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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

Giant: 4 m and more

The whale shark, basking shark, oarfish and giant manta. 52 fish.

Tiny Small Medium Large Very large Giant

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

🇧🇷 Brazil and 1 moreArapaima Large freshwater fish from the Amazon basin known for its size and air-breathing ability.Ancient · Rivers and lakes

🇦🇺 Australia and 4 moreLargetooth sawfish A critically endangered ray with a toothed rostrum that enters rivers.Ray · Rivers and lakes

🇺🇸 United States and 4 moreSmalltooth sawfish Critically endangered Atlantic sawfish with a toothed rostrum.Ray · Coasts and shelves

🇦🇺 Australia and 4 moreLongcomb sawfish A critically endangered sawfish with a toothed rostrum.Ray · Coasts and shelves

WorldCatfish A diverse order of ray-finned fish known for whisker-like barbels and lack of scales.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.

Atlantic sturgeon: Jiaqian AirplaneFan, CC BY 3.0, source
Arapaima: This illustration was made by Citron You must credit this : Citron / C, CC BY-SA 3.0, source
Sawfish: Diliff, CC BY 2.5, source
Smalltooth sawfish: D Ross Robertson, Public domain, source
Longcomb sawfish: Flavio Ferrari, CC BY-SA 2.0, source
Catfish: Basenji1908, 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.