Red tannin water in a Peat Bog – Étang de la Gruère and Düdinger Möser, Switzerland


 
 
 
 

The Étang de la Gruère peat bog is located in the Jura mountain range in Switzerland. The small lake in it was formed in the 17th century, when a dam was built for a mill. It is filled with red and acid tannin water, what creates strange, surreal underwater images. The water of the peat bog empties finally in the Birs River, a tributary of the Rhine River.
The Düdinger Möser marshlands cover approximately 22 hectares. Locally 7 different geographical names are used to denote separate parts of the lands: Düdinger Moos (in the stricter sense), Ottisbergmoos, Garmiswilwil, Hexenweiher, Tiefmoos and Waldeggmoos. The marshlands were formed in the last ice age. 18,000 years ago the Rhone glacier covered this region. 14,000 years ago, temperatures were rising and the ice disappeared leaving back small lakes and marshy flat lands. Due to a mild climate the vegetation grew luxuriantly. Dead plants did not decay entirely as the environment was saturated with water and micro-organisms had too little oxygen to feed upon. As more and more plants heaped up, lakes turned into land. The land developed into woodlands accommodating willow, birch and alder trees. The water of the Düdinger Möser empties finally in the Saane River, a tributary of the Rhine River.

Freshwater Ecoregion of the World : #404 Central & Western Europe

Major Habitat Type: temperate floodplain rivers and wetlands


Produced in 2013 and 2020 - 2022. Red dots indicate personal favorites.

Underwater Photography : Düdinger Möser

       

F37-151 Tench

F37-152 Tench

F37-153 Tench

 F37-154 Tench

 F37-155 Tench

 X99-1738

 F37-150 Tench

F37-149 Tench

 F37-148 Tench

 F37-147 Tench

F37-110 Tench

 F37-109 Tench

F37-108 Tench

 F37-146 Tench

F37-145 Tench

 F37-144 Tench

 F37-143 Tench

F37-142 Tench

 F37-141 Tench

F37-140 Tench

F37-139 Tench

F37-138 Tench

F37-137 Tench

 F37-136 Tench

 F37-135 Tench

F37-134
Tench

 F37-133 Tench

 F37-132 Tench

F37-131 Tench

F37-130 Tench

F37-129 Tench

F37-128 Tench

F37-127 Tench

 F37-126 Tench

F37-125 Tench

F37-124 Tench

F37-123 Tench

F37-122 Tench

F37-121 Tench

F37-120 Tench

 F37-119 Tench

 F37-118 Tench

F37-117 Tench

F37-116 Tench

F37-110 Tench

 F37-113 Tench

 F37-112 Tench

F37-111 Tench

       

 F22-105 Red-eye rudd

 F22-104 Red-eye rudd

F22-103 Red-eye rudd

 F22-102 Red-eye rudd

F22-101 Red-eye rudd

F22-100 Red-eye rudd

 F22-099 Red-eye rudd

F22-098 Red-eye rudd

F22-097 Red-eye rudd

F22-096 Red-eye rudd

F22-095 Red-eye rudd

F22-094 Red-eye rudd

 F22-093 Red-eye rudd

F22-092 Red-eye rudd

F22-091 Red-eye rudd

 F22-090 Red-eye rudd

 F22-089 Red-eye rudd

F22-088 Red-eye rudd

F22-087 Red-eye rudd

 F22-086 Red-eye rudd

F22-085 Red-eye rudd

F22-084
Red-eye rudd

 F22-083 Red-eye rudd

F22-082 Red-eye rudd

F22-081 Red-eye rudd

F22-080 Red-eye rudd

F22-078 Red-eye rudd

F22-73 Red-eye rudd

F22-74 Red-eye rudd

  F22-75 Red-eye rudd

F22-76 Red-eye rudd

  F22-77 Red-eye rudd

       

X99-1755 under the ice

X99-1756 under the ice

X99-1757 under the ice

X99-1758 under the ice

 X99-1743

X99-1744

X99-1745

X99-1746

X99-1747

X99-1748

 X99-1749

X99-1750

X99-1737

X99-1736

 X99-1735

X99-1734

X99-1733

X99-1732

 X99-1731

X99-1729

X99-1728

 X99-1727

X99-1730

X99-1725

X99-1724

X99-1723

X99-1722

X99-1721

X99-1726

X99-1720

X99-1719

 X99-1718

       

J09-036 Water Stick Insect

  X99-1489

X99-1680

  X99-1559

X99-1455

X99-1454

X99-1453

X99-1199 Nymphaea alba

X99-1149

X99-752

X99-1560

X99-1201

X99-765

X99-764

X99-763

  X99-762

V02-131 Mute swan

F20-48 Common carp

F37-40 Tench

F37-31 Tench

F37-49 Tench

F37-34 Tench

  U101-107 Tench

F37-106 Tench

  F22-57 Red-eye rudd

F22-60 Red-eye rudd

X99-754

F22-55 Red-eye rudd

F22-62 Red-eye rudd

F20-50 Common carp

F37-98 Tench

  X99-1490
       

Landscapes : Düdinger Möser
       

  X115-006

X115-007

X115-008

  X115-009

  X115-010

  X115-011

X115-012

X115-013

       

  XU-108

  XU-024

XU-025

XU-028


XU-035


  XU-026 (6 x 9 cm, no scan)


XU-032 (6 x 9 cm, no scan)


XU-036 (6 x 9 cm, no scan)


XU-029 (6 x 9 cm, no scan)


XU-037 (6 x 9 cm, no scan)


X115-01


X115-03


Underwater Photography : Étang de la Gruère
       

U04-1352

  U04-1353

U04-1354

U04-1355

  U04-141

U04-140

U04-139

U04-138

  U04-137

U04-136

U04-135

  U04-133

U04-130

U04-129

  U04-127

U04-124

  U04-147

U04-148

U04-149

  U04-150

       

  U04-151

U04-153

U04-154

U04-156

  U04-157

U04-142

  U04-144

U04-145

Landscapes and Aerials : Étang de la Gruère
       

U04-568

  U04-567

U04-566

  U04-565

  U04-553

U04-554

U04-555

U04-556

  U04-557

U04-558

U04-559

U04-560
       

Website Michel Roggo Copyrights of all images, movies and other contents 2022 ©  Michel Roggo The Freshwater Project Website