Do you think you have discovered an aquatic invasive species?
Bighead Carp has a large, scaleless head, and a terminal, toothless mouth. Bighead Carp do not have barbels (the whisker-like appendages found near the corners of the mouth). Its eyes lie below the centre line of its body. It is greyish on top and cream on the underside, with grey to black blotches on its back and sides, and has small, curved scales. Similar to Silver Carp, but Bighead Carp tend to have a slightly wider body. Unlike Silver Carp, Bighead gill rakers are not fused together and appear more like combs. Rakers are adapted for general use, for filtration of zooplankton and some phytoplankton; the microscopic animals and plants on which it primarily feeds. Individuals can grow to more than 40 kilograms, lengths of up to 1.5 metres, and live up to 16 years of age. Bighead and Silver carps have been known to hybridize.
For more information, please visit:
- Canadian Science Advisory Secretariat (CSAS) Publications
- Asian Carp - Fact Sheet
- Asian Carp Program – Bighead Carp website
- Biological Synopsis of Bighead Carp (Hypophthalmichthys nobilis) and Silver Carp (H. molitrix)
- Annotated bibliography of Bighead (Hypophthalmichthys nobilis) and Silver (Hypophthalmichthys molitrix) carps from Russian-Language literature
- Date modified: