Affiliation:
1. Biology Department, Woods Hole Oceanographic Institution , Woods Hole, Massachusetts 02543, USA
Abstract
There is increasing concern that anthropogenic sounds have a significant impact on marine animals, but there remains insufficient data on sound sensitivities for most invertebrates, despite their ecological and economic importance. We quantified auditory thresholds (in particle acceleration levels) and bandwidth of the giant scallop (Placopecten magellanicus) and subsequently sought to discern sensitivity among two different life stages: juveniles (1 yr olds) and subadults (3 yr olds). We also leveraged a novel valvometry technique to quantify the amplitude of scallop valve gape reductions when exposed to different sound amplitudes and frequencies. Behavioral responses were obtained for lower frequencies below 500 Hz, with best sensitivity at 100 Hz. There were significant differences between the auditory thresholds of juveniles and subadults, with juveniles being more sensitive, suggesting ontogenetic differences in hearing sensitivity. Scallops showed intensity and frequency dependent responses to sounds, with higher valve closures to lower frequencies and higher sound levels. To our knowledge, these are the first data highlighting life stage, intensity, and frequency responses to sound in a marine benthic invertebrate. These results demonstrate clear sound sensitivity and underscore that the potential impacts of anthropogenic sound in valuable ecological resources, such as scallops, may be dependent on sound characteristics.
Funder
Bureau of Ocean Energy Management
Publisher
Acoustical Society of America (ASA)
Subject
Acoustics and Ultrasonics,Arts and Humanities (miscellaneous)
Reference37 articles.
1. Empirical refinements applicable to the recording of fish sounds in small tanks;J. Acoust. Soc. Am.,2002
2. Hydro sound measurements during the installation of large diameter offshore piles using combinations of independent noise mitigation systems,2014
3. The sense of hearing in the Pacific oyster, Magallana gigas;PLoS One,2017
4. Valve-gaping behavior of raft-cultivated mussels in the Ría de Arousa, Spain;Aquac. Rep.,2018
5. The underwater sound field from impact pile driving and its potential effects on marine life;Acoust. Today,2015
Cited by
3 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献