High-frequency acoustic backscattering characteristics for acoustic detection of the red tide species Akashiwo sanguinea and Alexandrium affine SCIE SCOPUS

Cited 1 time in WEB OF SCIENCE Cited 1 time in Scopus
Title
High-frequency acoustic backscattering characteristics for acoustic detection of the red tide species Akashiwo sanguinea and Alexandrium affine
Author(s)
Hansoo, Kim; Donhyug, Kang; Won, Jung Seung; Mira, Kim
KIOST Author(s)
Kim, Hansoo(김한수)Kang, Don Hyug(강돈혁)Jung, Seung Won(정승원)Kim, Mira(김미라)
Alternative Author(s)
김한수; 강돈혁; 정승원; 김미라
Publication Year
2019-07
Abstract
Harmful algal blooms (HABs), caused by the overgrowth of certain phytoplankton species, have negative effects on marine environments and coastal fisheries. In addition to cell-counting methods using phytoplankton nets, a hydroacoustic technique based on acoustic backscattering has been proposed for the detection of phytoplankton blooms. However, little is known of the acoustic properties of HAB species. In this study, as essential data to support this technique, we measured the acoustic properties of two HAB species, Akashiwo sanguinea and Alexandrium affine, which occur in the South Sea off the coast of Korea. Due to the small size of the target, we used ultrasound for the measurements. Experiments were conducted under laboratory and field conditions. In the laboratory experiment, the acoustic signal received from each species was directly proportional to the cell abundance. We derived a relationship between the cell abundance and acoustic signal received for each species. The measured signals were compared to predictions of a fluid sphere scattering model. When A. sanguinea blooms appeared at an abundance greater than 3 500 cells/mL, the acoustic signals varied with cell abundance, showing a good correlation. These results confirm that acoustic measurements can be used to detect HAB species.
ISSN
0254-4059
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/38854
DOI
10.1007/s00343-019-8113-1
Bibliographic Citation
Journal of Oceanology and Limnology, v.37, no.4, pp.1268 - 1276, 2019
Publisher
SCIENCE PRESS
Keywords
acoustic backscattering; Akashiwo sanguinea; Alexandrium affine; fluid-sphere scattering model; harmful algal blooms (HABs); red tide
Type
Article
Language
English
Document Type
Article
Publisher
SCIENCE PRESS
Related Researcher
Research Interests

Marine security,Underwater Acoustics,해양방위,수중음향

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