Schrank, 1999



Citation


Schrank, S.J. (1999) Bighead carp threatens Missouri river fisheries. Aquatic Nuisance Species Digest, pp. 26-28

Associated characteristics


Species Development state Trait Primary Data Secondary Data
Aristichthys nobilis Spawning conditions Spawning temperature Optimum temperature for spawning is 22-26°C, and must be greater than 18°C 24.0 °C
Aristichthys nobilis Spawning conditions Spawning water type Spawning typically occurs at the confluence of two rivers, behind sanbars, stonebeds, or islands. These areas are characterized by rapid current (>0.8 m/s) and mixing of water Flowing or turbulent water
Aristichthys nobilis Male Male sexual dimorphism Males generally mature one year earlier and at smaller size than females Absent
Aristichthys nobilis Female Age at sexual maturity Reach sexual maturity at ages 3 through 9 depending on the environmental conditions [Both sex] 3.0 years
Aristichthys nobilis Egg Egg Buoyancy They produce eggs that are semi-buoyant and require a curent to float Ambiguous
Aristichthys nobilis Spawning conditions Spawning season In Asia, bighead carp generally spawn between April and June with a peak in late May ['April', 'May', 'June']
Aristichthys nobilis Female Weight at sexual maturity 5-10 kg [Both sex, in Asia and Europe] 7.5 kg
Aristichthys nobilis Female Length at sexual maturity 50-70 [Both sex, in Asia and Europe] 60.0 cm
Aristichthys nobilis Male Length at sexual maturity 50-70 [Both sex, in Asia and Europe] 60.0 cm
Aristichthys nobilis Larvae Larvae behaviour One day after fertilization, larval bighead haTch and enter the ichthyoplankton drift. Seven days after hatching, bighead carp larvae migrate to shore Demersal
Aristichthys nobilis Male Weight at sexual maturity 5-10 kg [Both sex, in Asia and Europe] 7.5 kg
Aristichthys nobilis Female Age at sexual maturity Reach sexual maturity at ages 3 through 9 depending on the environmental conditions [Both sex] 3.0 year
Aristichthys nobilis Spawning conditions Spawning release Bighead carp often have two or three spawning periods per year [Extended spawing period or multiple spawning] Mutliple