<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The present study investigated the impacts of multiple thunderstorm-sound exposures on growth and respiratory parameters in Nile tilapia (<italic>Oreochromis niloticus</italic>) in order to evaluate the acoustic stress response. Thunderstorm-sound exposure for 3 hours triggered respiration speed with an alarm reflex and rapid elevation of opercula beat rate (OBR) and pectoral wing rate (PWR), which increased two-fold over the control with no sound treatment, and peaked (OBR, 71.33±5.86 beat/min; PWR, 75.00±3.61 beat/min) in 10 hours after initiation of sound. Thereafter, respiration rates declined over the following days and returned to near-initial levels (45.33±4.04 beat/min OBR and 43.00±1.00 beat/min PWR) by day 3, an indication that fish recovered from thunderstorm-sound stress after 3 days of exposure. However, the same reaction course was observed each time of multiple sound exposures, repeated 20 times in a row with 4-day intervals, underlining that fish could not attune to repeated thunderstorm sound. Reduced voluntary feed intake as a result of anxiety and appetite loss was recorded in fish exposed to multiple thunderstorm sound, resulting in 50% less growth compared to those without sound treatment by the end of the 80-day experimentation. Therefore, it is advisable to monitor fish behavior during the 3-day stress period after a thunderstorm event in order to prevent waste from excess feeding, that in turn may contribute environment-friendly aquaculture for the future and sustainability of the oceans.</p>
</abstract>

The present study investigated the impacts of multiple thunderstorm-sound exposures on growth and respiratory parameters in Nile tilapia (Oreochromis niloticus) in order to evaluate the acoustic stress response. Thunderstorm-sound exposure for 3 hours triggered respiration speed with an alarm reflex and rapid elevation of opercula beat rate (OBR) and pectoral wing rate (PWR), which increased two-fold over the control with no sound treatment, and peaked (OBR, 71.33±5.86 beat/min; PWR, 75.00±3.61 beat/min) in 10 hours after initiation of sound. Thereafter, respiration rates declined over the following days and returned to near-initial levels (45.33±4.04 beat/min OBR and 43.00±1.00 beat/min PWR) by day 3, an indication that fish recovered from thunderstorm-sound stress after 3 days of exposure. However, the same reaction course was observed each time of multiple sound exposures, repeated 20 times in a row with 4-day intervals, underlining that fish could not attune to repeated thunderstorm sound. Reduced voluntary feed intake as a result of anxiety and appetite loss was recorded in fish exposed to multiple thunderstorm sound, resulting in 50% less growth compared to those without sound treatment by the end of the 80-day experimentation. Therefore, it is advisable to monitor fish behavior during the 3-day stress period after a thunderstorm event in order to prevent waste from excess feeding, that in turn may contribute environment-friendly aquaculture for the future and sustainability of the oceans.

Multiple exposure to thunderstorm sound in Nile tilapia (<italic>Oreochromis niloticus</italic>): physiological response and stress recovery

Department of Aquaculture Industry Engineering, Faculty of Marine Science and Technology

Department of Aquaculture, Faculty of Marine Science and Technology

Annals of Animal Science

This work is licensed under the Creative Commons Attribution 4.0 International License.

Multiple exposure to thunderstorm sound in Nile tilapia (): physiological response and stress recovery

The present study investigated the impacts of multiple thunderstorm-sound exposures on growth and respiratory parameters in Nile tilapia (Oreochromis...

Multiple exposure to thunderstorm sound in Nile tilapia (Oreochromis niloticus): physiological response and stress recovery

Published Online: May 03, 2023

Page range: 449 - 459

Received: Mar 07, 2022

Accepted: Sep 30, 2022

DOI: https://doi.org/10.2478/aoas-2022-0075

Keywords
acoustic noise, growth, respiratory rate, stress response, thunderstorm, tilapia

© 2023 Halit Kusku et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Multiple exposure to thunderstorm sound in Nile tilapia (Oreochromis niloticus): physiological response and stress recovery

Published Online: May 03, 2023

Page range: 449 - 459

Received: Mar 07, 2022

Accepted: Sep 30, 2022

DOI: https://doi.org/10.2478/aoas-2022-0075

Keywordsacoustic noise, growth, respiratory rate, stress response, thunderstorm, tilapia

© 2023 Halit Kusku et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
acoustic noise, growth, respiratory rate, stress response, thunderstorm, tilapia