Project

Restoration of marine boulder reefs -- addressing the single large or several small (SLOSS) debate in relation to marine habitat restoration

Publisher

Supervisor

Location

Greater Copenhagen area

Aim:

The aim is to identify types of restored boulder reefs that maximize fish abundance and diversity. Specifically, the project will compare fish abundance and diversity in two types of restored boulder reefs: 1) a single large boulder reef, and 2) several small boulder reefs. Equivalent amounts of boulders are used for the two reef designs. It is hypothesized that several small boulder reefs host the highest fish abundance and diversity per volume of boulders. A project film is available here.

 

Background:

Human impact on marine habitats is a global problem, particularly in Northwestern Europe, East Asia, North America; and the Mediterranean and East Caribbean Seas. Approximately 85% of the European coastlines are degraded. In Denmark, large quantities of boulders have been extracted from coastal zones to provide building material for constructions, including piers and jetties. The extraction of marine boulders ceased in 2010; and boulder reefs are now being restored to meet the requirements of the EU Habitat Directive. However, boulder reefs can be constructed in many different ways, and the optimal construction type for fish abundance and diversity is not known.   


Content:

Restored boulder reefs will be examined using underwater cameras, and then fish abundance and fish diversity on each reef will be quantified using video analyses. Fieldwork has been carried out during the spring and summer of 2016 and 2018, and sites will be revisited in 2020 and 2022, in which students have the opportunity to participate. The study provides data to identify the optimal type of restored boulder reef. These data will provide guidelines for future restoration projects aimed at improving fish abundance and fish diversity. Further information is available here and here.

 

Duration:

Data collection will take 2-4 months over the summer, followed by 2-4 months of video analyses. Statistics and writing up will take another 1-4 months.  

 

Contact:

Jon C. Svendsen: 

Email: jos@aqua.dtu.dk

Phone: 00 45 93 51 16 63

Twitter: @JonCSvendsen

In collaboration with

http://alsstenrev.dk/

Requirements

Interest in marine biology, video analyses and statistical analyses of data

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Contact

Company / Organization

DTU Aqua

Name

Jon Christian Svendsen

Position

Seniorforsker

Mail

jos@aqua.dtu.dk

Supervisor info

Bachelor in General Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

BSc in Civil Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

BSc in Environmental Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

BSc in Quantitative biology and disease modelling

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Miljø

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering,

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering,

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering,

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Bachelor of Engineering, Civil and Structural Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

MSc Eng in Quantitative Biology and Disease Modelling

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

MSc in Aquatic Science and Technology

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

MSc in Civil Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

MSc in Environmental Engineering

Supervisor

Jon Christian Svendsen

Co-supervisors

Henrik Baktoft, Tim Wilms, Josianne Gatt Støttrup

ECTS credits

10 - 60

Type

Final project, Other, BSc project, MSc thesis, Special course

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

Find us here

Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

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