A pre-selected fish grazing system to enhance harvesting of such pre-selected fish from a body of water. The fish grazing system includes at least one conductor unit attached to a body of a pre-selected fish for acting as a guide for other preselected fish present in such body of water. A control device...http://www.google.es/patents/US7317661?utm_source=gb-gplus-sharePatente US7317661 - Tuna grazing system
