Bluegray mbuna
📖 Overview
Bluegray mbuna (Pseudotropheus johannii) is a ray-finned fish of the family Cichlidae. It inhabits freshwater waters. This species can reach a maximum total length of 10 cm. With a trophic level of 2, it is a herbivore or detritivore. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Males are brilliant sky blue to dark blue; the colors show a "checkerboard" pattern with alternating light and dark patches; several light-colored "egg spots" on their anal fin; females and juveniles bright yellow-orange in color .: fusiform / normal.
🌀 Behaviour
Behavioural data for Bluegray mbuna is currently being reviewed.
🦐 Diet
🥚 Reproduction
Maternal mouthbrooders; males establish territories and maintain a harem of females; female deposits eggs and picks them up in the mouth for incubation; male spreads out his anal fin showing the "eggs pots"; the females mistake these spots for her eggs and try to also take them inside her mouth; the male then releases his milt and the female takes them in, thus fertilizing the eggs inside her mouth .
🌍 Habitat & Distribution
Freshwater; benthopelagic; pH range: 8.0 - 8.0; dH range: 9 - 19; non-migratory . Tropical; 22°C - 25°C ; 13°S - 14°S endemic to Lake Malawi.
🌿 Ecology
both plant and animal matter (Ref
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🌐 Names & Taxonomy
| Language | Common Names |
|---|---|
| 🇬🇧English | Bluegray Mbuna · Electric Blue Johanni · Electric Blue Johanni Cichlid · Johanni · Johanni Cichlid |
| 🌍CES | tlamovec Johannův |
| 🌍EST | Johanni ebambuuna · Johanni tumembuuna |
| 🇫🇮Finnish | sinijuovamalawinahven |
| 🇪🇸Spanish | Cíclido yohani |
Scientific Synonyms
| Scientific Name | Author | Year | Status |
|---|---|---|---|
| Melanochromis johanni | Eccles | 1973 | Synonym |
🦠 Common Diseases
The following diseases are known to affect Bluegray mbuna.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .
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