Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Haemulidae (Grunts) > Plectorhinchinae
Etymology: Genyatremus: Greek, geny, -yos = face, jaw + Greek, trema, = aperture (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal. Tropical; 15°N -
Eastern Pacific: Mexico to Peru.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 11035); common length : 20.0 cm TL male/unsexed; (Ref. 9114)
Body compressed and deep (depth contained 2.3 to 2.7 times in standard length); mouth small and terminal with thick fleshy lips; dorsal fin with 11 spines and 13 or 14 soft rays (XI, 13-14) ; pectoral fins shorter than head, not reaching origin of anal fin; lateral line with 45 to 48 scales; scale series above lateral line parallel to it; body ash gray with 4 or 5 irregular transverse bars that fade with age; fins blackish (Ref. 55763).
Found over hard bottoms of shallow coastal waters (Ref. 9114). Marketed fresh (Ref. 9114).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Distinct pairing during breeding (Ref. 205).
McKay, R.J. and M. Schneider, 1995. Haemulidae. Burros, corocoros, chulas, gallinazos, roncos. p. 1136-1173. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9114)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 20 - 28.5, mean 25.9 °C (based on 28 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01950 (0.00846 - 0.04494), b=2.95 (2.75 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.6 ±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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (25 of 100).