|
Research
on the evolution of Chinese Goldfish
The first country breeding fish in pond
China
is the first country breeding fish in pond and there has been long history
raising fresh water fish since the end of Zhou and the beginning of Yin Dynasty
(about 11th Century B.C) when the earliest record occurred .Over 2400 years ago,
Fan Li, the Premiere of Yue State summarized fish-farming experience and wrote a
book, which is the first specialist edition in the world, So when Chinese people
discovered golden crucian carp, they were able to produce and reproduce fish
following the related theories. It should be in South Song
Dynasty (about 900 years ago) that Chinese people began cultivating goldfish in
pond . After long-term artificial cultivation, goldfish varieties have been on
the rise, especially, with the advance of modern genetics and utilization of
various hybridizations, the total varieties can amount to 300. Compared with
plants and other animals goldfish has much more variation in color and body
shape, which has big difference from its ancestor-wild crucian
carp. The evolution of goldfish can demonstrate that creature is not constant,
can evolve from one single form to various forms; the history cultivating
goldfish can also illustrate creature has hereditary variation. It is by
following this very theory consciously or unconsciously, Chinese goldfish
culturist achieved the result today .
|