Introduction of Holy Lake
Synopsis of Holy Lake
Qinghai Lake— the largest salt lake in china, located in the north-east of Qinghai Province. It occupied 4456sq. km of water area, forming the unique lake sight of highland, where gulls flying and fishing swimming, really a paradise for birds and fish. So that it named the most beautiful lake in china
Qinghai Lake, its own huge body and plants around it, not only hold balance and adjust the lake ecological environment, but also maintain the northeast ecologic safety of Qinghai-Tibet Plateau, it is the natural screen to control west desert to eastwardly weedy. The lake area’s particular climate, geography and hydrology cultivate variously species and to be the most species diversity area in Qinghai, for that getting high attention of The World Biological Diversity Conservation Organization.
There are five small islands upon the lake, and among them the Heart-sea Hill is the largest. The well-known Bird island on the west of lake, having area 0.11sq.km, There are more than ten kinds of migratory birds rest there, for instance grey-head wild goose, fish gull, brown-head gull, cormorant.., accounting for more than 100,000. Now there has built up the natural reservation area. And the lake teems with naked carp which is full with nutritive value.
The Great Treasure in the Lake
The growing in the lake highland unique precious water wild animal— Qinghai Lake’s naked carp (is also named Naked carp), is the core of ecosystem intergrowth of fish and bird, is the precondition of birds gathering, and is the bond of realizing the intergrowth of fish and bird.
Qinghai Lake’s naked carp, with long body and tapered head, shape as hoof, with normal palate but broad lip, and without beard and scale. This kind of fish is omnivorous and growing slowly. It is the main kind also the unique kind fish in the Qinghai Lake. With its delicious meat, it has been the one main food of residents of Qinghai Lake area, and also being favorable by people in the world.
Collecting Some Material about Naked Carp
Help people more acknowledgeable with naked carp
The correlation data which according to us consults demonstrated that, the Lake Qinghai fishery was in 1958 starts to develop massively, its primitive resources reserves approximately 320,000 tons. In 1960 the highest annual production amounted to 28,000 tons. The 60's yearly average output 1.1 ton, the fishing attains the thing average body long 2 8.8 centimeters, the average fishing for age is 10 ages, every hundred catties fishing attain the mantissa are 108.7 0 age yearly average output 4400 tons, the fishing attains the thing average body length 26.9 centimeters, the average age 8 ages, every hundred catties fishing attain mantissa 1 36.8 0 age yearly average output is 3200 tons, every hundred catties fishing attain mantissa 167.9 0 age yearly average output only is 2263 tons, the fishing attains the thing average body long 2 4.0 centimeters, the average age is 5 ages, every hundred catties fishing attain mantissa 286.Because the global climate changes arid warm, the Lake Qinghai ecological environment worsens continually, the Lake Qinghai peripheral 100 strip enter the lake rivers withered to present only -odd insufficiency ten, the rivers, block the flow, the cause naked carp spawning ground withers, naked carp's community and the population structure are destructed, in addition the artificial over-trapping randomly fishes, the naked carp resources are in during the serious decline, Lake Qinghai has not had the development ability.
May. 01, 2009
In the naked carp community, the milted is more than the spawned, so that the reproductive capacity is low, and cherishes the egg quantity equally is 16242 grains. They have obvious breeding migration that breed in the Qinghai Lake every year from at the end of March to August. Their spawning place is generally in the slowly speed flow and substrate for the gravel, pebbles or spinning, 0.1-1.1 m water depth in the crystal clear river.
In reproduction season, if the water temperature is lower than 6℃ or surpasses 17.5℃, then they will not have breeding activity. The busy season for Spawn is in the middle May to the middle June. The activity of Spawn is carrying on the day and night, but the most exuberant moment is between 23 o'clock and the next day 3 o'clock. They lay the eggs in the egg nest gathered, and their eggs have the character of heavy and muscovite.
Every year the little naked carp are born in fresh water and grow gradually in the Qinghai Lake, and after they grown-up, they swim to return to the hometown again reproduce their offspring. The reason is that the content salt of Qinghai Lake is too high which reaches as high as 12.49 ‰ to 15.5 ‰, moreover the alkalinity is high as well, the PH can be achieved 9.2, sometimes reached above 9.2, and in the altitude place even surpassed 10 PH, the high salinity and alkalinity which regarded as fatal to naked carp's germ cells growth.
In order to reproduce descendant, the naked carp have to swim in adverse current and choose appropriate enter of rivers to lay their spawn on the river bed, the journey amounts to several hundred kilometers; it is no doubt that this is a difficult journey.
May. 01, 2009
The naked carp is cold water fish. Would love to live in shallow water, but also commonly found in beach water whirl side or between the rocks where water had a more moderate, the beginning of winter, living in the potential pool, rock seam. Adaptability of the living conditions and not strict requirements, the smaller and shallower lake reservoirs can live in fresh water can also be life.
After the juvenile fish hatches, multi-cluster region at the mouth of the shallow water. Juvenile stage, the staple food of animal feed; into omnivorous fish, Qinghai Lake in all of its food plants and animals are the main food for diatoms, copepods, Cladode, Rotifer category, Amphipods, aquatic insects such as midge larvae, and even the juvenile fish and swallowed it also be Triplophysa. April 17th, 2009
Apr. 30, 2009