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Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Silhouettea: Named by Smith (1959) for the type locality, the island of Silhouette in the Seychelles (Ref. 78591:297).
Eponymy: This is a toponym; Lake Sibayi (also spelled Sibhayi), on the east coast of South Africa, is the type locality. (Ref. 128868), visit book page.

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

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Lake St. Lucia (Ref. 11228), Lake Sibayi and Kosi Bay, South Africa (Ref. 7248, 52193).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 4.0 cm SL male/unsexed; (Ref. 52193)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 11; Anal spines: 1; Anal soft rays: 13.

A cryptic species occurring on sandy bottoms (Ref. 4343). Found over sand in shallow littoral areas to about 20 m depth (Ref. 7248, 52193). Buries its body in the sand, uses first dorsal fin for display and possibly as a lure to attract prey (Ref. 7248, 52193).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Skelton, P.H., 2001. A complete guide to the freshwater fishes of southern Africa. Cape Town (South Africa): Struik Publishers, 395 p. (Ref. 52193)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Endangered (EN) (B1ab(iii)+2ab(iii)); Date assessed: 25 January 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01380 (0.00768 - 0.02482), b=3.09 (2.93 - 3.25), 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.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Silhouettea sibayi Farquharson, 1970