Benthic-pelagic species of coastal waters which may enter rivers . Apparently confined to fresh waters, ascending rivers with moderate currents . More abundant near the outlets of rivers and creeks, but not in brackish or marine waters. Reaches at least 640 m elevation and inhabits currents of low to moderate velocity. Feed on crustaceans and fish . Marketed fresh .
Body oblong, somewhat compressed, and not deep (depth contained 3.1 to 3.8 times in standard length); mouth large, terminal, and almost horizontal, its posterior edge located at the same level as the anterior rim of the eye; first gill arch with 7 to 9 gill rakers; dorsal fin notched, with 12 to 13 spines and 12 soft rays (XII-XIII, 12); pectoral fins short, not reaching distal edge of pelvic fins; second anal spine longer and thicker than third; back olive green; belly silvery; entire body iridescent .: fusiform / normal.
Behavioural data for Purplemouth grunt is currently being reviewed.
Oviparous, distinct pairing during breeding .
Marine; freshwater; brackish; benthopelagic. Tropical; 21°C - 30°C ; 37°N - Central and South America: Pacific drainages from Baja California, Mexico to Peru.
crustaceans and fish (Ref
Use barbless hooks, minimise air exposure, and revive fish head-first in current before release.
⚠️ Slot limits protect breeding-size fish. Verify daily bag limits.
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