Impact on reef, wildlife major concern after Jasper

There's concern about the flow-on effects of floodwaters reaching the Great Barrier Reef ecosystem. (Dean Lewins/AAP PHOTOS)

The scale of ex-Tropical Cyclone Jasper and resulting flooding has conservationists anxious about the impact on local wildlife and the nearby Great Barrier Reef.

Immense amounts of rain that fell on the area can affect the salinity of waterways, create toxic run-off and displace fauna.