Project Details

WSUD Category: Wetland/lake algae management

Development Type: Public Open Space
Function/Driver: Water quality
Government Area: City of Rockingham


Type of wetland

  • Constructed
  • Has 2 x Aerators

Description of the wetland management issue

Has outbreaks of algae when temperatures are higher and nutrient levels are increased.

Treatment trialled

  • Name of treatment: Barley Straw
  • Quantity used: 20 bales
  • Method of application: Barley straw is placed in a custom made shadecloth bag with a weight at the bottom and float on top, and placed in the lake.  They take up to 10 days to sink so that only the float is visible.
  • Is there any known scientific research supporting its effectiveness?☐ Yes  ☒No

Date(s) of treatment

The treatment commenced in June 2019.  The barley straw in the bags will be replaced every six months.

Outcome of treatment

Still early to draw conclusions but initial observations are very promising.


Contact Officer:  David Latham, Horticultural Supervisor

Email: [email protected]

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