Environmental Engineering Reference
In-Depth Information
ranean sequences, however, show identity or strong similarity to sequences
from freshwater strains and therefore may not represent indigenous low-light
indicators for photic zone anoxia. In comparison to aromatic carotenoids, fossil
DNA sequences with their significantly larger information content thus permit
a more differentiated view of past environmental conditions. It is also in this
respect that the Black Sea serves as the most important contemporary model
system for photic zone anoxia in the past.
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