Ancestor (jade)

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Eckwarder Ahndeich

Today, the ancestor is a tributary of the Jade in the northeastern Jade Bay , for which the Wilhelmshaven Waterways and Shipping Office is responsible , as is the case for all fairways in the Jade area . A freshwater body called Ahne no longer exists in the Wesermarsch today.

Development of the Jade Bay and Weser Delta; Silting up of water surfaces created since 1300 from 1500 only shown indirectly via the dike
→ Enlargements: • 33% (216 dpi) , • 50% (144 dpi)

Before the formation of the Jadebusen in the late Middle Ages, the ancestor was a left tributary of the Weser . After Clemens flood on November 23, 1334 was a Heete said connection between the extended through the flood Jade Bay and the Weser, the Butjadingen made to an island and from Stadland separated. The original ancestor became a tributary of the Heete. After the Second Marcellus Flood in 1362 there were connections, sometimes even a merger between the Tiderinne Lockfleth , created in 1337, and the ancestor. At the Inte monastery, the monastery field was now an island between the then called Alte Ahne stretch of water in the north and the new large expanse of water in the west and south, in which the priel adjoining Lockfleth was also called the ancestor or Ante river. The original continuity to the Alte Ahne was only interrupted in the middle of the 17th century by a particularly stable section of the dike, the Ahne surcharge (see map on the left).

The "Alte Ahne" inland and the creek "Ahne Flus (s)" left = north of the Oberahnesche fields in the Jade Bay 1645, tidal range 12 feet

Since the break of the Weser dike in 1384 at the site of today's Brake , the resulting arm of the Harrier Brake flowed into the Lockfleth and thus into the Jade Bay. The wide, navigable water was not interrupted until 1515 by dikes at Ovelgönne . The drainage lasted until about the middle of the 17th century. From the formerly broad arm of the Weser, pulling ditches are left, one of which still bears the name Lockfleth today , another the name Hoben , as the northern section of the former tider channel was also called at the time of its existence.

In the Jade Bay, the priel of the ancestors ran near the eastern north coast towards the Inner Jade. It separated the Oberahnesche fields from Butjadingen, the last uninhabited islands in the Jade Bay, which were washed away by the North Sea over the centuries.

The Ahndeiche on the northeast bank of the Jadebusen and in Stollhamm still remind of the ancestors .

Web links

Individual evidence

  1. WSA Wilhelmshaven: Peilwesen ( Memento of the original from December 16, 2013 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.wsa-wilhelmshaven.de
  2. Marcus Malsy: Analysis of the inflow and drainage systems in the Wesermarsch: history, function and strategies for adapting to climate change . Thesis. Carl von Ossietzky University of Oldenburg, April 30, 2010, p. 33
  3. Anonymous map of the Oldenburg dykes, drawn around 1650, Oldenburg State Archives, Best. 298 Z No. 272
  4. Johann Conrad Musculus : Delineatio of the Oberahnesche fields (1645 ff., Version c) (Landesarchiv Oldenburg Best 298, No. 652 c)
  5. Michael Ruland & Wolfram Wartenberg: Geological, sedimentological and diatomological investigations on a drill core in the area of ​​the Oberahnsche Fields (east of the Jadebusen) ( Memento of the original from February 22, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked . Please check the original and archive link according to the instructions and then remove this notice. . 2011 @1@ 2Template: Webachiv / IABot / databases.eucc-d.de

Coordinates: 53 ° 32 ′ 0 "  N , 8 ° 12 ′ 27"  E