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Bluegray mbuna (Melanochromis johannii) fish species and information / pictures of Bluegray mbuna - Melanochromis johannii

Bluegray mbuna (Melanochromis johannii) fish species information

Scientific Name
Melanochromis johannii

Common Name
Bluegray mbuna

Biology
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 (Ref. 44091).

Classification

Classified By

Eccles, 1973

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cichlids (Cichlidae)

Distribution

Region

Africa

Distribution

Africa: endemic to Lake Malawi. Occurs in Masinje Rocks, Cape Ngombo.

Range

13°S - 14°S

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 8.0 - 8.0; dH range: 9 - 19 benthopelagic

Trophic Level

2 s.e. 0.00 Based on diet studies.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

10.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Aquarium: commercial

Vulnerability

Low vulnerability (12 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Fec

Threat To Humans

Harmless

IUCN Red List Status

Vulnerable (VU) (D2)