Dear Rui
I'm sure you have seen the information but the transition
of the Grevelingen estuary into a lake in the 1970s/early
1980's is a similar case. Wim Wolff (now at the University
of Groningen) did studies on the biology at the transition.
Wim had one paper in Est Coast Shelf Science at the time.
In the UK, there are few cases like this but one is the
Wansbeck estuary in NE England. This had an amenity barrage
built in the 1970's and became brackish due to the
freshwater run-off and a small input of seawater through
overtopping. However, during some winter periods, the
sluices are opened to allow flushing of the system. Martin
Wilkinson at Heriot-Watt University in Edinburgh has
studied the macroalgal changes in the system. Get back to
me if you need other details.
Best wishes
Mike Elliott (address below)
On Tue, 28 Sep 1999 15:52:03 +0200 Rui Ferreira
<[log in to unmask]> wrote:
> Hello everybody,
>
> I am currently working on a decision model for the freshwater inlet in the
> East-Schelde in The Netherlands. The estuary is around 40 km x 10 km, with
> to arms to the East. In the mouth there is a storm dam and the two fresh
> water inlets are closed. Observed surface salinity is something like 29-32
> ppt. The average freshwater flow during the 60's was between 50 and 100
> m3/s, while nowadays is reduced to 9 m3/s.
>
> There is interest in converting the present marine environment into a
> brackish zone. Do you know of any cases addressing this transition (or
> restoration)?
>
> Best regards,
>
> Rui Ferreira
>
> ___________________________________________________________________________
>
> Rui M. Almeida Ferreira
> Mail Address: E-mail Address:
> University of Maastricht [log in to unmask]
> Department of Computer Science Office Phone:
> P.O. Box 616 +31 43 3883481
> 6200 MD Maastricht
> The Netherlands
> ___________________________________________________________________________
----------------------
Dr. Mike Elliott
Institute of Estuarine & Coastal Studies,
& Dept. of Biological Sciences
University of Hull
Hull, HU6 7RX, UK
Tel. +44 (0)1482 465503
Fax. +44 (0)1482 465458 (Dept.)
+44 (0)1482 465001 (IECS)
[log in to unmask]
For more information about the Institute see:
www.hull.ac.uk/iecs or Tel. +44 (0)1482 465667
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