Sealife guideThe smallmouth gruntHaemulon chrysargyreum

Taxonomy
  • Common name: Smallmouth grunt
  • French name: Gorette à petite bouche, gorette tibouche
  • Spanish name: Ronco boquichica
  • Scientific name: Haemulon chrysargyreum (Günther, 1859)
  • Family name: Haemulidae
  • Order name: Perciformes
  • Class name: Actinopterygii
Description
The smallmouth grunt is a medium-sized fish, typically around 6 inches long, with a maximum length of about 8 inches. The smallmouth grunt has an oblong, slightly elongated body with a silvery-gray color and each side is marked by six broad yellow longitudinal stripes. All of its fins—pelvic, dorsal, anal and caudal—are yellow. A common trait of grunts is that the inside of their mouth is red.
The smallmouth grunt has a silvery-gray body with broad yellow longitudinal stripes along each side and all of its fins are yellow
The smallmouth grunt has a silvery-gray body with broad yellow longitudinal stripes along each side and all of its fins are yellow
The smallmouth grunt’s dorsal fin has 12 spiny rays and 13 soft rays, while the anal fin usually has 3 spiny rays and 9 soft rays, occasionally 10.
Its name, smallmouth grunt, comes from having the smallest mouth of all grunt species.
In its juvenile stage, the smallmouth grunt is distinguished by a dark central longitudinal stripe running the length of its body.
Range
The smallmouth grunt is commonly found along the coasts of the Caribbean sea, the southern Gulf of Mexico and parts of the adjacent Atlantic ocean. It inhabits the tropical waters of the western Atlantic, ranging from southern Florida in the north to the coasts of Brazil in the south, including the coasts of Central America and the islands of the Caribbean, such as the Keys, the Bahamas and Guadeloupe.
Habitat
Smallmouth grunts typically live in shallow waters from the surface down to about 100 feet. They often form schools around coral reefs, positioning themselves near the bottom, along rocks, sheltered under rock overhangs or the large branches of elkhorn coral.
Diet
The smallmouth grunt is a carnivorous fish that hunts at night. Its diet consists mainly of small invertebrates, such as shrimp, mollusks, and marine worms.
In the marine food chain, the smallmouth grunt is preyed upon by larger fish that inhabit coral reefs, like groupers.
Reproduction
Smallmouth grunts reproduce sexually.
Did you know ?
The common English name « grunt » comes from the sound the fish makes, which resembles the grunting of a pig. This sound is produced by the fish's well-developed teeth located in its throat.
Grunts are related to snappers but are generally smaller and have more deeply forked tails.
The smallmouth grunt is listed as many other marine species within The IUCN Red List of threatened species. The smallmouth grunt appears in the IUCN Red List since 2015 within the category Least Concern !
Tips for observing
Schools of grunts rarely consist of just one species. It’s common to see a mix of species, including the blue striped grunt, the white grunt, the french grunt and the smallmouth grunt, making it tricky to identify the odd one out unless you carefully examine the stripe patterns and colors.
Most often, schools of smallmouth grunts position themselves near the bottom, sheltered by the large branches of elk horn coral
Most often, schools of smallmouth grunts position themselves near the bottom, sheltered by the large branches of elk horn coral
Within the same genus
White grunt (Haemulon plumierii)
White grunt
(Haemulon plumierii)
Blue striped grunt (Haemulon sciurus)
Blue striped grunt
(Haemulon sciurus)
French grunt (Haemulon flavolineatum)
French grunt
(Haemulon flavolineatum)
Cottonwick grunt (Haemulon melanurum)
Cottonwick grunt
(Haemulon melanurum)
Within the same family
Oriental sweetlips (Plectorhinchus vittatus)
Oriental sweetlips
(Plectorhinchus vittatus)
Blackspotted rubberlips (Plectorhinchus gaterinus)
Blackspotted rubberlips
(Plectorhinchus gaterinus)
Diagonal-banded Sweetlip (Plectorhinchus lineatus)
Diagonal-banded Sweetlip
(Plectorhinchus lineatus)
Ribboned sweetlips (Plectorhinchus polytaenia)
Ribboned sweetlips
(Plectorhinchus polytaenia)
Harlequin sweetlips (Plectorhinchus chaetodonoides)
Harlequin sweetlips
(Plectorhinchus chaetodonoides)
Painted sweetlips (Diagramma pictum)
Painted sweetlips
(Diagramma pictum)
Porkfish (Anisotremus virginicus)
Porkfish
(Anisotremus virginicus)
Black margate (Anisotremus surinamensis)
Black margate
(Anisotremus surinamensis)
Explore also
Pontoh's pygmy seahorse (Hippocampus pontohi)
Pontoh's pygmy seahorse
(Hippocampus pontohi)
Blackspot razorfish (Iniistius dea)
Blackspot razorfish
(Iniistius dea)
Knife razorfish (Cymolutes praetextatus)
Knife razorfish
(Cymolutes praetextatus)
Six line wrasse (Pseudocheilinus hexataenia)
Six line wrasse
(Pseudocheilinus hexataenia)
Bicolor angelfish (Centropyge bicolor)
Bicolor angelfish
(Centropyge bicolor)
Copperbanded butterfly (Chelmon rostratus)
Copperbanded butterfly
(Chelmon rostratus)
Yellowstripe wormfish (Gunnellichthys viridescens)
Yellowstripe wormfish
(Gunnellichthys viridescens)
White seabream (Diplodus sargus)
White seabream
(Diplodus sargus)
The marine species from Florida
Bandtail puffer (Sphoeroides spengleri)
Bandtail puffer
(Sphoeroides spengleri)
Elkhorn coral (Acropora palmata)
Elkhorn coral
(Acropora palmata)
Gray angelfish (Pomacanthus arcuatus)
Gray angelfish
(Pomacanthus arcuatus)
Gray snapper (Lutjanus griseus)
Gray snapper
(Lutjanus griseus)
Leatherback sea turtle (Dermochelys coriacea)
Leatherback sea turtle
(Dermochelys coriacea)
Long-spined sea urchin (Diadema antillarum)
Long-spined sea urchin
(Diadema antillarum)
Spanish hogfish (Bodianus rufus)
Spanish hogfish
(Bodianus rufus)
Stoplight parrotfish (Sparisoma viride)
Stoplight parrotfish
(Sparisoma viride)
Les destinations de plongée
Guadeloupe island
Guadeloupe island
La Guadeloupe
La Guadeloupe
Where to go scuba diving in Guadeloupe ?
Where to go scuba diving in Guadeloupe ?
Dive centers
Centre de plongée des Ilets
'Les Ilets' dive center
Noa Plongée
Noa dive center
Sea Dwellers Dive Center
Sea Dwellers Dive Center
Vous abonnez !

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