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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

All fish

444 fish so far, best known first. 745 more are on the list to be written.

#A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

🇺🇸 United States and 1 moreAtlantic sturgeon A large anadromous fish native to the western Atlantic Ocean and its river systems.Ancient · Rivers and lakes

🇺🇸 United States and 1 moreShortnose sturgeon A small, endangered North American sturgeon with a short snout.Ancient · Rivers and lakes · 1818

🇲🇽 Mexico and 2 moreTropical gar A small freshwater predator from Central America known for its armored scales and air-breathing ability.Ancient · Rivers and lakes

🇺🇸 United StatesDelta smelt A tiny, endangered fish native to California's Sacramento-San Joaquin River Delta.Other · Rivers and lakes · 1963

🇺🇸 United States and 2 moreAmerican gizzard shad A silvery freshwater forage fish with a muscular gizzard.Herring · Rivers and lakes

🇨🇺 CubaCuban gar Large tropical freshwater predator native to western Cuba.Other · Rivers and lakes

🇺🇸 United States and 2 morePupfish Small killifish known for surviving in extreme isolated waters.Livebearer · Rivers and lakes

WorldThree-spined stickleback Small northern fish known for rapid evolution and complex breeding.Other · Rivers and lakes

🇷🇺 Russia and 1 moreRuffe A small, aggressive freshwater fish native to Eurasia that has become a major invasive pest in North America.Perch-like · Rivers and lakes · 1758

🇲🇽 Mexico and 3 moreXiphophorus A genus of small livebearing fish native to Mexico and Central America, known for aquarium use and genetic research.Livebearer · Rivers and lakes

WorldKillifish Small egg-laying fish known for hardiness and short lifespansLivebearer · Rivers and lakes

🇺🇸 United StatesLeast killifish A tiny North American fish that gives birth to live young and measures just two centimetres long.Livebearer · Rivers and lakes

🇺🇸 United States and 4 moreMosquitofish Small North American fish introduced globally for mosquito control.Livebearer · Rivers and lakes

🇯🇵 JapanJapanese rice fish Small freshwater fish native to Japan and a key model organism.Other · Rivers and lakes

🇧🇷 Brazil and 1 moreLargescale four-eyes Surface-dwelling fish with split eyes for dual vision.Livebearer · Rivers and lakes · 1758

🇸🇳 Senegal and 3 moreSenegal bichir Ancient African fish that breathes air and walks on landAncient · Rivers and lakes

South AsiaGreen spotted puffer Small brackish water pufferfish with a tiny genomeOther · Rivers and lakes

WorldDamselfish Small marine fish known for aggressive territorial behaviour and reef farming.Reef fish · Coasts and shelves

🇲🇽 Mexico and 1 moreGreen swordtail A hardy live-bearing fish popular in home aquariums.Livebearer · Rivers and lakes · 1848

WorldBluefin trevally Large tropical marine predator with electric blue finsPerch-like · Coasts and shelves · 1833

Photo credits on this page

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

Atlantic sturgeon: Jiaqian AirplaneFan, CC BY 3.0, source
Shortnose sturgeon: Unknown author, Public domain, source
Tropical gar: AlejandroLinaresGarcia, CC BY-SA 3.0, source
Bichir: 5snake5, CC0, source
Delta smelt: Peterson, B. Moose / U.S. Fish and Wildlife Service, Public domain, source
American gizzard shad: Unknown author, Public domain, source
Cuban gar: Poleta33, CC BY-SA 3.0, source
Pupfish: P.V. Loiselle, CC BY-SA 3.0, source
Three-spined stickleback: Gilles San Martin, CC BY-SA 2.0, source
Ruffe: Tiit Hunt, CC BY-SA 3.0, source
Xiphophorus: Marrabbio2, CC BY-SA 3.0, source
Killifish: TinoStrauss, CC BY-SA 3.0, source
Least killifish: Brian Gratwicke, CC BY 2.0, source
Mosquitofish: NOZO, CC BY-SA 3.0, source
Japanese rice fish: NOZO, CC BY 3.0, source
Largescale four-eyes: Michael Gäbler, CC BY 3.0, source
Green spotted puffer: Starseed, CC BY-SA 3.0 de, source
Damselfish: Nick Hobgood, CC BY-SA 3.0, source
Green swordtail: Bastet78, CC BY-SA 3.0, source
Bluefin trevally: Diego Delso, CC BY-SA 4.0, source

The weekly digest

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