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Differences between Swordfish and Marlin

Differences between Swordfish and Marlin

Both swordfish and marlin are highly prized game fish, but there are some differences between them. Swordfish typically have a longer and thinner body than marlins, and they prefer warmer waters. Marlins are more common in the Atlantic and Pacific oceans, while swordfish are found in temperate and tropical waters around the world. Swordfish are also known for their powerful jumping ability, while marlins are slower but can dive to great depths. Finally, swordfish tend to be harder fighters than marlins when hooked on a line.

What is Swordfish?

Swordfish are large, migratory fish that are found in tropical and temperate waters around the world. Swordfish get their name from their long, flat bill, which is used to slash at prey. Swordfish are fast swimmers and can reach speeds of up to 60 miles per hour. Swordfish are apex predators and feed on a variety of fish, squid, and crustaceans. Swordfish are popular among recreational fishermen but are also harvested commercially for their meat, which is considered a delicacy in many cultures. Swordfish are also a popular choice for sushi and sashimi.

What is Marlin?

  • Marlin is a type of fish that is found in tropical and subtropical waters around the world. Marlin is known for their long, bill, which they use to feed on other fish. Marlin is also popular among sport fishermen, as they are difficult to catch and put up a good fight when hooked.
  • Marlin is sometimes called ‘gamefish’, as they are often sought after by fishermen. There are two main types of Marlin – Blue Marlin and White Marlin. Blue Marlin is the largest of the two, reaching lengths of up to 14 feet and weights of up to 2000 pounds.
  • White Marlin are smaller, with a maximum length of 10 feet and a maximum weight of 150 pounds. Marlin is also one of the fastest fish in the ocean, capable of swimming at speeds of up to 60 miles per hour.

Differences between Swordfish and Marlin

Swordfish and marlin are both members of the billfish family, which also includes sailfish and common game fish like tuna and mackerel. Swordfish are found in all the world’s oceans, while marlin is found mostly in tropical and subtropical waters.

  • Swordfish can grow up to 14 feet long and weigh up to 2000 pounds, while marlin can grow up to 18 feet long and weigh up to 1500 pounds. Swordfish are dark blue on top and white on the bottom, with a long, sword-like Bill.
  • Marlins are blue or dark green on top and light green or white on the bottom, with a long Bill that is curved at the tip. Swordfish are migratory fish, moving towards the poles in summer and towards the equator in winter.
  • Marlin is not migratory fish. Swordfish are mostly solitary fish, while marlin often travels in schools. Swordfish are apex predators, while marlin is not. Swordfish are commercially fished for their meat, oil, and bills, while marlin is not commercially fished.


The swordfish and the marlin are both large, predatory fish that can be found in the Atlantic Ocean. They have many similarities, but there are also some key differences between them. The swordfish is smaller than the marlin and has a protruding lower jaw that gives it its characteristic “sword” shape. The marlin is larger and has a more streamlined body. It also has two dorsal fins, while the swordfish only has one. Marlins are considered to be more aggressive predators than swordfish and they are also thought to be faster swimmers.

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