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American shad (Alosa sapidissima) — Clupeidae

American shad

Alosa sapidissima
Family: Clupeidae
LC · Least Concern
NativeIntroduced

The American shad (Alosa sapidissima) is a fish that lives in both fresh and salt water of the family Clupeidae that grows up to 76 cm.

Length
76 cm
Water
Euryhaline
Depth
0.0–250.0 m
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Range
Atlantic coast of North America; spawns in rivers, lives at sea.
Edibility
Commonly eaten

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Description

The American shad is an anadromous herring relative of the Atlantic coast of North America. The species grows to about 76 cm and has a streamlined, laterally compressed and silvery body with a dark shoulder spot. Adults live in schools in open sea over the continental shelf and ascend rivers to spawn. With fine gill rakers it filters zooplankton from the water. The species is fished commercially and is a valued food and roe fish. It is harmless to humans.

Frequently asked questions

How do you recognise the American shad?

The American shad has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern. Dark shoulder blotch; filters plankton with fine gill rakers.

Where does the American shad live?

The American shad lives in both fresh and salt water and is mostly found around open water. Atlantic coast of North America; spawns in rivers, lives at sea.

How big does the American shad get?

The American shad grows to a maximum of about 76 cm. On average the species is around 50 cm.

Is the American shad dangerous to humans?

No, the American shad is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the American shad edible?

Yes, the American shad is commonly eaten.

More photos

American shad (Alosa sapidissima) — Clupeidae — 2
GBIF (Jacob Jones)
American shad (Alosa sapidissima) — Clupeidae — 3
iNaturalist ((c) keelercolton, some rights reserved (CC BY-NC))
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All data

Identification

English name
American shad verified
Scientific name
Alosa sapidissima
Family
Clupeidae
Other names
American shad; Atlantic shad; Common shad; Shad; White shad; Connecticut River shad; Herring jack; North River shad; Potomac shad; Susquehanna shad verified

Appearance

Size class
Large verified
Max length (cm)
76.0 verified
Average length (cm)
50.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Spots inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Euryhaline sourced
Substrate
Open water sourced
Min depth (m)
0.0 verified
Max depth (m)
250.0 verified
Natural range
Atlantic coast of North America; spawns in rivers, lives at sea. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Zooplankton sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
levensduur_max_jaar
13.0 verified
Seasonality
Migrates up the rivers in spring to spawn. inferred
Special features
Dark shoulder blotch; filters plankton with fine gill rakers. sourced

For anglers

Edibility
Commonly eaten sourced
Fishing method
Angling with lures or (dead/live) baitfish by trolling, casting or drift fishing in open water. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Alosa

More from the family Clupeidae

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