Giant concrete structures placed on the seabed increased the number of fish species from 12 to more than 60 in just three years, transforming the area into a large underwater ecosystem. The development has highlighted the major ecological changes created by an artificial reef project in Australia.
Sea-news.az reports that the artificial reef project, launched in 2013 off the coast of Bunbury and Dunsborough in southwestern Western Australia, has brought about an unexpected and significant ecological transformation on the seabed.
The 60 specially designed concrete structures, each measuring 3 meters in length and weighing 10 tonnes, increased the number of fish species in the area from 12 to more than 60 in just three years, effectively turning the site into a major hub of marine life.
The giant blocks were designed with hollow interiors and multiple compartments. Rather than being placed randomly, they were strategically positioned to alter water movement and bring nutrient-rich water from the seabed toward the surface.
As a result of this engineering approach, plankton populations increased rapidly. The concrete structures, whose surfaces became covered with algae and sponges, began providing habitats for a wide range of marine life, from small baitfish to larger species.
Meanwhile, China, which has also attracted attention with similarly massive engineering projects, is continuing to push the boundaries. Off the coast of Qingdao, giant concrete blocks measuring approximately the height of a five-story building and weighing 3,500 tonnes are being placed on the seabed to protect clean-energy facilities.
