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The largest recorded weight for a gafftopsail catfish is 4.54 kg (10.0 lb) [7] and 69 cm (27 in) in length. [8] A more common weight and length of gafftopsails caught is 1–2 lb (450–910 g) and 12–16 in (30–41 cm). As gafftopsail catfish grow longer, they increase in weight, but the relationship is not linear.
The giant Lake Biwa catfish is very similar to wels catfish, which it is closely related to. It has an elongated cylindrical body and can reach up to 1.18 m (3 ft 10 in) in length and weigh as much as 17 kg (37 lb). [1] The top of the body is dark grey to black in colour while the underside is a pale, whitish colour.
The maximum length is 160 cm (5.2 ft) in the blue catfish and the flathead catfish. [5] The bullheads, though, are small catfish which at maturity often weigh less than 0.5 kg (1 lb), while the madtoms (genus Noturus ) are in general much smaller.
The wels catfish, Silurus glanis, and the much smaller related Aristotle's catfish, are the only catfish indigenous to Europe; the former ranges throughout Europe, and the latter is restricted to Greece. Mythology and literature record wels catfish of astounding proportions yet are to be proven scientifically. The typical size of the species is ...
The wels catfish (/ ˈ w ɛ l s / or / ˈ v ɛ l s /; Silurus glanis), also called sheatfish or just wels, [2] is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black and Caspian Seas.
The gulper catfish grows to a standard length of 25 cm (9.8 in), [2] and a total length of 28.5 cm (11.2 in). [7] It has a short, thick-set shape and is dark-colored with a whitish belly. [ 7 ] People in its native range typically will not eat it because they consider it very ugly, [ 8 ] but it is sometimes kept in aquariums.
Brachyplatystoma filamentosum, commonly called piraíba, kumakuma, valentón or lau lau, is a species of catfish of the family Pimelodidae and genus Brachyplatystoma that is native to Amazon and Orinoco River basins and rivers in the Guianas and northeastern Brazil.
The redtail catfish (Phractocephalus hemioliopterus), is a large species of South American pimelodid (long-whiskered) catfish. It is known in Venezuelan Spanish as cajaro ; in Guyana , it is known as a banana catfish , and in Brazil it is known as pirarara , [ 3 ] a fusion of words from the indigenous Tupi language : pirá and arara . [ 4 ]