A marine electromagnetic geophysical survey transducer cable includes a tow cable configured to couple to a tow vessel. A first electrode cable is coupled at a forward end to the tow cable. A second electrode cable is disposed aft of the first electrode cable and configured to indirectly couple to the tow vessel. At least one of the first and second electrode cables includes a cable core comprising a first core material having a first density selected to provide the transducer cable with a selected overall density, and at least one layer of electrically conductive strands disposed exterior to the cable core.