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Fishes
Special Issues
Application of Acoustics in Fisheries
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Application of Acoustics in Fisheries

A special issue of Fishes (ISSN 2410-3888). This special issue belongs to the section "Fishery Facilities, Equipment, and Information Technology".

Deadline for manuscript submissions: closed (10 January 2023) | Viewed by 2928

Special Issue Editors

Prof. Dr. Chi-Fang Chen

E-Mail Website
Guest Editor
Underwater Acoustics Lab, National Taiwan University, Taipei 10617, Taiwan
Interests: underwater acoustics; marine bioacoustics; passive acoustic monitoring
Special Issues, Collections and Topics in MDPI journals
Dr. Kwang-Tsao Shao

E-Mail Website
Guest Editor
Biodiversity Research Center, Academia Sinica, Taipei 11529, Taiwan
Interests: fish biodiversity; biodiversity informatics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sound is the most efficient means for fishes to communicate underwater, and they have evolved over millions of years to utilize underwater sound as a primary means of communicating and assessing their environment. Sound plays an essential role in critical activities for fishes, such as migration, spawning, foraging, avoidance of predation, and schooling. Fisheries scientists have used acoustics to estimate fish biomass and abundance (stock assessment), evaluate spatial and temporal distributions, and measure school size, distributions, and population structure.

Many recent technical advancements in recording equipment, advanced algorithms (such as acoustic indices), and analysis software are turning the application of acoustics into an increasingly effective tool for a better understanding of the habitat preferences of key fish species, providing a better focus for their conservation and study of spawning populations of soniferous fishes.

Fisheries acoustics have continued to evolve and support a range of research and monitoring objectives. The purpose of this Special Issue is to collect the latest innovative research results in the field of fish communication, their vocalization phenology, and behavioral responses to climatic and anthropogenic factors. We also welcome topics on any acoustic fisheries measurements with oceanographic data leading to ecosystem-based fisheries management.

Prof. Dr. Chi-Fang Chen
Prof. Dr. Kwang-Tsao Shao
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Fishes is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • fish call types
  • fish call production mechanisms
  • fish call feature extraction
  • passive monitoring
  • active monitoring
  • acoustic cameras
  • marine ecology
  • noise impact
  • acoustic indices
  • fish population
  • fisheries stock assessment

Published Papers (2 papers)

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Research

10 pages, 2318 KiB  
Article
Characteristics of Sound Attenuation by Individual and Multiple Fishes
by Hansoo Kim, Sungho Cho, Jee Woong Choi and Donhyug Kang
Fishes 2023, 8(3), 161; https://doi.org/10.3390/fishes8030161 - 13 Mar 2023
Viewed by 1274
Abstract
Fish biomass and stock assessment are estimated from acoustic volume backscattering strengths (Sv) obtained from various hydroacoustic equipment. Although sound attenuation due to fish schools and water influences the Sv value, only attenuation from water is considered during the acoustic data process. For [...] Read more.
Fish biomass and stock assessment are estimated from acoustic volume backscattering strengths (Sv) obtained from various hydroacoustic equipment. Although sound attenuation due to fish schools and water influences the Sv value, only attenuation from water is considered during the acoustic data process. For these reasons, it is necessary to understand the characteristics of sound attenuation by fish. Unfortunately, little is known about sound attenuation from fish. In the present study, the attenuation from one to four fish specimens was precisely measured during ex situ experiments in a water tank. The scientific echo sounder of a split-beam 200 kHz transducer and a miniature hydrophone were used for the attenuation measurements. Results show that the maximum attenuation coefficient (α) was approximately 25 dB/cm when the 4 multiple fishes had high fish heights. The relationship between the attenuation coefficient (α200kHz) and the total fish height (Htotal) was approximately α200kHz=0.54∗Htotal ± 0.06 (r2=0.72). This work describes the sound attenuation characteristics to provide basic information for the compensation of Sv from fish schools or layers. Full article
(This article belongs to the Special Issue Application of Acoustics in Fisheries)
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15 pages, 5591 KiB  
Article
Effects of Different Culture Densities on the Acoustic Characteristics of Micropterus salmoide Feeding
by Renyu Qi, Huang Liu and Shijing Liu
Fishes 2023, 8(3), 126; https://doi.org/10.3390/fishes8030126 - 23 Feb 2023
Cited by 2 | Viewed by 979
Abstract
The intensity and frequency of the acoustic signals generated by different behaviors of largemouth bass (Micropterus salmoides) have different characteristics. The acoustic signals generated during feeding can be used to analyze the characteristic patterns of their used behavior, which can provide a [...] Read more.
The intensity and frequency of the acoustic signals generated by different behaviors of largemouth bass (Micropterus salmoides) have different characteristics. The acoustic signals generated during feeding can be used to analyze the characteristic patterns of their used behavior, which can provide a theoretical basis for applications such as automatic feeding based on acoustic signals. We used passive acoustics combined with video to study the feeding acoustic signals of largemouth bass in a recirculating water culture system (4, 8, 12, and 16 fish/m3). The result of the time–frequency and power spectrum analysis of the feeding sound signals showed that the short-time average amplitude of the feeding signal was well distinguished from the background noise, both the swallowing and the chewing sounds were positively correlated with the culture density, and the correlation between the swallowing sound and number of fish was stronger; at different culture densities, the short-time average zero-crossing in the swallowing phase of the largemouth bass suddenly dropped to about 500 and rose to about 1000 in the chewing process. Therefore, both the chewing and the swallowing sounds can be used as parameters to automatically identify the largemouth bass feeding process signal. The spectrum entropy in the feeding process of the largemouth bass was maintained at about 4–6 for different culture densities. In the power spectrum, the main feeding sounding frequencies of the largemouth bass at different farming densities and the distinguishable spectral range of the background noised ranged from 1 to 20 kHz, the main peak frequency of the feeding sound was within the range of 1.2 to 3.0 kHz, and the main power value of the power spectrum was positively correlated with farming density. Full article
(This article belongs to the Special Issue Application of Acoustics in Fisheries)
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