Bighead Carp
Hypophthalmichthys nobilis
The bighead carp (Hypophthalmichthys nobilis) is a large East Asian carp with a deep body, low-set eyes, and an oversized head adapted for filtering plankton. It has been farmed for food for centuries and is often raised with other carp species in pond systems. Bighead carp feed by straining zooplankton and other suspended organisms from the water, which can make them efficient producers in aquaculture but disruptive where they become established outside their native range.
Human management depends heavily on location. In approved aquaculture, bighead carp need productive ponds, careful stocking density, harvest planning, and biosecurity that prevents escapes during floods or water transfers. In North America and other introduced areas, they are treated as invasive fish because they can compete with native filter feeders and alter aquatic food webs. Regulations may restrict possession, transport, or live sale. They are not practical aquarium fish; adults grow too large and are managed as food fish, research subjects, or control targets in rivers and reservoirs.
