Johnston's topminnow
📖 Overview
Found near the surface and among weeds in which it seeks refuge and food . Prefers standing or gently flowing water as in river backwaters, floodplains , swamps , creeks and pools . Usually found in small shoals near the surface, among fringing vegetation; usually abundant when present . It feeds on small invertebrates like mosquito larvae and daphnia . A serial spawner, laying eggs which attach to vegetation . When food is abundant, breeding occurs daily over an extended period (year-round where conditions are suitable) . 6 cm max TL . Not a seasonal killifish. Is difficult to maintain in aquarium .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 6 - 8; Anal spines: 0; Anal soft rays: 11 - 14. : elongated.
🌀 Behaviour
Behavioural data for Johnston's topminnow is currently being reviewed.
🦐 Diet
Diet information for Johnston's topminnow is currently being compiled.
🥚 Reproduction
Reproduction data for Johnston's topminnow is currently being compiled.
🌍 Habitat & Distribution
Freshwater; benthopelagic; pH range: 6.5 - 7.2; non-migratory. Tropical; 18°C - 26°C ; 10°S - 28°S South Africa and southeastern Democratic Republic of the Congo (Ref.
🌿 Ecology
small invertebrates like mosquito larvae and daphnia (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Johnston's Lampeye · Johnston's Topminnow · Killifish · Slender Topminnow · Topminnow |
| 🌍AFR | Johnston se Lampogie |
| 🇩🇪German | Johnstons Leuchtaugenfisch |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Aplocheilichthys johnstoni | Günther | 1894 | Synonym |
| Aplocheilus johnstoni | Günther | 1894 | Synonym |
| Haplochilichthys johnstoni | Günther | 1894 | Synonym |
| Haplochilus johnstoni | Günther | 1894 | Synonym |
| Lacustricola johnstoni | Guenther | 1894 | Synonym |
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 166 records indexed .
👥 Community & Contribute
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