Scientific Name
Acaronia nassa

Common Name
Bigeye cichlid

Biology
Collected from a small creek, quite sunny, with amber-colored water, slow current, muddy substrate and approximately 1 m in depth. Solitary. Feeds on shrimps, insect larvae of Odonata, Coleoptera and Hemiptera, as well as on fishes like cyprinodonts, characids. Males are bigger than females. Reproduction occurs during the rainy season. Found together with Pterophyllum scalare, Heros efasciatus, Hypselecara temporalis, and Mesonauta guyanae (Ref. 35237). Maximum length 25 cm TL (Ref. 2060).

Classification

Classified By

Heckel, 1840

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cichlids (Cichlidae)

Distribution

Region

South America

Distribution

South America: Amazonas lowlands in Peru, Brazil, and Colombia, Bolivian Amazon basin, middle and lower Negro River, Branco River, also Amap? (Brazil), the Oyapock drainage in French Guiana, and the Essequibo drainage in Guyana.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

25 °C

Water Temperature To

28 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; ; pH range: 7.0 - ? ; dH range: 12 - 15 benthopelagic

Trophic Level

3.65 s.e. 0.57 Based on food items.

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

15.4 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; gamefish: yes; aquarium: commercial

Vulnerability

Low vulnerability (22 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated