Efforts in California to restore kelp beds have shown that even simple concrete rubble can provide the right foundation. The rubble piles have to low-relief. We found high peaks of rubble concentrate kelp eating fish and inhibit kelp growth. Kelp will start to form on rubble piles within a year. In 15 years, an entire community will likely flourish.
Marine officials say artificial reefs provide more habitat and increase fish populations.
They also allow that angling harvests are on the rise, effectively canceling the population growth. Building mitigating artificial reefs when real reefs are damaged doesn't address problems of pollution, nutrient runoff and over-exploitation of the oceans, he adds. Marine officials say artificial reefs provide more habitat and increase fish populations. They also allow that angling harvests are on the rise, effectively canceling the population growth. You can't increase fish numbers and creating a fishing spot.