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Mahi-mahi

life science Maturity 5-7 Next article →

The mahi-mahi is a stunning fish found in warm ocean waters.

Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579
Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579

You can find them in the Gulf of Mexico and Hawaii. They also live in the Indian Ocean and near Costa Rica. People call them by many names like dorado or dolphin. The name mahi-mahi comes from Hawaii and means "very strong."

Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579
Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579

This fish is very important to people who fish for sport. It is also a popular food in many countries around the world.

These fish have a very special way they look and move.

Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579
Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579

They have gold sides and bright blue or green colors on their backs. Adult males have a large hump on their foreheads. Females have more rounded heads instead. To find food, they swim very fast through the water. They can reach speeds of 49 miles per hour. They hunt for things like flying fish, squid, and crabs. They often swim near floating wood or seaweed to find prey.

Humans have known about this fish for a very long time.

Fresco of a fisherman, Akrotiri, Greece
Fresco of a fisherman, Akrotiri, Greece

An old painting from Greece shows a fisherman with a fish from around 1600 BCE. In 1758, a scientist named Linnaeus gave them their official name. He used a Greek word that means "top." This is because they are often found near the surface. Today, people catch them for food in many places. In places like Malta and Sicily, they have special local names. Some fishermen even use boats with harpoons to catch them.

There are many interesting numbers to know about the mahi-mahi.

Common dolphinfish, capture production, thousand tonnes, 1950-2022
Common dolphinfish, capture production, thousand tonnes, 1950-2022

These fish usually live for about four or five years. They can grow to be about one meter long. A single female can lay up to 1,000,000 eggs at once. This happens when they spawn in warm ocean currents. They become adults very quickly, often by 4 or 5 months old. Scientists track how many are caught each year. This helps us understand if the fish population is healthy.

Learning about the mahi-mahi helps us see how everything is linked.

Even the stars in the sky are connected to this fish. There is a constellation named Dorado that was created in 1598. It sits near a group of stars called the Large Magellanic Cloud. On Earth, the fish helps us learn about ocean health. We study how they eat tiny things called zooplankton. We also learn how to catch them in ways that protect the sea. This fish is a bright part of our big, blue world.

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🖼️ Images & Media (4)
File:Common Dolphinfish, 886 Cannery Row, Monterey, CA 93940, USA imported from iNaturalist photo 254881579.jpg
Common Dolphinfish, 886 Cannery Row,...
File:Fresco of a fisherman, Akrotiri, Greece.jpg
Fresco of a fisherman, Akrotiri, Greece.jpg
File:Common dolphinfish, capture production, thousand tonnes, 1950-2022.svg
Common dolphinfish, capture production,...
File:Dorado (Annotated) (dorado-ann).jpg
Dorado (Annotated) (dorado-ann).jpg
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