The Environment Bay of Plenty Chair in Lakes Management and Restoration

Environment Bay of Plenty (EBOP) has made a major commitment to restoration of water quality of the Rotorua Lakes through establishment of the Chair in Lakes Management and Restoration, based in Biological Sciences at the University of Waikato. A variety of student and collaborative projects is funded through the EBOP initiative. The overall aim of projects supported by EBOP is to provide the scientific support for informed management decisions by EBOP, in consultation with Iwi and the community.

For further information: David Hamilton (Chair), Paul Dell (EBOP)

Bloom-forming algae, particularly cyanobacteria

This research includes several different aspects of the dynamics of cyanobacteria and other bloom-forming algae, including buoyancy/vertical migration, and N-fixation by heterocystous species. It also includes more general phytoplankton studies to examine how phytoplankton species composition and biomass are influenced by physico-chemical conditions in lakes, as well as conceptual and numerical modeling of phytoplankton dynamics.

Students Papers Models

Modeling of water quality in lakes and reservoirs

A suite of models, available through the Centre for Water Research at the University of Western Australia has been developed and applied to examine specific processes and basin scale dynamics in lakes. Processes of specific interest for modeling include bloom-forming algae, nitrogen dynamics (specifically nitrogen fixation and denitrification), benthic-pelagic coupling and the trophic cascade. DYRESM-CAEDYM (coupled hydrodynamic-ecological model) is used for vertical resolution of temperature and ecological variables while ELCOM-CAEDYM is used for 3-D modelling of lakes and estuaries.

Students Papers Models

Sediment-water interactions and sediment resuspension in lakes

Benthic-pelagic coupling is integral to water column composition and function. In shallow lakes sediment resuspension can be highly important in altering dynamics of nutrients and benthic-pelagic production. In deeper lakes, changes in redox status with density stratification and oxygen depletion may drive changes in water column nutrients and metals (e.f. Fe, Mn). The focus of this research is the coupling of process studies (e.g. denitrification, benthic chamber deployments) with models of lake-wide concentrations.

Students Papers Models

Ice cover in lakes

This research focuses on the development of an ice-cover version of the hydrodynamic model DYRESM, and its application in examining climate change impacts on ice cover and thermal stratification in the lakes in North America. This is a collaborative project with the Center for Limnology, University of Wisconsin, who are using 7 lakes in Wisconson to provide indicators of long-term changes in climate. Extensions of this reserarch to examine climate change impacts on the Rotorua lakes are planned.

Students Papers Models

 

The Environment Bay of Plenty Chair in Lakes Management and Restoration

Environment Bay of Plenty (EBOP) has made a major commitment to restoration of water quality of the Rotorua Lakes through establishment of the Chair in Lakes Management and Restoration, based in Biological Sciences at the University of Waikato. A variety of student and collaborative projects is funded through the EBOP initiative. The overall aim of projects supported by EBOP is to provide the scientific support for informed management decisions by EBOP, in consultation with Iwi and the community.

For further information: David Hamilton (Chair), Paul Dell (EBOP)

Bloom-forming algae, particularly cyanobacteria

This research includes several different aspects of the dynamics of cyanobacteria and other bloom-forming algae, including buoyancy/vertical migration, and N-fixation by heterocystous species. It also includes more general phytoplankton studies to examine how phytoplankton species composition and biomass are influenced by physico-chemical conditions in lakes, as well as conceptual and numerical modeling of phytoplankton dynamics.

Students Papers Models

Modeling of water quality in lakes and reservoirs

A suite of models, available through the Centre for Water Research at the University of Western Australia has been developed and applied to examine specific processes and basin scale dynamics in lakes. Processes of specific interest for modeling include bloom-forming algae, nitrogen dynamics (specifically nitrogen fixation and denitrification), benthic-pelagic coupling and the trophic cascade. DYRESM-CAEDYM (coupled hydrodynamic-ecological model) is used for vertical resolution of temperature and ecological variables while ELCOM-CAEDYM is used for 3-D modelling of lakes and estuaries.

Students Papers Models

Sediment-water interactions and sediment resuspension in lakes

Benthic-pelagic coupling is integral to water column composition and function. In shallow lakes sediment resuspension can be highly important in altering dynamics of nutrients and benthic-pelagic production. In deeper lakes, changes in redox status with density stratification and oxygen depletion may drive changes in water column nutrients and metals (e.f. Fe, Mn). The focus of this research is the coupling of process studies (e.g. denitrification, benthic chamber deployments) with models of lake-wide concentrations.

Students Papers Models

Ice cover in lakes

This research focuses on the development of an ice-cover version of the hydrodynamic model DYRESM, and its application in examining climate change impacts on ice cover and thermal stratification in the lakes in North America. This is a collaborative project with the Center for Limnology, University of Wisconsin, who are using 7 lakes in Wisconson to provide indicators of long-term changes in climate. Extensions of this reserarch to examine climate change impacts on the Rotorua lakes are planned.

Students Papers Models