Behavioral responses of false kelpfish (Sebasticus marmoratus) to acoustic stimulation
| Autor: | Ran Zhang, Xiaomei Xu, Xinhai Zhang, Lu Gu, Shenqin Huang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Physics Startle response medicine.diagnostic_test biology 010604 marine biology & hydrobiology Acoustics Stimulation Stimulus (physiology) biology.organism_classification 010603 evolutionary biology 01 natural sciences medicine.anatomical_structure Narrowband Kelpfish medicine Auditory system Sound pressure Frequency modulation |
| Zdroj: | ICSPCC |
| DOI: | 10.1109/icspcc.2017.8242537 |
| Popis: | Effects of anthropogenic noise on marine fish have drawn increasing attention. In order to explore the effects of underwater noise on false kelpfish (Sebasticus marmoratus), the acoustic stimulus experiments were carried in a tank with three types of noise sources and analyzed with behavioral method. The results showed that when peak and effective sound pressure levels (SPLpeak, SPLrms) were above 164 and 145 dB re 1 pPa, several false kelpfish showed subtle behavioral responses to Linear Frequency Modulated (LFM) signal (100–1000 Hz, duration 1s). Fishes showed startle response to stronger LFM signal, i.e. bending their bodies to one side rapidly into a C-shape. There were no obvious behavioral responses towards singlefrequency sine signals (range from 100 to 1000 Hz, with a step of 100 Hz) between 161–187 dB SPLpeak and windfarm operational noise with 140 dB SPLrms. The false kelpfish might be sensitive to signals with rapid frequency variation. They showed more intense behavioral response to broadband signals than narrowband signals when at the same SPL above the behavioral response threshold. Our results suggested that moderate windfarm operational noise may not have short-term effect on the false kelpfish's behaviors. |
| Databáze: | OpenAIRE |
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