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The concentration of oxygen in water is lower than air and it diffuses more slowly. In a litre of freshwater the oxygen content is 8 cm 3 per litre compared to 210 in the same volume of air. [7] Water is 777 times more dense than air and is 100 times more viscous. [7] Oxygen has a diffusion rate in air 10,000 times greater than in water. [7]
Rohu is rich in Omega 3 fatty acids, Vitamin A, Vitamin B and Vitamin C. [13] It is also rich in Vitamin D, a Vitamin which is present only in a few foods and consumption of the fish may prevent Osteoporosis , a Vitamin D deficiency disease. [ 14 ]
Red represents a higher value (e.g. of temperature or the partial pressure of a gas) than blue so the property being transported in the channels flows from red to blue. In fish a countercurrent flow (lower diagram) of blood and water in the gills is used to extract oxygen from the environment. [6] [7] [8] All basal vertebrates breathe with gills.
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
The masu salmon (Oncorhynchus masou), also known as masu (Japanese: マス, lit. 'salmon trout') or cherry trout (桜鱒, サクラマス, sakura masu) in Japan, [1] [2] is a species of salmonid belonging to the genus Oncorhynchus, found in the North Pacific along Northeast/East Asian coasts from the Russian Far East (Primorsky, Kamchatka Peninsula, Sakhalin and Kuril Islands) to south through ...
Cyprinidae is a family of freshwater fish commonly called the carp or minnow family, including the carps, the true minnows, and their relatives the barbs and barbels, among others.
According to Kendall et al. 1984 [2] [3] there are three main developmental stages of fish: Egg stage: From spawning to hatching. This stage is named so, instead of being called an embryonic stage, because there are aspects, such as those to do with the egg envelope, that are not just embryonic aspects.
Mackerel is a common name applied to a number of different species of pelagic fish, mostly from the family Scombridae.They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment.