Palos Verdes Reef restoration is giving scientists a rare look at how quickly damaged ocean habitat can respond. Four years ago, crews placed more than 70,000 tons of rock across the seafloor. The project covered more than 30 acres off Southern California's Palos Verdes Peninsula. The aim was to rebuild rocky habitat buried beneath sediment and damaged by decades of pollution.
Now, monitoring shows a striking change beneath those waters. Fish biomass across the restored reef complex increased by 166 percent from pre-construction levels. That amounts to nearly four metric tons of additional fish biomass. The result gives researchers a clearer picture of what happens when lost reef structure returns.
