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SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliamentSpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It AgainOceanEye to eye with Britain's hidden sharks at SharkAdemy - OceanographicRiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at allOceanShedd Aquarium Sends Shark Eggs to Bolster Wild PopulationsSpeciesA rare fish has been found in Lake Ontario, North America, whose entire body is golden. It is a nati..OceanThe Great Sea Reef Is Fiji’s Wildest Dive, and a New Frontier for ConservationOceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray AreaSpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow ReductionsFisheriesAdams River Salmon Run in Thompson-NicolaIndiaHilsa production dropped 26% in five years, fisheries minister tells parliament
EveryFish

Catfishes

Singhi, magur, pangas, wels and the Mekong giant catfish. 3 fish on EveryFish so far.

Catfishes, the order Siluriformes, are named for the whisker-like barbels around their mouths. There are more than 3,000 species, roughly one in ten of all fish, living on every continent except Antarctica, mostly in fresh water. Most have no scales; some are armoured in bony plates. Many have sharp, locking spines on their pectoral and dorsal fins, and some of those spines carry venom.

Giants and air-breathers

The Mekong giant catfish and the wels catfish of Europe are among the largest freshwater fish, and the goonch of Himalayan rivers can grow well over a metre. At the other end, many small catfish are kept in aquariums, and the candiru of the Amazon is a thin parasite of other fish. In South Asia, magur and singhi breathe air through organs above the gills and live in swamps, paddies and ponds where oxygen runs low. Bengali tradition holds them to be light food for the sick.

Farmed and eaten

The iridescent shark catfish, pangasius, is farmed in vast numbers in Vietnam's Mekong delta and in Andhra Pradesh, and sold worldwide as cheap white fillets. The channel catfish is the main farmed fish of the southern United States. The African catfish has been farmed widely but is invasive, and its farming is banned in India. Pabda, boal, tengra and pangas are popular catfish in Bengali kitchens.

Still to be written: Mekong giant catfish, Wels catfish, Iridescent shark, Channel catfish, Clarias magur, Heteropneustes fossilis, Bagarius yarrelli, Ompok pabda.

Further reading

The weekly digest

Every Monday: the fish of the day, new pages on EveryFish, and the conferences and anniversaries of the week ahead.