The Nature Conservancy. Protecting nature. Preserving life.™
We're working with you to make a positive impact around the world in more than 30 countries, all 50 United States and your backyard. Support our work
Fish
Sharks, Eels, Sturgeon...
Fish have more recognized species than any other vertebrate and their habitats range from the smallest freshwater streams to the deepest seafloor canyons. They grow from a fraction of an inch to 50 feet and live anywhere from the artic waters to the tropics. Fish skeletons can either be cartilaginous or bony, a category that includes the vast majority of fish.
Salmon
Salmon are born in fresh water, migrate to the ocean as adults, and then return to fresh water to breed.
American Eel
Science has never witnessed the spawning secrets of the American eel. Learn More
Blue Tang
One of more than 70 species of surgeonfish, the blue tang inhabits coastal waters, coral reefs, and near-shore rocky areas. Learn More
Giant Barracuda
Found across the globe in almost all tropical seas, the great barracuda is one of 20 barracuda species. Learn More
Great White Shark
This fearsome predator attacks very few people. Fur seals are not so lucky, though! Learn more
Green Moray Eel
The moray eel hides in reef holes and waits for its prey to swim within reach. Learn more
Lake Sturgeon
Sturgeon are believed to be one of the most ancient families of fish on the planet. Lean more
Whale Shark
The planet's largest living fish, this docile giant lives in warm waters around the planet. Learn more
Underwater View
Watch an audio slideshow
Underwater Photography
Watch a slideshow
Read More
We need to act now, before it's too late. Watch the Video, Take Action
We're addressing Latin America's most pressing conservation issues. Read the Story
Share
Donate to The Nature Conservancy
When you donate today, you’ll help The Nature Conservancy protect the most vital habitats on Earth.