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The Conversation
Environment
Paul Humphries, Associate professor in ecology, Charles Sturt University

Hungry gold miners created Victoria's Murray cod fisheries – and we're still dealing with the consequences

In this edited book extract, Paul Humphries describes how a proposal to feed hungry miners on Victoria’s goldfields led to a Murray cod fishery – and the collapse of cod populations, the effects of which are still with us today.

Within months of the discovery of gold in 1851 in the previously sleepy little hamlets of Ballarat, Castlemaine and Bendigo, the Victorian goldfields were out-performing those in California. By 1852, ships hailing from Melbourne were sailing up the River Thames, carrying up to 10 tonnes of gold to London.

Convicts, previously reluctant to be sent out to the colony, now begged for transportation. Immigrants from England, Europe, The United States and China arrived in Melbourne in their hundreds each day. Along with the diggers came those that supplied their wants and needs: store keepers, butchers, bakers, grocers, barbers, printers and other tradespeople. Gold, population and trade boomed.

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