The Short-finned eel, scientifically known as Anguilla australis, goes on one of natures most incredible migrations. These eels journey over thousands of kilometers to the ocean, where they reproduce and start their life cycle all over again. Despite all the interest in this extraordinary adventure, the Short-finned eel is still one of Australia’s most underappreciated creatures.
The migratory life of the Short-finned or Japanese eel is nothing short of an amazing, dangerous pilgrimage. After their long migration to the continent, glass eels leave the ocean and enter into estuaries and rivers. Then they need to find their own way back to the Australian mainland. It’s a remarkable journey that demands incredible tenacity because they’re met with so many hurdles on the path. The eels make their way upstream through rivers and estuaries, sometimes fending off fierce currents and predators like fish and birds.
It’s a tough life for these little guys. Research shows that just one out of 10,000 hatchlings ever finds its way back to its home territories. This staggering statistic only emphasizes how vulnerable this species is, and the most alarming part is that because of their long-term survival. Breeding issues, like habitat loss and changing climates, place added stress on their already vulnerable populations.
Though its remarkable migration and important ecological role are worthy of note, the Short-finned eel has yet to be enshrined. Conservationists say that this freshwater species is an essential link in keeping aquatic ecosystems in Australia healthy and balanced. As apex predators, their presence ensures that populations of other species remain in check, improving biodiversity as a whole.
The Short-finned eel’s life cycle is not only fascinating, but it is a key component of protecting marine ecosystems. As adults these eels do quite well in freshwater for many years. Finally, they hatch and begin their epic journey back to the ocean. Their elaborate mating ritual takes place at depths of 60 feet and below, where they release their eggs and keep their line alive.
A campaign is at work in increasing visibility for the Short-finned eel’s plight and greater Endangered Species Act protection. Wildlife advocates are fighting for stronger protections for their habitats and more sustainable agricultural practices to help move them off the endangered species list. Through education efforts, advocates hope to teach the public more about this incredible species and its place in the ecosystem to protect it for generations to come.
