TY - CONF
TI - Best available science? Are NOAA Fisheries marine mammal noise exposure guidelines up to date?
AU - Stocker, M
T2 - 177th Meeting of the Acoustical Society of America
AB - NOAA Fisheries employs a set of in-water noise exposure guidelines that establish regulatory thresholds for ocean actions that impact marine mammals. These are established based on two impact criteria: Level A – a physiological impact including “Permanent Threshold Shift” (PTS), and/or tissue damage, and/or mortality, and Level B – a behavioral impact or disruption. Recently the Level A exposure thresholds were reconciled to the frequency-dependent hearing sensitivities of five classes of marine mammals based on work done more than a decade ago (Southall et al. 2007). Since that time much more work has been published on behavioral impacts of various noise exposures, and consideration of more variables such as frequency-dependent noise propagation characteristics, cumulative, concurrent, and continuous exposures, and noise impacts on marine soundscapes have entered into the discussion – but have not been incorporated into the NOAA Fisheries guidelines.
DA - 2019/05//
PY - 2019
SP - 6
PB - Acoustical Society of America
UR - https://asa.scitation.org/doi/10.1121/2.0001003
LA - English
KW - Noise
KW - Marine Mammals
KW - Cetaceans
KW - Pinnipeds
ER -