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Duisburg Zoo
Rio Negro

Peter Rasbach, Rasbach Architekten (author)
Achim Winkler, Zoo Duisburg (author)
Hannelore Bauer, Monika Fiby (editors for ZooLex)

Published 16 May 2010

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UP LOCATION:

Zoo Duisburg AG
Mülheimer Straße 273
47057 Duisburg, Germany
Phone: 49 203 3055922
URL: http://www.zoo-duisburg.de


UP KEY WORDS

Amazon, aquarium, tropical


UP ANIMALS:

Family:Species:Common Name:Capacity:
Psittacidae Ara macao scarlet macaw 4
Ceratophryidae Ceratophrys ornata Bell's horned frog 10
Megalonychidae Choloepus didactylus two-toed sloth 4
Indiidae Inia geoffrensis Amazon river dolphin 4
Nephilidae Nephila clavipes golden silk orbweaver 10
Ramphastidae Ramphastos vitellinus channel-billed toucan 4
Callitrichidae Saguinus midas Midas tamarin family group
Myrmecophagidae Tamandua tetradactyla Southern tamandua 4


UP DESCRIPTION:

The Rio Negro exhibit shows the flooded forest habitat of a South American river system in a tropical hall. It is a new holding facility for the two Amazon river dolphins which have been kept at Zoo Duisburg since 1975. The facility and the life support system have been designed to be able to hold manatees (Trichechus manatus) in the future since the zoo decided not to acquire river dolphins any more.

Visitors move through a tropical hall, experiencing a dense riverine vegetation and animal species of the the Amazon region, such as sloth, tamarin, lesser anteater, toucan and macaw, besides the Amazon river dolphin. A wooden visitor hut offers a view into the tree tops.


 

UP SIZE:

Tropical hall: 32,50 x 28,50 = 926, 25 m², Height: 7,50-10,00 m Technical hall: 22,50 x 8,00 = 180 m², Height: 7,20-8,10 m Pool: 650 m³, 450m², Depth: 0,50-3,50 m

Space allocation in square meters:

Use:Indoors:Outdoors:Total Exhibit:
  accessibletotalaccessibletotal 
animals470470470
visitors107107107
others360532532
total9371,1001,100

 

UP COSTS:

€ 3,300,000 including 15% for design.


 

UP OPENING DATE:

15 September 2005
 

UP DESIGN:

Beginning: 2002

  • Technical planning: Cosanne Ingenieure , Dorsten
  • Structural planning: Helmert + Schumacher , Duisburg
  • Architecture/ Landscape planning: Rasbach Architects , Oberhausen

UP CONSTRUCTION:

Beginning: 2004

  • Acrylic glas: Aquacone® GmbH, Düsseldorf
  • Heating: Beck GmbH, Schermbeck
  • Ventilation: Berns Gebäudetechnik, Kleve
  • Filtration system: EAS Einhaus-Anlagenservice, Geeste
  • Tropical hall: Marsmann, Münster
  • Building construction: M. Schmidt, Duisburg

UP LOCAL CONDITIONS:

walter.gif This is a climatic diagram for the closest weather station.

 

UP PLANTS:

The design of the exhibit follows the example of a large river (Rio Negro) with flooded river banks in the Amazon region of South America .

The plant list specifies the Latin names of the plants used for this exhibit.


UP FEATURES DEDICATED TO ANIMALS:

The pool of the river dolphin has varying depths of water ranging from 0.5 to 3.5 meters and can be divided into three separate sections. The sweet water is treated biologically without chemicals. The life support system consists of mechanical filtration by skimming and gravel filters, a biological filter and UV desinfection. Water and air temperature are kept at 28° C, air humidity at more than 70%.


 

UP FEATURES DEDICATED TO KEEPERS:

The keepers have access to the dolphins along a shallow water zone. They can separate the pool into three parts maximum by inserting steel partitions in two places.


 

UP FEATURES DEDICATED TO VISITORS:

Two panoramic glass panels that reach to the ground allow good views of the animals. The acrylic glass panels are 12 and 6 meters wide and both 2.2 meter high. The water level at eye height of the zoo visitor offers a view of both, under and above water. A wooden visitor hut offers a view into the tree tops.


 

UP INTERPRETATION:

Several large colourful information panels show details about the river dolpins and their natural environment in South America. Several smaller colourful information panels offer details about the various animal species in the exhibit.


 

UP MANAGEMENT:

The maintenance of the building engineering is done through a contracting company with support from the zoo maintenance department. Access to the lights and tree canopies is via cherry-picker from the visitor area. The air conditioning outlets are hidden behind vegetation. The pool can be divided into three units for separating animals when necessary. Aviaries are available out of sight of visitors in order to separate individual tamarins or birds.


 

UP RESEARCH:


 

UP CONSERVATION:

A Cooperation with the Non-Government-Organization Yaqu Pacha in support of conservation projects in South America has been established.


 

UP LOCAL RESOURCES:

The planning and the design of the tropical hall were done by local companies, the only exception being the large glass panels, which were built by a specialist company in Japan.


Overview

Overview

© Zoo Duisburg, 2009


 

Site Plan

Site Plan

© Rasbach® Architekten, 2009


 

Dolphins

Dolphins

© Rasbach® Architekten, 2009


 

Overview of the hall

1. Overview of the hall

© Rasbach® Architekten, 2009


 

View under and above water

2. View under and above water

© Rasbach® Architekten, 2009


 

Dolphin enrichment

3. Dolphin enrichment

© Rasbach® Architekten, 2009


 

Live interpretation

4. Live interpretation

© Rasbach® Architekten, 2009


 

Access to the elevated hut

5. Access to the elevated hut

© Rasbach® Architekten, 2009


 

Elevated visitor hut

6. Elevated visitor hut

© Rasbach® Architekten, 2009


 

Channel-billed Toucan

7. Channel-billed Toucan

© Rasbach® Architekten, 2009


 

Air conditioning

8. Air conditioning

© Rasbach® Architekten, 2009


 

Seating area

9. Seating area

© Rasbach® Architekten, 2009


 

Close encounter

10. Close encounter

© Rasbach® Architekten, 2009


 

View from the dolphin side

11. View from the dolphin side

© Rasbach® Architekten, 2009


 

Smaller creatures in the Amazon region

12. Smaller creatures in the Amazon region

© Rasbach® Architekten, 2009


 

Tamanduas

13. Tamanduas

© Rasbach® Architekten, 2009


 

Tamandua close-up

14. Tamandua close-up

© Rasbach® Architekten, 2009


 

Animal identification signs

15. Animal identification signs

© Rasbach® Architekten, 2009


 

Pool separation

16. Pool separation

© Rasbach® Architekten, 2009


 

Shallow water zone

17. Shallow water zone

© Rasbach® Architekten, 2009


 

Jet nozzle

18. Jet nozzle

© Rasbach® Architekten, 2009


 

Hidden skimmer and screen

19. Hidden skimmer and screen

© Rasbach® Architekten, 2009


 

Upper floor technical room

20. Upper floor technical room

© Rasbach® Architekten, 2009


 

Lower floor technical room

21. Lower floor technical room

© Rasbach® Architekten, 2009


 

View from the top

22. View from the top

© Schmitt, 2009


 

Section of the building

23. Section of the building

© Rasbach® Architekten, 2009