Cassava croaker (Pseudotolithus senegalensis)

Photo by Karim Haddad on iNaturalist · CC BY 4.0

Fish·Active (October)

Cassava croaker

Pseudotolithus senegalensis

When
Active all year; habitat and behaviour shift with the season.
Habitat
Mud, sand and broken ground from the beach out to about 70 m along the coast from Senegal to Angola — off surf beaches near river mouths, and on the inshore grounds fished from canoes and boats. Smaller fish come into shallow water, but it seldom enters lagoons or estuaries.
Identification
A long, silvery-grey croaker with a big, oblique mouth, a slightly jutting lower jaw and a pair of large canine teeth at the front of the upper jaw. Rows of small dark spots follow the scale rows, the spiny dorsal fin has a black tip, the tail is pointed and the inside of the gill cover is black.
Notes
West Africa’s most valuable bottom fish and a staple of every coastal market. It hunts small fish, prawns and crabs over soft ground and spawns from November to March in the Gulf of Guinea. Heavy trawl and canoe fishing have made it Endangered.
Method
Cut fish, squid or a whole prawn on a running ledger, fished on the bottom from the beach or from a boat over mud; a jig or soft plastic bounced slowly along the bottom.
Caution
Listed as Endangered by the IUCN: keep only what you need and return fish under about 35 cm, the size at which they mature. West African rules vary — ask locally.

Seasons, size limits and catch limits change every year and differ by water body. Check the current regulations for the country and the water before fishing.

Cassava croaker facts

Also called
Cassava drum, croaker or simply cassava in English-speaking West Africa; bar and otolithe sénégalais in French; corvina and rainha in Portuguese.
Family
Sciaenidae, the drums and croakers.
Native range
The West African coast from Morocco to Angola, but rare north of Senegal; also reported from Namibia.
Habitat
Coastal water over mud, sand and rock from the shore to about 70 m (230 ft). Smaller fish live in shallow water, but rarely enter estuaries.
Water temperature
Tropical. AquaMaps puts its preferred surface water at about 24–28°C (76–82°F); it is seldom found in water cooler than 16°C (61°F).
Size
Most adults 35–60 cm (14–24 in); the largest measured about 114 cm (45 in).
Record
IGFA all-tackle world record: 14.2 kg (31 lb 4 oz), Michel Delaunay, Bubaque Island, Guinea-Bissau, 4 August 2009.
Lifespan
At least 8 years — the oldest recorded, from the mouth of the Congo River (FishBase).
What it eats
Small fish — FishBase records the fry of the long-finned herring — with prawns, shrimps and crabs.
Spawning
November to March in the Gulf of Guinea, in water of 22–25°C (72–77°F). Fish mature at about 35 cm.
Young fish
Small fish live in shallow coastal water.
Teeth and mouth
Large and oblique, with a slightly jutting lower jaw, bands of fine teeth and a pair of large canines at the front of the upper jaw. The inside of the gill cover is black.
Look-alikes
Longneck croaker (Pseudotolithus typus) grows larger, has an even smaller eye and an upper jaw that reaches past the eye, and its young enter estuaries and rivers. Bobo croaker (Pseudotolithus elongatus) is smaller, with a larger eye and a very strong second anal spine, and lives close inshore and in lagoons.
Eating
Excellent, with white, flaky flesh; West Africa’s most important bottom fish for food and a mainstay of coastal markets.
Status
Endangered on the IUCN Red List (2020), for a decline inferred from catch rates and the weight of fishing along the coast.

Interactive

Cassava croaker: size range

Move the slider from a typical adult to the largest recorded specimen, shown against objects of known size.

48 cm · 19 inmost adults20406080100120140cm61218243036424854ina loaf of bread · 30 cma 4-year-old, lying down · 100 cma canoe paddle · 150 cm

Most adults you'll catch: 35–60 cm (14–24 in).

This cassava croaker: 48 cm. Longer than a loaf of bread, shorter than a four-year-old.

The record

IGFA all-tackle world record: 14.2 kg (31 lb 4 oz), Michel Delaunay, Bubaque Island, Guinea-Bissau, 4 August 2009.

Questions people ask about cassava croaker

Why is it called a croaker?

Croakers and drums make a loud drumming or croaking sound by vibrating muscles against the swim bladder, and you can often hear it when one is landed.

Is the cassava croaker endangered?

Yes. The IUCN listed it as Endangered in 2020 because heavy trawl and canoe fishing along the West African coast have sharply reduced it. Keep only what you need and return fish under about 35 cm, the size at which they mature.

How big do cassava croakers get?

Most are 35–60 cm (14–24 in), and the species reaches 114 cm (45 in). The IGFA world record is 14.2 kg (31 lb 4 oz), from Bubaque Island in Guinea-Bissau’s Bijagós archipelago, in 2009.

Found in these regions

Checked against these sources ·

Sizes, records and ranges are for the species as a whole; local populations and rules vary. Records change; the record-keeper named above holds the current one.

Local activity

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Also active in October