Freshwater Update 74, August 2017

Freshwater Update 74 brings you the latest information from our Freshwater & Estuaries Centre, with a focus on technology to trace the source of sediments in our waterways, measure bank erosion and shallow lake rehabilitation.

21 August 2017

Freshwater Update 74 brings you the latest information from our Freshwater & Estuaries Centre, with a focus on technology to trace the source of sediments in our waterways, measure bank erosion and shallow lake rehabilitation. Also see discussion in Water & Atmosphere 18, June 2017 on what is happening to New Zealand’s freshwater.

Figure 2.  Water quality monitoring on lake Milicich [Photo by Aleki Taumoepeau]  
Figure 2 - Snoopy attached to the back of a jet boat

Freshwater Update

In this issue

  • Link to source page

    Compound Specific Stable Isotope tracing of sediment sources - tools to manage a sticky problem in New Zealand’s freshwaters and estuaries

    Fine sediment is New Zealand’s most widespread water contaminant, degrading ecosystems, infilling dams and reservoirs and impairing recreational, cultural and aesthetic values in our rivers, estuaries and coastal seas.

  • Link to source page

    Using new laser technology to measure bank erosion

    Fine sediment is NZ’s most widespread contaminant, degrading ecosystems and impairing recreational, cultural and aesthetic values in our rivers, estuaries, and coastal seas.

  • Link to source page

    Shallow lake rehabilitation

    The naturally high organic content and slightly acidic nature of peat lakes gives them uniqueness and great ecological value but it also makes them challenging ecosystems to rehabilitate once degraded.

  • Link to source page

    Freshwater Restoration: Challenges and Opportunities

    A presentation by NIWA’s Chief Scientist Freshwater and Estuaries, Dr John Quinn, at the Biological Heritage National Science Challenge, Wellington, May 2017.