Most sources believe that the fastest species of fish is the Indo-Pacific Sailfish, Istiophorus platypterus. According to Johnson and Gill (see below) the species has been clocked in excess of 110 km/h (68 mph) over short periods. The Indo-Pacific Sailfish grows to over 3.4 m in total length and 100 kg in weight.
High-speed filming at 1,000–2,000 frames per second has revealed that two species of pipefish – the bay pipefish (Syngnathus leptorhynchus) and the blue-striped pipefish (Doryrhamphus excisus) – and the longspine snipefish (Macroramphosus scolopax) can detect and gulp down prey in as little as two milliseconds.
The dwarf seahorse (Hippocampus zosterae) is a species of seahorse found in the subtidal aquatic beds of the Bahamas and parts of the United States. It is threatened by habitat loss. According to Guinness World Records, it is the slowest-moving fish, with a top speed of about 5 feet (1.5 m) per hour.
Attaining speeds of up to 68 mph (109 kmph), the sailfish is atop the leaderboard of fastest fishes on the planet. It is also one of the most highly prized game fishes. As for the size, sailfish generally do not grow to more than 3 meters (9.8 ft) in length and rarely weigh over 90 kg (200 lb).
The cheetah is the fastest animal on earth, right? Well, it's true that the quick cat is the fastest animal on land, but in the water, the sailfish takes the prize. Scientists estimate it can leap out of the water at 68 miles per hour, as fast as a cheetah can run!
Sailfish are often called the fastest fish in the world. According to the Australian Museum, the fish have been clocked swimming at more than 68 mph (110 kph). Sailfish sometimes engage in group hunting behavior near the ocean surface, where humans can more easily witness the activity.
Most sources believe that the fastest species of fish is the Indo-Pacific Sailfish, Istiophorus platypterus. According to Johnson and Gill (see below) the species has been clocked in excess of 110 km/h (68 mph) over short periods. The Indo-Pacific Sailfish grows to over 3.4 m in total length and 100 kg in weight.
Their specialized body shape, fins and scales enable some species of tuna to swim as fast as 43 miles per hour.
The Sailfish is the Fastest Fish in the World.
The common dolphin (delphinus delphis) holds the title for fastest marine mammal, reaching speeds of 60 km/h (37 mph). Playful swimmers, dolphins can often be seen riding swells and ship's wakes.
The salmon is obviously the more powerful swimmer, but a study has revealed that the jellyfish outclasses it in efficiency. For its mass, the jellyfish spends less energy to travel a given distance than any other swimming animal.
Fastest bird and fastest animal: Peregrine falcon
The fastest animal in the world is the peregrine falcon.
The Shortfin Mako Shark (or Lamniformes lamnidae) is a large, predatory shark. It's the fastest shark on the planet and one of the quickest ocean animals. It's just as known for its incredible jumping ability and leaping crazy heights while hunting.
Meet the bluefin tuna, the toughest fish in the sea - Grantly | TED-Ed.
Goliath Tigerfish
Smart, aggressive with razor-sharp teeth, and not shy around humans (they are known to attack), Goliath Tigerfish are the hardest freshwater fish to land.
Sooty grunter are pound for pound the hardest fighting freshwater fish in the north of Australia - probably all of Australia.
Fish that are higher in fat, such as salmon, mackerel, herring, anchovies, and sardines, have much stronger flavors than other fish. These are the fish known for their heart-healthy omega-3 fats.
Worst: Orange Roughy
These fish, also known as slimeheads, can live up to 150 years. But that means they've been around unhealthy elements, like mercury, for a long time. So they're not the best option for a healthy diet.