The Ecosystem Health Assessment Program (EHAP) was established in 2009. The EHAP, is a partnership approach to monitoring and reporting on the ecosystem health of the Tamar estuary.
The EHAP monitoring covers the entire length of the Tamar estuary and has 16 monthly ambient monitoring sites from Home Reach in Launceston, to Low Head at the mouth of the Tamar near George Town. The estuary is divided into 5 zones for reporting purposes. Zones 1 to 3 (Launceston to Rowella) are considered to be estuarine, with zone 1 receiving the freshwater from the Esk rivers. Zones 4 and 5 are marine and are strongly influenced by the ocean waters of the Bass Straight. Click here for a map of the estuary's 5 functional zones.
Each month the water quality parameters of: pH, electrical conductivity, turbidity, dissolved oxygen and water temperature are collected at each site through the water profile. The surface water is also tested for nutrients, metals, bacteria and chlorophyll-a. The data is used to produce report cards based on a 12-month period that includes the 4 seasons. The Tamar estuary report card is a summary of the 12 months of water quality data, and the key messages derived from this data. The key messages interpret the water quality results in-combination with weather patterns and other events experienced in the region, during the reporting period. Click here to download the latest Tamar estuary report card.
Data outside of the EHAP program is welcomed by TEER and may be stored in the TEER database for future use and access. Data is available to business’s and students investigating conditions and scenarios associated with the Tamar estuary.
EHAP monitoring partners: