Ecosystem Health Assessment Program (EHAP)

Established in 2009, the Ecosystem Health Assessment Program (EHAP) is a partnership approach to monitoring and reporting on the ecosystem health of the Tamar estuary.

Sea Star on rock
Sea star beneath the Tamar. Photo Credit David Maynard

Focus

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 kanamaluka/Tamar near George Town.

The estuary is divided into five functional zones. 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 marine waters of Bass Strait.

Value

The monthly monitoring data is collated and used to produce the Tamar Estuary Report Card, summarising the quality of the water in grades that relate to ecosystem health. Pressures and drivers of water quality change are identified for the 12-month reporting period.

Two Old Wives swimming
Old Wives (Enoplosus armatus). Photo Credit David Maynard
Hippocampus abdominalis_D Maynard.jpg
A seahorse (Hippocampus abdominalis) beneath the Tamar. Photo Credit David Maynard

Delivery

Water quality parameters sampled each month include: 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 four seasons.

Quick Q&A

Does the program accept data from other sources?

Data outside of the EHAP program is welcomed by TEER and may be stored in the TEER database for future use and access. Please contact us if you wish to contribute.

Is it possible to access the data for other purposes?

Data is available to businesses and students investigating conditions and scenarios associated with the kanamaluka/Tamar estuary. Please contact us to speak with a member of the NRM North TEER team if you would like to learn more.

Partners

NLP logo_colour
Tas Govt resized
IMAS_coloured_400x300
TasWater_coloured_400x300
EPA_coloured_400x300
hydro_coloured_400x300
George Town Council_coloured_400x300
MVC_logo_400x300
city of launceston_coloured_400x300
northernmidlands_coloured_400x300
westtamar_coloured_400x300
petuna_coloured_400x300
Bellbayaluminium_coloured_400x300
South32_coloured_400x300

Partners

NLP logo_colour
Tas Govt resized
IMAS_coloured_400x300
TasWater_coloured_400x300
EPA_coloured_400x300
hydro_coloured_400x300
George Town Council_coloured_400x300
MVC_logo_400x300
city of launceston_coloured_400x300
northernmidlands_coloured_400x300
westtamar_coloured_400x300
petuna_coloured_400x300
Bellbayaluminium_coloured_400x300
South32_coloured_400x300

Water Program & Projects

Water Program

Return to the Water Program.

TEER Program

Working together to protect, restore and enhance the Tamar Estuary and Esk Rivers systems from 'catchment to coast'.

Tamar Estuary River Health Action Plan (RHAP)

Catchment works to improve public health through reduced pathogen concentrations in Zone 1 of the kanamaluka/Tamar estuary.

Managing Stormwater in Northern Tasmania

Learn how we're improving stormwater quality management across the region.