Skipjack shad

The skipjack shad (Alosa chrysochloris), also known as the skipjack herring, is a species of ray-finned fish in the family Clupeidae. It is native to the United States, where it inhabits large rivers and reservoirs.

Description

Skipjack shad illustration

The skipjack shad is a slender, streamlined fish with a deeply forked tail. It typically measures between 30 and 50 cm in length. The body is silvery with a bluish or greenish back, and it has a distinctive dark spot near the gill cover. The scales are large and easily shed.

Distribution and Habitat

The skipjack shad is found in the Mississippi River basin, including the Ohio River, Missouri River, and Arkansas River. It prefers large, open waters and is often found in fast-flowing sections of rivers. The species is also present in some reservoirs where it has been introduced.

Behavior

Skipjack shad are known for their schooling behavior and are often seen in large groups. They are highly migratory, moving upstream to spawn in the spring. The species is a filter feeder, primarily consuming zooplankton, but it will also eat small fish and insects.

Reproduction

Spawning occurs in the spring when water temperatures rise. The skipjack shad migrates upstream to spawn in shallow waters. Females release eggs into the water column, which are then fertilized by males. The eggs are pelagic and drift with the current until they hatch.

Importance to Humans

The skipjack shad is not a major target for commercial fisheries, but it is sometimes caught by anglers. It is considered a good baitfish for larger predatory species such as bass and catfish.

Conservation Status

Currently, the skipjack shad is not considered to be at risk. However, habitat degradation and changes in river flow due to damming and water management practices could impact populations in the future.

Related pages

• Clupeidae
• Alosa
• Mississippi River