It’s the external volunteer’s last week with the program. For weeks I’d been heading out with each one to take their portraits and have a chat for an interview series. I’d finished the series so could choose any beach to tag along on, of course I picked Five Mile. With its huge rocky platform and stretch of dunes there was always something to see here. Today I wasn’t disappointed. There were three turtles along the first half of this 800-metre stretch. As soon as I stepped out of the car park, I saw tracks in the sand moving parallel to the rock platform. Instead of heading out to sea a turtle had gone for a 100 metre walk along the beach. She was still doing circles in the sand as I approached. She was quite large and clearly exhausted from her wandering. I squatted down and remained still. She took so long to crawl five metres onto the rock platform I wasn’t sure if she had the energy to make it. She found a pool of water deep enough to fit her head in and drooped it into the water. Falling asleep instantly in this uncomfortable looking position. Turtles often rest with their heads underwater. The first time I saw this I was worried, would the turtle drown?! Then I felt silly, of course not, these animals are used to sleeping underwater. It probably helps them cool down and feels familiar when they’re out of their natural environment. Green turtles can hold their breath for around 6 hours when resting.
The tide was coming in so I left her to snooze and continued along the beach. Soon I arrived at my favourite spot, a rockpool about knee deep and five metres squared. There were two shell shaped rocks submerged in the rockpool. One of the rocks started swimming around and on getting closer the other was clearly turtle shell patterned where it was wet at the edges. This turtle was motionless and clearly asleep. She didn’t move the entire time I was there, instead she waited for the tide to come in and swam off once fully submerged. A lot of turtles use this tactic to avoid dragging themselves over the rocks, instead calmly resting in any water they can find. I’m not sure how they know the tide is coming in. I watched the water move in over the rocks near my feet, almost as fast as I could walk. The other turtle was swimming around, looking to be enjoying itself. She moved into a deeper part of the platform closer to the ocean and kept swimming around. Eventually she slipped over the edge and was gone. It’s always nice to watch them return to where they belong.
This week we also had a behind the scenes tour of the local aquarium. One of the aquarists was training to become a local volunteer for the Ningaloo Turtle Program and had offered to show us around. The aquarium was very new and only had one main display tank. It stretched from the floor to the top of the second storey and was about three metres in diameter. It contained live corals, over 80 reef fish species and a painted crayfish. Most of the fish and corals are collected from the west coast by collectors with permits. The fish were constantly moving. Even clownfish and humbugs which in the wild stick around an anemone were swimming freely because they realised they had no predators. With so many species it was a flurry of colour and shapes. Some were hard to spot, like the yellow boxfish, and the tiny toby. Others, like rabbit and butterflyfish moved near the glass, picking algae off the window sills. The aquarist clearly loved his charges and told us stories about the fish. Like the cheeky wrasse that moves rocks and small corals when he adds them to the tank. And the crayfish stealing tools when he dives in the tank to clean the glass, dragging them under the rocky outcrop.
We went out the back to see the quarantine tank. This is necessary as fish are collected from the wild and are kept separate for observation or treatment before release in the main tank. There were two wobbegongs the size of my forearm and a blue spot stingray out the back, waiting for their lagoon style tank to be built. The ray kept surfacing, swimming straight up out of the water. Having people standing over the tank is what happens during its feeding time, shame I didn’t have a snack for him. We saw the coral tank where new fragments were being separated. For every piece of coral collected for the display tank a fragment is kept to produce more. There are fish in here which don’t get on with others or are good at eating algae or copepods, keeping the coral healthy. They were also trying to grow fragments suspended from fishing wire. This allows the water to move around them and they grow better from each side, instead of sitting on a plastic plug. They had already grown over the fishing line so you couldn’t see how they’d been attached, this is based on overseas experiments and are doing really well. It was great to have a peek behind the scenes but hard to justify the expense of this controversial new aquarium. Why look at these fish in one small tank when you were within driving distance of Ningaloo, a world heritage listed coral reef?!
Another day at Five Mile began similar to the last with three turtles resting on the rock platform. When I was photographing one, I heard two seagulls squawking behind me. One had something in its beak the other was trying to get. Taking a photo and zooming in on the screen I could see it was a turtle hatchling. It was flopped unnaturally upside down with its flippers dangling limply. It was dead, this was my first glimpse of a hatchling at Ningaloo. I followed the volunteer I was with up into the dunes. She showed me a nest that hatchlings had emerged from the day before. It was just a small funnel-like depression in the sand, no larger than a saucer in diameter. It was hard to imagine over a hundred baby turtles had come through this tiny area. Around the depression hatchling tracks spilled in every direction. Seagull footprints covered the sand, not many hatchlings could have escaped. There were three dead hatchlings near the nest depression. They were all smaller than my palm in length and looked so fragile. Little broken bodies scattered on the sand. The white edge on their flippers helped me identify them as green turtle hatchlings. They were starting to smell, I wonder if we’d just missed them hatching. Burying them I flipped one over and saw a hole in the top of its head. Probably where a seagull had pecked it. These birds are so wasteful not eating every hatchling they kill. It’s no wonder all the volunteers dislike seagulls so much, even though they are a natural predator.
We began the volunteer’s farewell by heading to town beach for nibbles, drinks and a swim. It looked like it was about to storm, we heard thunder on the horizon. Back on shore we formed teams and did another trivia session before heading to a local brewery for pizza and farewells. Five weeks had passed by so fast, I only had one week left here myself!