Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Serranidae
(Sea basses: groupers and fairy basslets) > Serraninae
Etymology: Cratinus: Latin, cratis, -is = grating, grille (Ref. 45335). More on author: Steindachner.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 1 - 12 m (Ref. 55763). Tropical
Eastern Pacific: Ecuador to southern Peru. Also in the Eastern Central Pacific (Ref. 9342).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm TL male/unsexed; (Ref. 55763); common length : 30.0 cm TL male/unsexed; (Ref. 55763)
Body elongate, not very deep, and little compressed; upper jaw lacking supramaxilla; teeth firmly placed; not folding back; lower branch of first gill arch with 12 to 15 gill rakers; 3 or 4 dorsal fin spines prolonged and filamentous; pelvic fins inserted slightly behind pectoral fins; anal fin with 7 soft rays; back light brown; belly pale; pectoral fins and prolonged dorsal spines reddish brown (Ref. 55763).
Found in mangrove areas as well as shallow inlets and bays (Ref. 5227).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
CENAIM, 1992. A field guide to the edible fishes and shellfishes in coastal waters of Ecuador. Centro Nacional de Acuicultura e Investigaciones Marinas (CENAIM), Ecuador. 95 p. (Ref. 11035)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 23.5 - 29.1, mean 27.6 (based on 151 cells).
Phylogenetic diversity index (Ref. 82805
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00528 - 0.02278), b=3.06 (2.89 - 3.23), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.73 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (49 of 100) .