A fish is a cold blooded, aquatic species of vertebrates that in most cases have scales and breathe through gills. Most fish has two sets of paired fins and any number of unpaired fins. Fish can live in both fresh and salt water habitats. Some fish only occupy fresh water such as rivers, lakes and ponds. Whilst others are salt water species and live in the seas and oceans of the world. There are more than 30,000 species of fish worldwide.
What is the Fastest Saltwater Fish?
The fastest saltwater fish is the Indo-pacific Sailfish. It has been clocked at a top speed of 68 miles per hour of 100 kilometers per hour. They live in both the Atlantic and Pacific oceans. The sailfish that live in the Pacific Ocean grow larger than those in the Atlantic and can measure up to 10 feet in length. Sailfish prefer warmer ocean temperatures and are often sighted and caught on warmer waters. Sailfish are a very fast growing species and studies have shown the sailfish eggs hatch 36 hours after they are laid by the mother. A hatchling can grow up to 6 feet in one year.
You can see sailfish hunting baitfish in this video:
What is the Fastest Freshwater Fish?
There is some controversy about which is the fastest freshwater fish. Both the Pike Fish and the Rainbow Trout are named fastest fresh water fish. However, studies show the Rainbow trout is the ninth fastest fish when compared to all types of fish fresh and salt water varieties. The Rainbow Trout can reach speed of up to 13 miles per hour.