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Japanese koi carp are coldwater fish. The term coldwater fish can have different meanings in different contexts.. In the context of fishkeeping, it refers to ornamental fish species that tolerate the temperatures of a typical indoor aquarium well and do not require a heater to remain active, as opposed to tropical fish whom need a heater to survive in the room temperatures of temperate climates;
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups. Ambiguous common names are accompanied by their possible meanings. Scientific names for individual species and higher taxa are included in parentheses.
There are 531 species of fishes in Pakistan, of these, 233 are freshwater fish. [1] The mahseer is the national fish of Pakistan. Notopterus notoperus; Notopterus chitala; Naziritor zhobensis; Triplophysa stoliczkai - found only in Deosai; Diptyichus maculatus - found only in Deosai; Ptychobarbus conirostis - found only in Deosai
The egg-fish goldfish is a goldfish that lacks a dorsal fin and has a pronounced egg-shaped body. [ 41 ] [ 42 ] The Shukin is a Ranchu-like goldfish developed from Ranchus and Orandas at the end of the 19th century in Japan.
In the world, and hence in Pakistan, fish is considered a cheap source of protein diet. In 2000, per capita food supply from fish and fishery products (kg/person) in Pakistan was 2, in Asia was 18 and in World was 16. Whereas, fish protein as a percentage of total protein supply in Pakistan was only 1%, in Asia was 10% and in World was 6%. [2]
Freshwater fish may be either coldwater or tropical species. Although freshwater aquariums can be set up as community tanks, coldwater and tropical fish are generally not mixed due to incompatibilities in temperature requirements. Coldwater aquariums house goldfish and other species that do not require a heating apparatus.
The Hindi and Kumaoni name of mahāsir, mahāser, or mahāsaulā is used for a number of fishes of the group. Several sources of the common name mahseer have been suggested: It has been said to be derived from Sanskrit, while others claim it is derived from Indo-Persian, mahi- fish and sher- tiger or "tiger among fish" in Persian.
Because trout are cold water fish, during the winter they move from up-deep to the shallows, replacing the small fish that inhabit the area during the summer. Trout in winter constantly cruise in shallow depths looking for food, usually traveling in groups, although bigger fish may travel alone and in water that's somewhat deeper, around 12 ...