GDE mapping in the Merri and Hopkins catchments
Tender Overview
About this tender
Overview The Glenelg Hopkins Catchment Management Authority is seeking a contractor to undertake groundwater dependent ecosystem (GDE) mapping within the Merri and Hopkins catchments in southwest Victoria. Purpose This project aims to identify, map, and prioritise riverine groundwater dependent ecosystems (GDEs) that function as critical drought refugia for instream biota within the Lower Merri and Hopkins River catchments. These two systems have been chosen because they have been impacted by the ongoing drought while potentially also being supported by soaks, springs, and groundwater dominated creeks throughout this drought period. Scope The scope includes: Identifying, mapping, and prioritising riverine groundwater dependent ecosystems (GDEs) within the Merri and Hopkins catchments at a sub-catchment scale Using remotely sensed data, including aerial imagery and satellite-derived datasets, to identify GDEs across the two catchments Combining spatial analysis, expert ecological assessment, and targeted validation activities to improve understanding of groundwater-supported ecosystems during prolonged drought conditions
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