Actinopteri (ray-finned fishes) > Cyprinodontiformes
(Rivulines, killifishes and live bearers) > Anablepidae
(Four-eyed fishes, onesided livebearers & white-eye) > Oxyzygonectinae
Etymology: Oxyzygonectes: Greek, oxy = sharp + Greek, zygon = yoke + Greek, nekton = swimmer (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; brackish; demersal; non-migratory. Tropical; 27°C - 30°C (Ref. 36880)
Central America: Pacific drainages, between Poneloya, Nicaragua and Río Salado on the Azuero Peninsula, Panama.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 27139)
Many inhabit brackish waters, found in rivers of low elevation, up to 15 m above seal level. Feed on detritus, algae and sometimes on terrestrial insects (Ref. 36880). 35 cm max TL (Ref. 2059). Not a seasonal killifish. Has been bred in captivity (Ref. 41756).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Huber, J.H., 1996. Killi-Data 1996. Updated checklist of taxonomic names, collecting localities and bibliographic references of oviparous Cyprinodont fishes (Atherinomorpha, Pisces). Société Française d'Ichtyologie, Muséum National d'Histoire Naturelle, Paris, France, 399 p. (Ref. 27139)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.5 ±0.26 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100).