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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/bg-2016-232
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-2016-232
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Submitted as: research article 14 Jun 2016

Submitted as: research article | 14 Jun 2016

Review status
This discussion paper is a preprint. It has been under review for the journal Biogeosciences (BG). The manuscript was not accepted for further review after discussion.

Using coupled hydrodynamic biogeochemical models to predict the effects of tidal turbine arrays on phytoplankton dynamics

Pia Schuchert1, Louise Kregting1, Daniel Pritchard2, Graham Savidge3, and Björn Elsäßer1 Pia Schuchert et al.
  • 1School of Planning, Architecture and Civil Engineering, Queens University Belfast, Belfast, BT9 5AG, UK
  • 2Department of Marine Science, University of Otago, PO Box 56, Dunedin 9054, New Zealand
  • 3School of Biology, Queens University Belfast, Belfast, BT9 7BL, UK

Abstract. Coupled 2-dimensional biogeochemical and hydrodynamic models offer the opportunity to predict potential effects of large scale tidal energy device (TED) arrays on the local and regional phytoplankton dynamics in coastal and inshore environments. In an idealised environment the effect of TEDs on phytoplankton dynamics accounted for up to 25 % in phytoplankton concentrations, most likely associated with an increased residence time in an inshore basin. However, natural variation such as the intensity of photosynthetically active radiation had a larger effect on phytoplankton dynamics.

Pia Schuchert et al.
Pia Schuchert et al.
Pia Schuchert et al.
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Short summary
There are environmental concerns associated with the installation of tidal energy devices (TEDs) along coastal environments. One concern relates to the likely change in the hydrodynamics where changes in hydrodynamics may potentially modify key predictors of phytoplankton derived primary production. Using a coupled 2-dimensional biogeochemical and hydrodynamic model, results showed that light had a larger effect on phytoplankton dynamics than an array of TEDs.
There are environmental concerns associated with the installation of tidal energy devices (TEDs)...
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