TY - RPRT TI - Chemosterilization of male sea lampreys ( Petromyzon marinus ) does not affect sex pheromone release AU - Michael J. Siefkes AU - Roger A. Bergstedt AU - Michael B. Twohey AU - Weiming Li PY - 2003 DO - 10.1139/f02-169 UR - https://pubs.usgs.gov/publication/1000866 ID - 1000866 ER -