How to Identify White Perch

To identify White Perch (Morone americana), look at these key features.

Physical Characteristics

Body shape

compressed

Coloration

Generally silvery-white to pale green or olive on the sides, fading to a white belly. The back is typically darker, ranging from dark olive to grayish-blue. Young fish may exhibit faint, irregular dusky bars on their sides, which usually fade with age. Fins are typically dusky or translucent.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Deeply notched dorsal fin, appearing almost as two separate fins., Absence of stripes on the body (distinguishing feature from Striped Bass and Hybrid Striped Bass)., Relatively large eyes., Small, pointed teeth in bands on the jaws, vomer, and palatines., Opercle (gill cover) ends in a sharp spine.

Dorsal fin

Two dorsal fins, deeply separated. The first dorsal fin has 9-10 spines, and the second dorsal fin has 1 spine and 12-15 soft rays.

Tail fin

Moderately forked caudal fin.

Pectoral fin

Paired pectoral fins are relatively short and rounded.

Distinctive fins

Pelvic fins are thoracic, located directly below or slightly in front of the pectoral fins, with 1 spine and 5 soft rays. Anal fin has 3 spines and 9-12 soft rays.

Identification Tips

1. 1

   Dorsal Fin

   Look for the deeply notched dorsal fin, almost appearing as two separate fins. The first dorsal fin is spiny, and the second is soft-rayed.

2. 2

   Body Coloration

   Observe the silvery-white to pale green/olive body with a white belly. Absence of distinct dark stripes on the sides is a key identifier, differentiating it from striped bass relatives.

3. 3

   Size

   Adult White Perch typically range from 6-12 inches (15-30 cm) in length and weigh 0.5-1.5 pounds (0.2-0.7 kg). Maximum recorded size is around 19 inches (48 cm) and 4 pounds (1.8 kg).

4. 4

   Opercular Spine

   Feel for a sharp spine on the posterior edge of the opercle (gill cover).

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