How to Identify Yellowfin Croaker

To identify Yellowfin Croaker (Umbrina roncador), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Silvery-gray to brassy on the back, fading to white on the belly. The most distinguishing feature is the bright yellow to orange coloration on the pelvic, anal, and caudal fins, and sometimes the lower part of the pectoral fins. Oblique, wavy dark lines may be present on the upper sides.

Scale type

ctenoid

Mouth position

inferior

Distinctive features

Single, stout, blunt barbel on the chin, with a pore at its tip., Bright yellow to orange pelvic, anal, and caudal fins., High, arched back., Large, prominent scales.

Dorsal fin

Two dorsal fins; the first is spiny with 10-11 spines, and the second is soft-rayed with 1 spine and 25-28 soft rays. The two fins are deeply notched but connected at the base.

Tail fin

Slightly emarginate (forked) to truncate, with bright yellow coloration.

Pectoral fin

Moderately long, with 17-19 rays, often with yellow coloration on the lower portion.

Distinctive fins

Pelvic fins are thoracic, with 1 spine and 5 soft rays, distinctly yellow.

Identification Tips

1. 1

   Chin Barbel

   Look for a single, thick, blunt barbel on the underside of the chin. This is a key distinguishing feature among croakers.

2. 2

   Fin Coloration

   The bright yellow to orange pelvic, anal, and caudal fins are highly characteristic and give the fish its common name.

3. 3

   Body Shape and Color

   Elongated, silvery-gray body with a high back and sometimes faint oblique dark lines on the upper sides.

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