Hilbertz et al. [54 Method of enhancing the growth of aquatic organisms, and structures created thereby us005543034A buy Patent Number: 5,543,034

204/DIG. 6

205/742; 204/DIG. 6

which comprises:

1. 
   installing a cathode and an anode in the electrolyte,
   
2. 
   applying a steady, pulsed or intermittent direct electric current across the cathode and the anode to eifect electrolysis,
   
3. 
   providing accreted mineral material on the cathode,
   
4. 
   recruiting aquatic organisms on or in the vicinity of the cathode, and
   
5. 
   creating by electrolysis conditions of higher alkalinity in the electrolyte in the vicinity of the cathode than in the electrolyte remote from the cathode to cause growth of the aquatic organisms in the conditions in the vicin- ity of the cathode, the placement of the anode being done in such a way as to minimize the effects of hydrochloric acid produced at the anode.
   

The method is particularly described with reference to the growth of organisms which deposit calcareous substances, such as corals, for the creation of artificial reefs or coastal defence structures. The invention is also useful in maricul- ture facilities, such as oyster-producing installations, where the shellfish or other grown organism is harvested.