Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Geophaginae
Etymology: Geophagus: Greek, gea = the earth + Greek, phagein = to eat (Ref. 45335); crocatus: From the Latin adjective crocatus, meaning saffron yellow, in reference to the yellow operculum on
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; pH range: 4.1 - 7.1; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 25°C - 33°C (Ref. 95093)
South America: Berbice River, above and below the rapids at Itabru Falls in Guyana.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.6 cm SL male/unsexed; (Ref. 95093)
Morphology | Morphometrics
soft rays: 7 - 8;
Vertebrae: 32 - 33. Differs from Geophagus grammepareius, G. taeniopareius, G. argyrostictus, G. gottwaldi and G. harreri by its incomplete suborbital stripe (vs. complete). Can be further diagnosed from G. abalios, G. brokopondo, G. surinamensis, G megasema, G camopiensis, G. altifrons, G. parnaibae, G. sveni, and G. neambi by having an incomplete suborbital stripe formed by a preopercular black mark (vs. absent). The lateral bar pattern of Geophagus crocatus distinguishes this species from all other congeners. The bar pattern is formed by 6 vertical bars on the flank, with bars 2 and 3 uniquely fused dorsally at the base of the spiny dorsal fin between spines 9 and 10. Distinguished from all members of the G. surinamensis complex with incomplete suborbital markings by the presence of 6 lateral bars (vs. absent in G. proximus and G. brachybranchus, 4 bars in G. winemilleri, and 7 bars in G. dicrozoster (Ref. 95093).
Inhabits black water river, running through thick gallery forest. Mostly found abundat in areas of sluggish water with sandy bottoms and relatively little forest cover (Ref. 95093).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hauser, F.E. and H. López-Fernández, 2013. Geophagus crocatus, a new species of geophagine cichlid from the Berbice River, Guyana, South America (Teleostei: Cichlidae). Zootaxa 3731(2):279-286. (Ref. 95093)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.00850 - 0.04473), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.3 ±0.1 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (23 of 100) .