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Wouter-Jan Strietman | profile | all galleries >> Whales & Dolphins >> Oosterschelde Harbour Porpoise / Bruinvis Survey; 19-09-2009 tree view | thumbnails | slideshow

Oosterschelde Harbour Porpoise / Bruinvis Survey; 19-09-2009

I took part in a joint Project Rugvin/WWF survey of the Oosterschelde survey to count the number of (resident?) harbour porpoises. In total we counted between 30-40 porpoises. This is the first time ever that a population count has been made of harbour porpoises in this area.

The Oosterschelde (Eastern Scheldt) is an estuary in Zeeland, the Netherlands. Since May 8, 2002, the entire Oosterschelde was designated a national park. After the North Sea flood of 1953, it was decided to close off the Oosterschelde by means of a dam and barrier. The Oosterscheldekering (Eastern Scheldt Storm Surge Barrier) is designed to protect a large part of the Netherlands from flooding. A four kilometre long section has huge sluice-gate-type doors that are normally open, but can be closed under adverse weather conditions.

Part of future research will be to determine if Harbour Porpoises pass the Storm Surge Barrier and if the population changes over time.
Scanning the horizon
Scanning the horizon
One of the 8 observer boats
One of the 8 observer boats
Some of the observer boats in line
Some of the observer boats in line
Harbour Porpoises / Bruinvissen near the Zeelandbrug
Harbour Porpoises / Bruinvissen near the Zeelandbrug
Porpoising Porpoise / Bruinvis
Porpoising Porpoise / Bruinvis
Harbour Porpoise underwater / Bruinvis onderwater
Harbour Porpoise underwater / Bruinvis onderwater
Harbour Porpoise / Bruinvis next to the boat - Zierikzee II
Harbour Porpoise / Bruinvis next to the boat - Zierikzee II
Harbour Porpoise breaking the surface 03
Harbour Porpoise breaking the surface 03
Harbour Porpoise / Bruinvis right next to the boat - Zierikzee IV
Harbour Porpoise / Bruinvis right next to the boat - Zierikzee IV
Harbour Porpoise calf
Harbour Porpoise calf
Harbour Porpoise mother-calf pair 02
Harbour Porpoise mother-calf pair 02
Harbour Porpoise / Bruinvis - mother and calf II
Harbour Porpoise / Bruinvis - mother and calf II