The Frankland Islands' unique ecosystem is a vibrant, diverse marine haven that supports rare species such as the striking blue Gigantea anemone. Kelly Evanson, Frankland Island Reef Cruises guide and dive instructor, explains how the distinct geology and flora of the islands contribute to their distinctiveness, particularly the interplay between the coral reefs, mangroves, and surrounding coastal environment, which is unlike most other ecosystems in the world.
"The blue anemone is extremely rare and just one of the unique marine animals found in the islands," Kelly shares. "The bright blue colour is what makes it stand out, especially against the vivid orange of the clownfish that often dart playfully around the waters. It's a mesmerising sight for visitors, as the contrast between the colours captures everyone's attention!"
Ocellaris Clownfish in the blue Gigantea anemone. Image: Frankland Islands Reef Cruises.
The reef around the Frankland Islands - part of the Great Barrier Reef - stands out due to its proximity to the coast and the Mulgrave River. Kelly explains that the mangroves along the river play a key role in maintaining the health of the reef, which is not something that people necessarily realise initially. "The mangrove trees are like guardians of the coast, filtering nutrients from the river and protecting the reef from land-based erosion. This makes our reef more resilient, especially during extreme conditions like floods. It's a natural system that works together in harmony to keep everything thriving."
Normanby Island from above. Image: Frankland Islands Reef Cruises.
Kelly notes that the dynamics of low tides and the reef contribute to the unique geology and flora found on the islands. "The reef here has adapted to withstand exposure during low tides," Kelly says. "The algae that grows on the flattened coral structures protects them, so even during prolonged low tide exposure, the coral remains strong. It's an incredibly resilient ecosystem that continues to amaze us."
Mulgrave River cruise on the way to the Frankland Islands. Image: Frankland Islands Reef Cruises.
A day out with the Frankland Islands Reef Cruises team provides guests with a deeper understanding of this fragile ecosystem, and hopefully inspires them to make informed choices about conservation efforts while fostering a sense of responsibility towards protecting our oceans.
Conservation in action: Participate in reef monitoring programs including Eye on the Reef and monitoring for the Crown of Thorns Starfish and Drupella Snail.
