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fish-ways to connect

Jungle perch stretch their fins in Brendale

diana · May 30, 2017 ·

Catchment Solutions and Moreton Bay Regional Council have completed a nature like rock ramp fish ladder at Leitch’s Crossing on the South Pine River which allows economically valuable juvenile fish to move freely upstream.

Catchments Solutions fisheries biologist, Matt Moore, said the native fish were really poor swimmers and could only swim fast in small bursts which meant road crossings, causeways, weirs and culverts were major barriers.

South Pine River and a rock ramp fishway.
South Pine River rock ramp fishway.

The velocity through the pipes, and the drop of downstream at Leitch’s Crossing, prevented critical life-cycle dependant migrations upstream for decades which impacted on native fish populations.

“We’ve opened up breeding habitat for Jungle Perch and Australian Bass, both of which are popular with recreational fishers,” said Matt.

Councillor Mike Charlton said the new fishway, located on the border between Brendale and Albany Creek, was similar to a set of stairs and allowed fish to easily make their way up and down the peak of an existing culvert one step at a time.

Fish ladder at South Pine River.
South Pine River rock ramp fishway, facing upstream.

More than 400 tonne of rocks, weighing as much as 3.5 tonne each were strategically placed with a large excavator to form a series of pools interspersed with small 70 mm drops.

Catchment Solutions has completed three out of the planned five fish-ways to re-connect fish habitats
fragmented by barriers in South-east Queensland. These five were identified as the most important to need remediation out of 13,797 barriers in the region.

South Pine River rock ramp fishway.
South Pine River rock ramp Fishway, Leitchs Crossing in Brendale, Qld

The South Pine River fish ladder is a joint project between Moreton Bay Regional Council and Reef Catchments with co-funding from the Australian Government National Landcare Programme (Target Area Grant). The design and construction of the Fish Ladder on Leitchs Crossing in Brendale was overseen by environmental consultants Catchment Solutions.

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