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SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It Again OceanEye to eye with Britain's hidden sharks at SharkAdemy - Oceanographic RiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at all OceanShedd Aquarium Sends Shark Eggs to Bolster Wild Populations SpeciesA 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 Conservation OceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray Area SpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow Reductions FisheriesAdams River Salmon Run in Thompson-Nicola IndiaHilsa production dropped 26% in five years, fisheries minister tells parliament SpeciesScientists Discover Mysterious New Fish in the Red Sea – and Have Never Seen It Again OceanEye to eye with Britain's hidden sharks at SharkAdemy - Oceanographic RiversIn October, biologists surveying a New York harbor for invasive fish pulled up a bright yellow one. It wasn't an invasive species at all OceanShedd Aquarium Sends Shark Eggs to Bolster Wild Populations SpeciesA 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 Conservation OceanEckerd College professor contributes to designating Biscayne Bay an Important Shark and Ray Area SpeciesRio Verde Grande Survey Identifies Fifty-Three Fish Species Facing Flow Reductions FisheriesAdams River Salmon Run in Thompson-Nicola IndiaHilsa production dropped 26% in five years, fisheries minister tells parliament

EveryFish

Medium: 20 to 60 cm

Hilsa, mackerel, trout, tilapia and most food fish. 121 fish.

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WorldHypostomus plecostomus A tropical armored catfish from South America, kept in aquariums for algae control.Catfish · Rivers and lakes · 1758

🇧🇷 Brazil and 4 moreAmazon sailfin catfish A large freshwater armored catfish from South America, often kept in aquariums and known as an invasive pest elsewhere.Catfish · Rivers and lakes

🇺🇸 United StatesBrown bullhead A hardy North American catfish known for surviving poor water conditions.Catfish · Rivers and lakes · 1819

Sub-Saharan AfricaCuckoo catfish A brood-parasitic catfish from Lake TanganyikaCatfish · Rivers and lakes

Latin America and the CaribbeanBanjo catfish A South American family of scaleless, benthic catfish with a distinctive banjo-shaped body.Catfish · Rivers and lakes Sub-Saharan AfricaSilver butter catfish Widespread African catfish with a silvery body and shovel mouthCatfish · Rivers and lakes

🇧🇷 Brazil and 4 moreCandiru A tiny parasitic catfish from the Amazon that feeds on blood.Catfish · Rivers and lakes

Photo credits on this page

The small pictures above come from Wikimedia Commons under free licences. Some are cropped to fit.

Hypostomus plecostomus: Raphaël Covain, Natural History Museum of Geneva, CC BY-SA 4.0, source
Amazon sailfin catfish: Richwales at en.wikipedia, Public domain, source
Brown bullhead: Unknown author, CC BY-SA 2.5, source
Cuckoo catfish: Mario Rubio García, CC BY 2.0, source
Banjo catfish: 5snake5, CC0, source
Candiru: Ivan Sazima & Jansen Zuanon, CC BY 4.0, source

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