Background on Billfish
The Lions and Tigers of the Sea
Marlin and other billfish are top-of-the-foodchain predators in our world’s oceans. They’re the lions and tigers of the sea. Learn more about the role billfish play in the ocean, and how overfishing is affecting their populations.
More About Billfish
Marlin, sailfish and spearfish are all "billfish." There are many different types of billfish. Learn what a billfish is and what distinguishes one billfish species from another.
Photo: Jon Schwartz
Or, view our billfish fact sheets:
Global Status of Marlin and other Billfish
Marlin, sailfish and spearfish populations are being decimated by commercial fishing. Learn more about billfish populations in the Atlantic, Pacific and Indian oceans.
Watch a video clip