fin dusky; pelvic and anal fin margins normally black (Ref. 2798).
A cryptic species occurring on sandy bottoms (Ref. 4343). Found over sand in shallow littoral areas to about 20 m depth (Ref. 7248). Buries its body in the sand, uses first dorsal fin for display and possibly as a lure to attract prey (Ref. 7248).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Skelton, P.H., 1993. A complete guide to the freshwater fishes of southern Africa. Southern Book Publishers. 388 p. (Ref. 7248)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Not Evaluated
Threat to humans
Harmless
Human uses
More information
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82805): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00610 - 0.02063), b=3.13 (2.97 - 3.29), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref.
59153): Low vulnerability (10 of 100) .