Common carp aquaculture in Neolithic China dates back 8,000 years

Tsuneo Nakajima1, Mark J Hudson2, Junzo Uchiyama3

  • 1Lake Biwa Museum, Kusatsu, Japan. nakajima.tsuneo@sage.ocn.ne.jp.

Nature Ecology & Evolution
|September 19, 2019
PubMed

Related Concept Videos

Radioactive Decay and Radiometric Dating02:48

Radioactive Decay and Radiometric Dating

Radioactivity is a spontaneous disintegration of an unstable nuclide and is a random process, as all the nuclei in the sample do not decay simultaneously. The number of disintegrations per unit time is called the activity (A), which is directly proportional to the number of nuclei in the sample. The decay constant (λ) is an average probability of decay per nucleus in unit time.
36.9K
Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research09:41

Isolation of Quartz Grains for Optically Stimulated Luminescence (OSL) Dating of Quaternary Sediments for Paleoenvironmental Research

This protocol is for the isolation of quartz grains by size for luminescence dating of sediments. Outlined are physical cleansing and chemical digestions by soaking sequentially in H2O2, HCl, HF, and HCl again to isolate quartz grains. The quartz purity is quantified with microscopic assessment, Raman spectroscopy, and IR depletion...
3.4K
Dendrochronological Dating and Provenancing of String Instruments10:26

Dendrochronological Dating and Provenancing of String Instruments

The dendrochronological analysis of a stringed instrument requires inspecting the top plate, measuring the tree ring widths, establishing the chronology of the instrument, and dating through determining the end date-the year of the formation of the most recent tree ring.
3.2K
Common Ion Effect03:24

Common Ion Effect

Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Châtelier’s principle. Consider the dissolution of silver iodide:
46.0K