While military sonar systems and seismic airguns used in oil / gas exploration and scientific research have received considerable attention in the overall issue of noise impacts on marine life, less intense but far more widespread and chronically - present noise sources, particularly large commercial ships, have only recently begun to be specifically considered. (sea-inc.net)
The seismic airguns used to look for undersea oil don't just disrupt marine mammals, their shock waves also kill and disperse the plankton population (newscientist.com)
The RWS Chamber Lube is our favorite pick for airgun lube! (geekwrapped.com)