Which among the following is a freshwater fish, with high nutritional value?
Tuna is a salt water fish found in the ocean. Tunas(fish belonging to the family Scombridae and genus Thunnus) are exclusively salt water fish living in the open ocean. Tunaswims constantly and are capable of bursts of extraordinary speed andare the most highly specialized fishes in regard to sustained, high levels of activity. They swim continuously to counterbalance their negative buoyancy, and are able to travel hundreds of miles.
Cat Fish(order Siluriformes) a diverse group of fish. They are named for their prominent barbels, slender, whisker-like tactile organs near the mouth, which give the image of cat-like whiskers. Eating catfish also boosts your body's intake of heart-healthy amino acids. In addition, it is noted that a single serving of catfish provides a whopping 40-percent of an adult's daily intake of vitamin B-12, which helps the body convert food into energy.
Mackerel, a salt water fish, is a common name applied to a number of different species of pelagic fish, mostly, but not exclusively, from the family Scombridae. They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment.
Sharks, like other fish, possess gills in order to breathe underwater. They generally have about five to seven-gill slits that are located on either side of their bodies. These gills filter the ocean water in order to obtain the oxygen that is necessary for these creatures to survive. Think of these gills as the “lungs” of the shark. Sharks are salt water fishes.