Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Haemulidae (Grunts) > Haemulinae
Etymology: Rhencus: ρογκοζ (s (snoring).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; brackish; benthopelagic; depth range 1 - 30 m. Tropical; 24°N - 2°S, 110°W - 75°W
Eastern Pacific: Mexico to Ecuador.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 37.0 cm TL male/unsexed; (Ref. 55763); common length : 20.0 cm TL male/unsexed; (Ref. 55763)
Body oblong, moderately compressed, and somewhat deep (depth contained 2.5 to 2.7 times in standard length); mouth small and terminal, its posterior end located at the same level as the anterior rim of the eye; first gill arch with 18 to 23 gill rakers; dorsal fin deeply notched, with 12 to 14 spines and 13 to 14 soft rays (XII-IV, 13-14); dorsal and anal fins with a scaly sheath, the soft portions with international scales; second anal spine much stronger and longer than third; back dark brown or gray; belly silvery; back and flanks with 4 or 5 indistinct, dark, transverse bars (sometimes absent); operculum sometimes with a small, dark spot (Ref. 55763).
Body shape (shape guide): fusiform / normal.
Found near the littoral zone of coastal waters (Ref. 9114). Penetrates estuaries (Ref. 9114). Marketed fresh (Ref. 9114). Depth range assumed (RF).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, distinct pairing during breeding (Ref. 205).
Tavera, J., A. Acero P. and P.C. Wainwright, 2018. Multilocus phylogeny, divergence times, and a major role for the benthic-topelagic axis in the diversification of grunts (Haemulidae). Molecular Phylogenetics and Evolution 121(2018):212-223. (Ref. 125434)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial
Tools
Special reports
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 26.3 - 29.1, mean 28.2 °C (based on 136 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00809 - 0.02051), b=3.07 (2.94 - 3.20), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±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 to moderate vulnerability (27 of 100).
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Nutrients (Ref.
124155): Calcium = 100 [20, 195] mg/100g; Iron = 0.829 [0.431, 1.599] mg/100g; Protein = 18.2 [16.4, 20.1] %; Omega3 = 0.225 [0.100, 0.413] g/100g; Selenium = 44.2 [24.1, 80.7] μg/100g; VitaminA = 33.7 [15.0, 75.2] μg/100g; Zinc = 1.5 [1.0, 2.2] mg/100g (wet weight);
