Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Anguilliformes
- Family
- Acipenseridae
- Genus
- Acipenser
- Species
- brevirostrum
Habitat
Shortnose sturgeons primarily inhabit large rivers and estuaries along the Atlantic coast of North America, from New Brunswick to Florida, favoring deep, slow-moving waters with sandy or rocky substrates. They are mostly freshwater residents but can tolerate brackish environments in estuaries. This species avoids fast currents and prefers areas with stable temperatures and good oxygen levels.
Diet
Shortnose sturgeons are bottom-feeders that primarily consume insects, crustaceans, mollusks, and small fish found on riverbeds. They use their barbels to detect and suck up prey from the sediment, often feeding at night or in low-light conditions. Their feeding behavior helps them exploit benthic resources in murky waters.
Behavior
Shortnose sturgeons are generally solitary and spend most of their time resting on the river bottom, moving slowly and burrowing into the substrate. They exhibit seasonal migrations upstream for spawning in spring, but otherwise remain in specific river reaches. This species is nocturnal, with increased activity at night, and shows little territorial behavior.
Conservation Status
Listed as Vulnerable by IUCN.