Field application and validity of a red-tide acoustic sensing system (RASS) for monitoring and alerting of harmful algal blooms (HABs) in Korean coastal waters SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
Field application and validity of a red-tide acoustic sensing system (RASS) for monitoring and alerting of harmful algal blooms (HABs) in Korean coastal waters
Author(s)
Kim, J.H.; Kim, H.; Kang, D.; Lim, Y.K.; Ajani, P.; Jung, S.W.; Baek, S.H.
KIOST Author(s)
Kim, Hansoo(김한수)Kang, Don Hyug(강돈혁)Lim, Young kyun(임영균)Jung, Seung Won(정승원)Baek, Seung Ho(백승호)
Publication Year
2019-12
Abstract
Globally, harmful algal blooms (HABs) caused by marine phytoplankton pose a significant threat to human health and result in enormous economic loss. Many strategies have been implemented for their detection, management, and control. One such instrument is the red-tide acoustic sensing system (RASS) which utilizes a backscattered acoustic signal to detect microalgal cells in the water column, proving to be a cheap and easy tool for the HABs detection. In the current study, five RASSs were deployed at fish farms located in HAB-occurring areas of South Korea during the summer of 2018, and their performance examined for the HABs detection. From 26 July to 6 August 2018, the dinoflagellate Cochlodinium polykrikoides was the most abundant HAB species across all locations. A standard curve between the relative received level (RRL) of acoustic intensity as measured by RASS and cell densities of HAB species was constructed (R2 = 0.846) and was successfully applied to quantify the HAB cell density. The RRL values noticeably increased from July 25, 2018 and decreased from August 1. The RRL values corresponding to warning level of HABs (≥ 100 cells mL−1) were not measured after August 5. The highest 22 RRL was recorded on July 29, which corresponded to 2,782 cells mL−1. To evaluate the efficacy and accuracy of the RASS, a significant correlation (R2 = 0.997) between HAB cell abundance and backscattered acoustic signals was confirmed. Results from our study show that the RASS can produce accurate, real-time bloom data, providing significant advantages for the warning of HABs. © 2019, Springer Nature B.V.
ISSN
0921-8971
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/438
DOI
10.1007/s10811-019-01872-z
Bibliographic Citation
Journal of Applied Phycology, 2019
Publisher
Springer Netherlands
Keywords
Early detection; Environmental monitoring; HABs; RASS; Ultrasound
Type
Article
Language
English
Document Type
Article
Publisher
Springer Netherlands
Related Researcher
Research Interests

Underwater acoustics,Bioacoustics,Fishery acoustics,수중음향,생물음향,수산음향

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