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Pangasius pangasius, the Pangas catfish, is a species of shark catfish native to fresh and brackish waters of Bangladesh, India, Myanmar, and Pakistan. [1] [2] It has also been introduced to Cambodia and Vietnam. This species grows to a standard length of 3 metres (9.8 ft).
The Bagridae are a family of catfish that are native to Africa and Asia (all other genera) from Japan to Borneo. [3] It includes about 245 species. These fish are commonly known as naked catfishes or bagrid catfishes. Many large bagrids are important as a source of food. Some species are also kept as aquarium fishes. [3]
In 1993, Pangasius was one of two extant genera (along with Helicophagus) in the family Pangasiidae.At this point, it was split into four subgenera. Pangasius (Pangasianodon) included P. gigas and P. hypophthalmus and was diagnosed by the absence of mandibular barbels, the absence of teeth in adults and the presence of a single-lobed swimbladder.
Pterygoplichthys anisitsi [1] [2] also known as the Paraná sailfin catfish, southern sailfin catfish, is a species of catfish in the family Loricariidae. [3] Its natural range is the middle Paraná and Uruguay River basins of south-central South America, [4] but it has been introduced to North America and South Asia, probably via the pet trade.
Pterygoplichthys has undergone much shifting in the past decades. Previously Liposarcus, Glyptoperichthys and Pterygoplichthys had been named as separate genera. [2] [3] Since then, these genera were recognized as synonyms of Pterygoplichthys by Armbruster, as the few differences between the genera were not deemed great enough to validate Glyptoperichthys and Liposarcus, and that recognizing ...
Globally, fish and fish products provide an average of only about 34 calories per capita per day. However, more than as an energy source, the dietary contribution of fish is significant in terms of high-quality, easily digested animal proteins and especially in fighting micronutrient deficiencies. [ 2 ]
Invariably, b is close to 3.0 for all species, and c is a constant that varies among species. The relationship described in this section suggests that a 20 in (51 cm) hardhead catfish will weigh about 3 lb (1.4 kg), while a 25 in (64 cm) hardhead catfish will likely weigh at least 6 lb (2.7 kg).
The diet of a small sauger (200–299 mm) is slightly different from a larger sauger's. Smaller saugers generally feed on benthic invertebrates, mayfly larvae, and catfish during spring and summer. Midsized and large saugers feed mainly on fish from spring to autumn, but their diets alter during summer.