European River Zonation

The classification of European rivers comes from the fish fauna found in them. Changes in taxonomic composition relate to physical and chemical changes that occur longitudinally.

Famous quotes containing the words european and/or river:

    Unsophisticated and confiding, they are easily led into every vice, and humanity weeps over the ruin thus remorselessly inflicted upon them by their European civilizers.
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    This ferry was as busy as a beaver dam, and all the world seemed anxious to get across the Merrimack River at this particular point, waiting to get set over,—children with their two cents done up in paper, jail-birds broke lose and constable with warrant, travelers from distant lands to distant lands, men and women to whom the Merrimack River was a bar.
    Henry David Thoreau (1817–1862)