Author: Lachlan Farrington

Adopting a ‘hard’ solution to keep invasive fish out and our wetlands full at Mount Burr Swamp

Posted at 29 May 2026 at 10:25h in News, Mount Burr Swamp Habitat Restoration Reserve, Wetland Restoration by Lachlan Farrington

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At NGT we love 'soft' engineering solutions. Our overarching philosophy is to work with nature to achieve rehabilitation solutions that integrate with the environment, mimic natural conditions, and make the most of the existing materials, processes and landforms. For this reason, we really love sandbags,...

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Remembering Sam Greiner

Posted at 26 Feb 2026 at 12:23h in News by Lachlan Farrington

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It is with great sadness that we recently heard of the passing of Samantha Greiner. Sam was a well known and respected member of the field naturalist community here in south west Victoria. Those who knew her speak of her bright personality, sense of humour...

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Look who’s just moved in at Mount Burr Swamp!

Posted at 26 Feb 2026 at 12:16h in News, Fish conservation, Mount Burr Swamp Habitat Restoration Reserve, Yarra Pygmy Perch Recovery by Lachlan Farrington

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In some exciting news, the nationally threatened Yarra Pygmy Perch has found its way into the Mt Burr Swamp Restoration Reserve. This has been several years in the making and was given a final push thanks to funding from the Wettenhall Environment Trust. It's almost 20...

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Spotted Galaxias — A fascinating freshwater fish

Posted at 28 Nov 2025 at 14:02h in News, Fish, Species of the month by Lachlan Farrington

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The Galaxiids are a defining feature of Australia's freshwater fish fauna, particularly across the southern states. With almost 40 different species (and still counting), ranging from the "very" common jollytail (Galaxias maculatus) through to the extremely rare Yalmy galaxias. They range across coastal rivers, all...

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Wannon River Insights Part 7 — After the fire

Posted at 27 Aug 2025 at 17:27h in News, Wannon River by Lachlan Farrington

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It has taken more than six months to get there, but I have now had a decent look at the upper Wannon River following the summer bushfires. My greatest fear through this wait was that any significant rain would mobilise soil and ash, decimating the...

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Evidence of a changing climate through the lens of a crater lake — The History and Future of Lake Cartcarrong

Posted at 29 May 2025 at 11:36h in News by Lachlan Farrington

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Lake Cartcarrong, located near Winslow in western Victoria, is a volcanic feature known as a 'maar'. A marr is a broad, low-relief volcanic crater formed by an explosive interaction between magma and groundwater. This lake is part of the Newer Volcanic Province (NVP), one of...

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Wannon River insights part 6: 2024 saw “average” winter rainfall in the upper catchment, but what happened to flows?

Posted at 27 Feb 2025 at 10:35h in News, Wannon River by Lachlan Farrington

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In the last newsletter, Mark presented a table comparing rainfall at Mt William (Duwul) to surrounding towns on the plains - Ararat and Hamilton. The Mt William weather station is the highest in southwest Victoria, at an elevation of 1150 m above sea level, and...

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The mystery of the floating islands near Colac (Vic)

Posted at 29 Nov 2024 at 20:56h in News by Lachlan Farrington

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Back in the early 1990s, I remember seeing a news story on some floating islands - which the locals were towing to the other side of a pond after the wind had blown them to one side. It was one of those quirky stories which...

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Underwater vegetation mapping in crystal clear Ewens Ponds (SA)

Posted at 29 Nov 2024 at 20:02h in News, Karst Springs by Lachlan Farrington

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This month we have been undertaking some vegetation surveys at Ewens Ponds in South Australia, in conjunction with National Parks and Wildlife South Australia. Ewens Ponds is an iconic diving location near Port Macdonnell, on the Limestone Coast. It is renowned for its crystal clear...

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Ecological identity and deep ecology

Posted at 25 Sep 2024 at 21:19h in News by Lachlan Farrington

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Most of us feel overwhelmed when we trawl through the news and I’m not surprised many people prefer to just switch off. Particularly for younger people, there is a growing epidemic of eco-grief. So what must it be like to be an ecologist and to...

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