Bluefin tuna are prized as sushi meat and by sport fishers for their strength and speed. Their popularity, however, has led to overfishing of the species. The Atlantic bluefin tuna ranges throughout much of the North Atlantic Ocean. They spawn in the Gulf of Mexico and the Mediterranean Sea. These huge fish reach up to 2 meters (6.56 feet) in length and reach speeds of 88.5 kilometers per hour (55 miles per hour).

  1. What are some characteristics of bluefin tuna?

  2. What makes bluefin tuna different from other tuna species?

  3. Why has overfishing of bluefin tuna taken place?

  4. Why is it difficult to manage this species of fish?


management of a natural resource to prevent exploitation, destruction, or neglect.

fisheries scientist

person who studies or manages the industry of catching, harvesting, and selling fish.


industry or occupation of harvesting fish, either in the wild or through aquaculture.

fishing capacity

relationship between a fishery and the way fish are managed there, including the number of fish harvested, methods used, and sustainability for future generations of fishermen and consumers.

fishing ground

large area of the ocean where fish can usually be caught.

fish stock

amount of fish available to be harvested in a specific area at a specific time.


to give birth to.

spawning grounds

area where fish come each year to reproduce.