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Aequidens tetramerus  (Heckel, 1840)

Saddle cichlid
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Native range | All suitable habitat
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Aequidens tetramerus   AquaMaps   Data sources: GBIF OBIS
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Aequidens tetramerus
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Cichlasomatinae
Etymology: Aequidens: Latin, aequus, equal, equally + Latin, dens, dentis = teeth (Ref. 45335).

Environment / Climate / Range Ecology

Freshwater; benthopelagic; pH range: 4.9 - 7.5; dH range: 1 - 13.5.   Tropical; 24°C - 26°C (Ref. 1672)

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

South America: widely distributed in the Amazon River basin in Peru, Colombia, Ecuador, Brazil and Bolivia. Also in the Tocantins and Parnaíba rivers, French Guiana, Suriname, Guyana, and in the Orinoco River basin of Venezuela and Colombia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 16.2 cm SL male/unsexed; (Ref. 36377)

Biology     Glossary (e.g. epibenthic)

One of the most colorful species of the genus, especially during its reproductive period. Frequently occurs in zones with little current and over a substrate covered with vegetal debris (Ref. 27188). Caught frequently but not abundantly in most varied biotopes- in small creeks and flooded zones with clear, shallow and slow flowing water. Feeds primarily on insects, secondarily on fishes and plants. Very territorial. During reproduction, males attain a deeper coloration. About 1,000 eggs are released during spawning. Spawning takes place on stone or wood. Parents take care of juveniles (Ref. 35237). Maximum length 25 cm TL (Ref. 1672).

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

Produces a minimum of 1000 eggs (Ref. 1672).

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

Kullander, S.O. and H. Nijssen, 1989. The cichlids of Surinam: Teleostei, Labroidei. E.J. Brill, Leiden, The Netherlands. 256 p. (Ref. 26372)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Ecology
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Common names
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Predators
Ecotoxicology
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Spawning
Fecundity
Eggs
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Morphometrics
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01622 (0.00862 - 0.03051), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.50 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec=1,000).
Vulnerability (Ref. 59153):  Low vulnerability (23 of 100) .
Price category (Ref. 80766):   Unknown.