نتایج جستجو برای: the yellow river
تعداد نتایج: 16074016 فیلتر نتایج به سال:
BACKGROUND The common carp is an important aquaculture species that is widely distributed across the world. During the long history of carp domestication, numerous carp strains with diverse skin colors have been established. Skin color is used as a visual criterion to determine the market value of carp. However, the genetic basis of common carp skin color has not been extensively studied. MET...
It is crucial to establish a reasonable ecological compensation mechanism for the Yellow River Basin. This study uses calculating model estimate value of total cost protection in upstream. On this basis, an apportion used reach standard each province midstream and downstream. The results provide scientific reference standards
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