Fish and fishingof Côte d’Ivoire and the Gulf of Guinea FREN
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Species sheet 42

Grogneur sompat (Sompat grunt)

Pomadasys jubelini (Cuvier, 1830)

Family Haemulidae • the coastal grunt of brackish waters

Identification plate: Grogneur sompat (Sompat grunt)
Plate validated 2026

4 look-alikes to know

Don’t mix it up: Grogneur sompat (Sompat grunt)

How to tell them apart: With other grunts (Pomadasys rogerii, Pomadasys incisus): colouring, size and the number of dorsal spines help decide.

How to tell them apart: With the rubberlip grunt (Plectorhinchus mediterraneus), larger and deeper-bodied.

How to tell them apart: With croakers (Pseudotolithus): these have a larger, oblique mouth.

How to tell them apart: With the sompat grunt (Pomadasys jubelini) and the pigsnout grunt (Pomadasys rogerii), both larger. The small size and the yellow dorsal tinge help recognise the bastard grunt. Examine ray counts in doubtful cases.

Clue noted on sheet 44, Grogneur métis (Bastard grunt).

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ID card
French nameDorade grise. Other names: carpe-blanche, grogneur sompat, sompat.
Scientific namePomadasys jubelini (Cuvier, 1830)
FamilyFamily Haemulidae
English name (FAO)Grogneur sompat (Sompat grunt)
Local namesOn Ivorian markets and landing sites: “Carpe-blanche” (Ouattara et al., 2016).
HabitatMarine, brackish and freshwater, demersal. Depth 0 to 100 m, most often 20 to 50 m.
IUCN statusLC Least Concern. Precise status to be confirmed.

Identification

A grunt with an oval, compressed body, silvery grey with golden reflections, darker back. Even head profile, modest mouth with two pores and a pit on the chin, the mark of the Haemulidae. It produces grunting sounds with its swim bladder. Pelvic and anal fins sometimes washed with yellow.

Features that never mislead

Two pores and a central pit under the chin, the mark of the grunts.

Oval compressed body, silvery grey with golden reflections.

Produces grunting sounds with the swim bladder.

Modest mouth, even head profile.

Size and weight

Common size around 45 cm. Published maximum length about 60 cm total length (FishBase). Early maturity, at around 13 cm.

Behaviour and ecology

A euryhaline species very much at home in brackish waters: it frequents the shoreline and estuaries and even enters fresh water. It searches soft bottoms for worms, molluscs and small crustaceans.

Present along the entire West African coast from Mauritania to Angola. In Côte d'Ivoire, it is a familiar species of the Ébrié lagoon and the Vridi canal. IUCN status: Least Concern.

Reproduction and season

Coastal and estuarine spawning, pelagic eggs and larvae. Early maturity. Young fish use the lagoons as nursery areas.

Fishing practice

Techniques, from most to least effective

Bottom fishing with natural bait (worm, shrimp) on lagoon and estuary bottoms.

Surfcasting from the beaches and the canal mouth.

Caught in coastal and lagoon nets.

The fight: honest and sustained, with steady pulls along the bottom. A good fish for static bottom fishing in the lagoon as well as for surfcasting.

Eating quality

White, fine and appreciated flesh. Excellent braised or grilled. Very common on Ivorian markets, a popular lagoon fish.

Sources: FishBase (Pomadasys jubelini, Cuvier 1830); FAO Eastern Central Atlantic; Ouattara et al. 2016; coastal IUCN status to be reconfirmed.

Recommended rig · Grogneur sompat (Sompat grunt)
Numbered diagram: Lagoon bottom fishing: running (sliding) rig
Lagoon bottom fishing: running (sliding) rig
  1. Rod 2.40 to 3.00 m
  2. Reel 4000 to 6000
  3. Main line: braid PE 1.5 to PE 3 or nylon 30/100
  4. Sliding sinker suited to the current
  5. Stop bead
  6. Swivel
  7. Leader: fluorocarbon 30 to 40/100
  8. Hook 1/0 to 3/0; bait: marine worm, shrimp, piece of fish
Numbered diagram: Lagoon bottom fishing: paternoster
Lagoon bottom fishing: paternoster
  1. Rod 2.40 to 3.00 m
  2. Reel 4000 to 6000
  3. Main line: braid PE 1.5 to PE 3 or nylon 30/100
  4. Snap swivel
  5. Leader: fluorocarbon 30 to 40/100
  6. Dropper and hook 1/0 to 3/0; bait: marine worm, shrimp, piece of fish
  7. Sinker suited to the current

The numbers on the drawing refer to the list. The values (diameters, sizes, weights) are those given in the species sheet.