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

Kim, JH; Kim, H; Kang, D; Lim, YK; Ajani, P; Jung, SW; Baek, SH

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

Kim, JH Kim, H Kang, D Lim, YK Ajani, P

Jung, SW Baek, SH

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Publication Type:: Journal Article
Citation:: Journal of Applied Phycology, 2019, 31 (6), pp. 3737 - 3748
Issue Date:: 2019-12-01

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Field	Value	Language
dc.contributor.author	Kim, JH	en_US
dc.contributor.author	Kim, H	en_US
dc.contributor.author	Kang, D	en_US
dc.contributor.author	Lim, YK	en_US
dc.contributor.author	Ajani, P https://orcid.org/0000-0001-5364-9936	en_US
dc.contributor.author	Jung, SW	en_US
dc.contributor.author	Baek, SH	en_US
dc.date.issued	2019-12-01	en_US
dc.identifier.citation	Journal of Applied Phycology, 2019, 31 (6), pp. 3737 - 3748	en_US
dc.identifier.issn	0921-8971	en_US
dc.identifier.uri	http://hdl.handle.net/10453/135194
dc.description.abstract	© 2019, Springer Nature B.V. 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.	en_US
dc.relation.ispartof	Journal of Applied Phycology	en_US
dc.relation.isbasedon	10.1007/s10811-019-01872-z	en_US
dc.subject.classification	Marine Biology & Hydrobiology	en_US
dc.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	en_US
dc.type	Journal Article
utslib.citation.volume	6	en_US
utslib.citation.volume	31	en_US
utslib.for	0607 Plant Biology	en_US
utslib.for	0704 Fisheries Sciences	en_US
utslib.for	1002 Environmental Biotechnology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - C3 - Climate Change Cluster
utslib.copyright.status	closed_access
pubs.issue	6	en_US
pubs.publication-status	Published	en_US
pubs.volume	31	en_US

Abstract:

© 2019, Springer Nature B.V. 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.

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http://hdl.handle.net/10453/135194