Virtual Experiments in Marine Bioacoustics: Whales, Fish, and Anthropogenic Sound
Abstract
This programmatic effort has three long-term goals. The first is to simulate bioacoustic interactions within and near individual fish. We developed a methodology that combines x-ray CT scans with tissue elasticity measurements and finite-element modeling software (WHACR). This technique has provided significant insights and discoveries regarding toothed whale bioacoustics (Cranford et al., 2008b; Cranford et al., 2008c), and now, within a fish s head. The second long-term goal is to improve and refine our ability to measure tissue elasticity in samples by building a portable device to measure physical properties from tissue samples. The third and final goal is to validated the finite element models and add more functionality to the WHACR software. The primary objective is to examine simulations of the otolith organs to elucidate their motion patterns in response to acoustic stimuli from different directions and frequencies. The secondary objective is to standardize and improve our ability to measure tissue properties; primarily Bulk Modulus and sound speed in tissue samples. The tertiary objective is to refine the vibroacoustic toolkit (WHACR) and validate these finite element models.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 30, 2011
- Accession Number
- ADA602641
Entities
People
- Anthony D. Hawkins
- Carl R. Schilt
- Petr Krysl
- Ted W. Cranford