
The Chain Pickerel's back and sides are olive green to brown, grading to white on the belly. Its sides are overlain with yellowish green blotches, which cause the darker green background color to form chainlike markings on the sides. Caught this one in a stream by Amherst College (Fort River)

The chain pickerel is distinguishable from the grass or red-fin pickerel by a longer snout and the chainlike markings. If you look in the underside of the enlarged gill cover (that also characterizes the chain pickerel) you will find what are known as Branchiostegal rays. Branchiostegal rays are slender bones supporting the membranous edge of the gill cover. The chain pickerel has more branchiostegal rays (14-17) than others (10-13)

This younger pickerel has a series of incomplete chain markings that will segment with age.
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