Dawson River Rainbow

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The Dawson River runs into the Fitzroy River. The Fitzroy Dawson River system is limited to Queensland. It drains a large portion of Central Queensland and empties into the sea at Rockhampton. This is right on the Tropic of Capricorn. Although this is in the tropics, the inland reaches, where our brood fish were collected, is very cold during winter. These fish are very robust and are able to tolerate very high temperatures and long periods of cooler temperatures. They regularly endure temperatures around 11C.

This fish has been grouped in as a Melanotaenia splendida splendida, but some scientists believe it probably is more related to a M. fluviatilis.