GOLDEN PERCH
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In a recently published research paper, Oficialdegui et al. (2025) showed that global aquaculture has increasingly relied on farming species outside their native ranges. Indeed, the study identified that the annual growth rate of non-native species produced in aquaculture now exceeds that of native species — and in 2022 alone, 32 million tonnes of non-native aquatic species were farmed, accounting for 37% of the world’s total aquaculture production.
Source: Aquaculture Magazine, 3rd Feb 2026 https://aquaculturemag.com/
Golden perch are ONLY found in Australia
There are three species of Golden Perch.
Macquaria ambigua ambigua from the Murray Darling River Basins
Macquaria ambigua oriens from the Fitzroy Dawson river basins
Macquaria Sp from the Lake Eyre Basin
Only the species from the Lake Eyre Basin has proven to be commercially suitable for aquaculture.
The other species failed to grow at commercial rates.
BELOW: Lake Eyre golden
BELOW: Murray Darling
BELOW: Fitzroy Dawson
The species from the Murray Darling River Basin is Macquaria ambigua ambigua.
Below the Murray River
The species from the Fitzroy Dawson river Basins is, Macquaria ambigua oriens.
Below the Dawson River
The species from the Lake Eyre Basin has not yet been described.
It is simply known as Macquaria sp.
Below the Thompson River. Part of the Lake Eyer Basin.
The map below shows the three river basins
BLUE: Murray/Darling Basin
RED: Lake Eyre Basin
YELLOW: Fitzroy/Dawson Basin
About Lake Eyre: Lake Eyre is a large, usually dry salt pan in the South Australian Outback, a dry and isolated environment.
Actually, it is Australia's largest salt lake.
It actually consists of two lakes, Lake Eyre North (8,430 km²) and Lake Eyre South (1,260 km²), connected by Goyder Channel which has a length of 15 km.
The huge salt lake is the terminal point of Australia's largest drainage system, the Lake Eyre basin.
The lake is also Australia's lowest point with 15.2 m below sea level in Belt Bay and Madigan Gulf.
The main tributaries into the lake are the rivers in south-west Queensland, the Diamantina and Georgina river systems and Cooper Creek.
Although these rivers flow quite frequently, they rarely reach Lake Eyre. 1990, Cooper Creek reached the lake for the first time in more than 20 years.
It took another 20 years until the Cooper made it to the lake again.
Western tributaries are the Neales and Macumba rivers.
In 1984 and 1989 the western tributaries filled Lake Eyre South within a few days.
Actually, it is Australia's largest salt lake.
It actually consists of two lakes, Lake Eyre North (8,430 km²) and Lake Eyre South (1,260 km²), connected by Goyder Channel which has a length of 15 km.
The huge salt lake is the terminal point of Australia's largest drainage system, the Lake Eyre basin.
The lake is also Australia's lowest point with 15.2 m below sea level in Belt Bay and Madigan Gulf.
The main tributaries into the lake are the rivers in south-west Queensland, the Diamantina and Georgina river systems and Cooper Creek.
Although these rivers flow quite frequently, they rarely reach Lake Eyre. 1990, Cooper Creek reached the lake for the first time in more than 20 years.
It took another 20 years until the Cooper made it to the lake again.
Western tributaries are the Neales and Macumba rivers.
In 1984 and 1989 the western tributaries filled Lake Eyre South within a few days.
Finally, the water overflowed to Lake Eyre North.
This is recorded as a very rare event, usually the northern lake fills first, and overflows the southern part.
This is recorded as a very rare event, usually the northern lake fills first, and overflows the southern part.
Prior to these events, it previously filled in 1950.
It is a fact that the lake had only filled to its full capacity three or four times within the last 150 years.
It only takes about two and a half years to dry up.
It is a fact that the lake had only filled to its full capacity three or four times within the last 150 years.
It only takes about two and a half years to dry up.
