By Alice Roberts
There has been a sharp drop in the number of green turtles making the journey to nest on Heron Island off the central Queensland coast.
During a good season about 200 turtles a night lay their eggs at Heron Island, but this year that is down to about three.
Seabed grasses were damaged during flooding last year, depriving green turtles of food.
However, Heron Island Resort activities manager Jason Killen says it has not deterred the endangered loggerheads.
"The ratio is usually around 98 per cent green turtles and about 2 per cent loggerhead turtles," he said.
"[It is] interesting this year we're getting more loggerhead turtles because they feed on different things.
"After say an El Nino event the record here is 2,200 turtles and in the peak of that we were getting about 220 turtles a night."
Mr Killen says they will return in force once the seabed grasses recover.