Life on the rocks: biodiversity assessments on breakwaters

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The Netherlands have been building dikes to protect their country from flooding events for a long time. Although the province of Zeeland is currently well protected with dikes along its estuaries, these regularly need to be replaced or reinforced. Currently, dikes and foreshores are primarily designed from a civil engineering perspective. The main focus is on flood protection and water management. The Building for Nature approach aims at innovating the design of coastal protection structures in order to increase their nature values. Dikes with this type of design are called rich dikes, or rich revetments. These revetments can be of more interest to other users such as divers, fishermen or aquaculture.
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The Netherlands have been building dikes to protect their country from flooding events for a long time. Although the province of Zeeland is currently well protected with dikes along its estuaries, these regularly need to be replaced or reinforced. Currently, dikes and breakwaters are primarily designed from a civil engineering perspective. The main focus is on flood protection and water management. The Building for Nature approach aims at innovating the design of coastal protection structures in order to increase their nature values. Dikes with this type of design are called rich dikes, or rich revetments. These revetments can be of more interest to other users such as divers, fishermen or aquaculture.
   
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In Spring 2015 a dike section of 100m along the Eastern Scheldt at Sint-Annaland (Tholen, Zeeland) was used as a test site for new revetment designs. Here, concrete blocks with surfaces with different sizes of pits (holes) were compared with other, more traditional revetment types. To study the impact of winter storms, every early spring the seaweeds are removed from part of each of the revetment types studied. In this project you will monitor the changes in biodiversity and you will assess which block type performs better and why. Based on your analysis you provide advice on the design of new revetments.
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In 2016 as part of the Buitendijks-project funded by the province of Zeeland several new breakwaters were placed in the Western Scheldt in order to protect the shore from erosion and increase the area of intertidal mudflats. At these breakwaters, the added value to nature of several innovative types of building materials will be tested at an experimental scale. In this project you will help in de development and placement of the experimental set-up and monitor the initial development of seaweeds and sessile invertebrates.
   
 
'''Research type:''' Field work and desk analysis
  
'''Research type:''' Field work and desk analysis
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'''Prerequisite:''' Interest in aquatic ecology 
  
'''Prerequisite:''' Interest in aquatic ecology 
   
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'''Partners:''' Rijkswaterstaat
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'''Partners:''' NIOZ, Deltares
   
 
'''Client:''' Tim van Oijen
  
'''Client:''' Tim van Oijen
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|Supercontext=Building with Nature
  
|Supercontext=Building with Nature
 
|Project type=Standaard
  
|Project type=Standaard
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|Name=Building for nature: biodiversity on dikes
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|Name=Life on the rocks: biodiversity assessments on breakwaters
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|Start date=August 2017
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|Start date=2018/09/01
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|End date=February 2018
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|End date=2019/02/01
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|Summary=Monitoring the ecological development on revetments that were designed to support nature
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|Summary=Monitoring the ecological development on breakwaters in the Western Scheldt
   
 
Research type: Field work and desk analysis
  
Research type: Field work and desk analysis
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Prerequisite: Interest in aquatic ecology
  
Prerequisite: Interest in aquatic ecology
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Huidige versie van 23 mei 2018 om 14:14

The Netherlands have been building dikes to protect their country from flooding events for a long time. Although the province of Zeeland is currently well protected with dikes along its estuaries, these regularly need to be replaced or reinforced. Currently, dikes and breakwaters are primarily designed from a civil engineering perspective. The main focus is on flood protection and water management. The Building for Nature approach aims at innovating the design of coastal protection structures in order to increase their nature values. Dikes with this type of design are called rich dikes, or rich revetments. These revetments can be of more interest to other users such as divers, fishermen or aquaculture.

In 2016 as part of the Buitendijks-project funded by the province of Zeeland several new breakwaters were placed in the Western Scheldt in order to protect the shore from erosion and increase the area of intertidal mudflats. At these breakwaters, the added value to nature of several innovative types of building materials will be tested at an experimental scale. In this project you will help in de development and placement of the experimental set-up and monitor the initial development of seaweeds and sessile invertebrates.

Research type: Field work and desk analysis

Research level: Minor or Internship

Prerequisite: Interest in aquatic ecology 

Partners: NIOZ, Deltares

Client: Tim van Oijen















Start date: september 1, 2018
End date: februari 1, 2019