Actinopteri (ray-finned fishes) > Acropomatiformes
(Oceanic basses) > Epigonidae
Etymology: Epigonus: Greek, epi = over, in front + Greek, gonio = angle (Ref. 45335); mayeri: Named for Dr. Garry F. Mayer (NOAA, National Marine Fisheries Service) for his many epigonid studies.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range - 396 m (Ref. 86804), usually - m (Ref. ). Tropical; 0°C -
Eastern Central Atlantic: Angola.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.4 cm SL (female)
Morphology | Morphometrics
Vertebrae: 25. This species is distinguished by the following set of characters: a pungent opercular spine; rib present on the last abdominal vertebra; no teeth on palatine and tongue; mustache-like process sharp-pointed; pectoral fin reaching to vertical line from anus; orbital diameter longer than postorbital length; gill rakers 7-8 + 22-23 = 29-31; vertebrae 10 + 15; total pored lateral-line scales 47-50 (hypural end 46-47 + caudal fin 4); D VII-I,9; A II, 9; pectoral-fin rays 17-18; pyloric caeca 5; head length 37.8-38.0% SL; orbital diameter 16.4-17.0% SL; pectoral-fin length 22.2-23.0% SL; lower jaw length 16.7-17.0% SL (Ref. 86804).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Okamoto, M., 2011. A new species of deepwater cardinalfish, Epigonus mayeri, from the eastern Central Atlantic, and redescription of Epigonus heracleus Parin and Abramov 1986 (Perciformes: Epigonidae). Ichthyol. Res. 58(2):101-108. (Ref. 86804)
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=0.00589 (0.00244 - 0.01420), b=3.12 (2.91 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.4 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (29 of 100) .