How to Identify Redeye Bass

To identify Redeye Bass (Micropterus coosae), look at these key features.

Physical Characteristics

Body shape

elongated

Coloration

Olive green to brown on the back, fading to lighter flanks and a white belly. Distinctive dark, vertical bars or blotches are often present on the sides, particularly in younger fish. The most prominent feature is the bright red or orange coloration in the iris of the eye, which intensifies with age and during spawning. The dorsal, caudal, and anal fins often have reddish-brown margins.

Scale type

ctenoid

Mouth position

terminal

Distinctive features

Bright red or orange iris (redeye), Small mouth, with the upper jaw not extending beyond the posterior margin of the eye, Scales present on the cheek and operculum, Often exhibits dark vertical bars or blotches on the sides, Pectoral fins are typically clear to slightly dusky, without distinct spots

Dorsal fin

Spinous and soft-rayed portions are broadly joined, appearing as a single fin. Typically 9-11 dorsal spines and 11-14 soft rays.

Tail fin

Slightly emarginate to nearly truncate.

Pectoral fin

Rounded, with 13-15 rays.

Distinctive fins

Anal fin has 3 spines and 9-11 soft rays. Pelvic fins are thoracic.

Identification Tips

1. 1

   Eye Color

   Look for the prominent red or orange iris, which is the most distinguishing feature and gives the fish its common name.

2. 2

   Mouth Size

   The mouth is relatively small; the upper jaw typically does not extend past the posterior margin of the eye. This differentiates it from Largemouth Bass.

3. 3

   Body Pattern

   Observe for dark vertical bars or blotches on the sides, which can be quite pronounced, especially in younger individuals.

4. 4

   Pectoral Fins

   Check the pectoral fins; they are usually clear to slightly dusky and lack distinct spots, unlike some other bass species.

5. 5

   Habitat

   Consider the habitat: Redeye Bass are typically found in clear, cool, rocky streams and rivers, not in large, warm impoundments.

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