Underwater sound-emitting devices (maximum level of intensity equivalent to approximately 175 dB re 1 µPa @ 1m) attached to fishing gear, principally gillnets. [Under NOAA’s Harbor Porpoise Take Reduction Plan for the Gulf of Maine, the sound output intensity for pingers is stipulated as 10 (±2) kHz at 132 (±4) dB re 1 µPa @ […]
May 2014
Definition of 'Glow rope' | Consortium for Wildlife Bycatch Reduction
Rope consisting of polypropylene blended with a phosphor that glows a bright yellow-green underwater in wavelengths large cetaceans can see. It glows for 48 hours after activation at an intensity a human can see readily at 20 yards (18 m). The design is based on the premise that with increased visibility cetaceans and perhaps turtles […]