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Through these pheromones, a catfish can identify not only the species and sex of a conspecific, but also its age, size, reproductive state, or hierarchical social status. [21] Territoriality in channel catfish is identifiable by a change in body odor, which is recognizable by other members of the same species. [21]
Catfish (or catfishes; order Siluriformes / s ɪ ˈ lj ʊər ɪ f ɔːr m iː z / or Nematognathi) are a diverse group of ray-finned fish.Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to ...
Ictalurus furcatus (Valenciennes, 1840) (blue catfish) Ictalurus lupus (Girard, 1858) (headwater catfish) Ictalurus meridionalis (Günther, 1864) Ictalurus mexicanus (Meek, 1904) (Rio Verde catfish) Ictalurus ochoterenai (F. de Buen, 1946) (Chapala catfish) Ictalurus pricei (Rutter, 1896) (Yaqui catfish) Ictalurus punctatus (Rafinesque, 1818 ...
One of the largest species is the blue catfish, Ictalurus furcatus, specimens of which have been found to weigh over 50 kg (110 lb). The maximum length is 160 cm (5.2 ft) in the blue catfish and the flathead catfish. [5]
The blue catfish (Ictalurus furcatus) is a large species of North American catfish, reaching a length of 65 in (170 cm) and a weight of 143 lb (65 kg). [4] The continent 's largest catfish, it can live to 20 years, with a typical fish being between 25–46 in (64–117 cm) and 30–70 lb (14–32 kg).
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Amur catfish Japanese common catfish Silurus asotus: Cultivated 413,350 European sprat Sprattus sprattus: Wild 408,509 Pink salmon Oncorhynchus gorbuscha: Wild 406,131 Mrigal carp Cirrhinus mrigala: Cultivated 396,476 Channel catfish Ictalurus punctatus: Cultivated 394,179 See also: Aquaculture of catfish: Blood cockle Anadara granosa ...
The size of the clutch varies proportionately to the size of the female; an average of 2,640 eggs per kilogram of fish are laid. On average each female flathead lays a clutch of roughly 100,000 eggs. The role of the male catfish in fanning the clutch is to provide oxygen to the eggs through the use of his fins.