Acoustic Target Strength Measurements for Biomass Estimation of Aquaculture Fish, Redlip Mullet (Chelon haematocheilus) SCIE SCOPUS

Cited 6 time in WEB OF SCIENCE Cited 8 time in Scopus
Title
Acoustic Target Strength Measurements for Biomass Estimation of Aquaculture Fish, Redlip Mullet (Chelon haematocheilus)
Author(s)
Kim, Hansoo; Kang, Donhyug; Cho, Sungho; Kim, Mira; Park, Jisung; Kim, Kiseon
KIOST Author(s)
Kim, Hansoo(김한수)Kang, Don Hyug(강돈혁)Cho, Sungho(조성호)Kim, Mira(김미라)
Publication Year
2018-09
Abstract
Redlip mullet (Chelon haematocheilus) is distributed in coastal waters of the North-Western Pacific Ocean and is a cultured fish in Korea. A hydroacoustic technique constitutes a useful method to assess the biomass and spatial distribution of mullet in sea cages or in coastal waters, and acoustic target strength (TS) information of the target fish is an essential parameter in using this method. In this study, ex situTS measurements of 16 live mullets were made in an aquaculture sea cage in Korea. The split-beam scientific echo-sounder used for measurements was comprised of 38, 120, 200, and 420 kHz frequencies. An underwater video camera was simultaneously used to observe the mullets' behavior during the TS measurements. The mullet TS data was analyzed from a wide range of total fish length (FL: 14.3-40.3 cm). As results for all frequencies, the frequency dependence of the mean TS values were relatively low, and the difference in mean TS was within 2.5 dB. When the slope of the least-squares regression line was forced to 20 into the TS equation, the resulting value for the constant term (b(20)) at each frequency was -67.0 dB, -68.3 dB, -66.3 dB, and -68.5 dB, respectively. The data tended to be frequency dependent. Additionally, the maximum TS appeared between tilt angles of 0 degrees and 10 degrees. These results indicate that TS measurements can be applied to estimate the biomass of the mullet in sea cages or in coastal waters.
ISSN
2076-3417
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/849
DOI
10.3390/app8091536
Bibliographic Citation
APPLIED SCIENCES-BASEL, v.8, no.9, 2018
Publisher
MDPI
Subject
COD GADUS-MORHUA
Keywords
Target strength (TS); Redlip mullet (Chelon haematocheilus); ex situ measurement; TS function
Type
Article
Language
English
Document Type
Article
Publisher
MDPI
Related Researcher
Research Interests

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

Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse