Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.0
2.4
Journals
Fishes
Special Issues
Applications of Acoustics in Marine Fisheries
share announcement

Applications of Acoustics in Marine 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: 24 November 2025 | Viewed by 734

Special Issue Editor

Dr. Víctor Espinosa

E-Mail Website
Guest Editor
Institut d’Investigació per a la Gestió Integrada de Zones Costaneres, Universitat Politècnica de València, 46730 Grau de Gandia, Spain
Interests: underwater acoustics; fisheries acoustics; underwater noise; precision aquaculture; physical acoustics; ultrasound
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Acoustics has been and is thoroughly used to detect and characterize underwater targets, and its particular application to fisheries constitutes an entire technical and scientific discipline. Active acoustic techniques like vertical echosounders or omnidirectional sonars are widely used by fishermen to locate and characterize fish schools. The aim of its use is shifting progressively from the pure interest in achieving successful catches to the assurance of the sustainability of a particular fishery, both from ecosystemic and economical viewpoints. Improving species and size discrimination preserves populations but also reduces fishing efforts and carbon footprints. The technological capabilities of active acoustics have evolved from the improvement in distance range and spatial coverage to multi-frequency and broadband operation, cloud computing, and artificial intelligence tools. New applications include distributed networks of both active and passive acoustic sensors, as well as surface and underwater unmanned platforms and vehicles.

We welcome submissions of original field as well as laboratory research. The manuscripts may be full research articles, short communications, or review articles giving directions for future research or suggestions on how to apply acoustics to better manage fisheries, assuring good species and environmental states.

Dr. Víctor Espinosa
Guest Editor

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

  • fisheries
  • echosounder
  • sonar
  • acoustics
  • biomass

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • Reprint: MDPI Books provides the opportunity to republish successful Special Issues in book format, both online and in print.

Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

25 pages, 5195 KB  
Article
Individual Fish Broadband Echo Recognition Method and Performance Analysis Oriented to Aquaculture Scenarios
by Hang Yang, Jing Cheng, Guodong Li, Shujie Wan and Jun Chen
Fishes 2025, 10(8), 391; https://doi.org/10.3390/fishes10080391 - 7 Aug 2025
Viewed by 239
Abstract
Obtaining the echo of individual fish is an important prerequisite for fisheries acoustic applications, such as in situ measurement of fish target strength and assessment of fish abundance using the counting method. It is also the foundation for evaluating the growth status of [...] Read more.
Obtaining the echo of individual fish is an important prerequisite for fisheries acoustic applications, such as in situ measurement of fish target strength and assessment of fish abundance using the counting method. It is also the foundation for evaluating the growth status of farmed fish and managing aquaculture risks. The density of farmed fish populations is typically higher, and such high-density aquaculture further increases the difficulty of obtaining individual fish echoes in practical applications. Building upon previous research and considering the behavioral characteristics of fish in aquaculture settings, this study conducted performance simulations, live fish experiments in simulated aquaculture cages, and comparative evaluations of three individual fish broadband echo detection methods based on a broadband signal system: the amplitude pulse width method (APM) based on echo envelopes, the peak detection and time delay estimation method (PDM), and the peak time delay combined with instantaneous frequency method (PDIM). This study assumed a dorsolateral fish orientation, which limits its research scope and applicability. The results showed that the PDIM achieved a detection accuracy of 78.34% and a false recognition rate of 1.32%. The APM based on echo envelopes was insensitive to individual fish echoes and had lower recognition accuracy. The PDM exhibited better individual fish echo capture capabilities, while the PDIM demonstrated superior overlapping echo rejection capabilities. Full article
(This article belongs to the Special Issue Applications of Acoustics in Marine Fisheries)
►▼ Show Figures

Figure 1

34 pages, 711 KB  
Article
Criteria for Consistent Broadband Pulse Compression and Narrowband Echo Integration Operation in Fisheries Echosounder Backscattering Measurements
by Per Lunde and Audun Oppedal Pedersen
Fishes 2025, 10(8), 389; https://doi.org/10.3390/fishes10080389 - 6 Aug 2025
Viewed by 219
Abstract
Generic and consistent formulations for measurement of the backscattering cross section (σbs) and the volume backscattering coefficient (sv) using broadband pulse compression and narrowband echo integration are derived, for small- and finite-amplitude sound propagation. The theory [...] Read more.
Generic and consistent formulations for measurement of the backscattering cross section (σbs) and the volume backscattering coefficient (sv) using broadband pulse compression and narrowband echo integration are derived, for small- and finite-amplitude sound propagation. The theory applies to backscattering operation of echosounders and sonars in general, with focus on fisheries acoustics. Formally consistent mathematical relationships for broadband and narrowband operation of such instruments are established that ensure consistency with the underlying power budget equations on average-power form, bridging a gap in prior literature. The formulations give full flexibility in choice of transmit signals and reference signals for pulse compression. Generic and general criteria for quantitative consistency between broadband and narrowband operation are derived, establishing new knowledge and analysis tools. These criteria become identical for small- and finite-amplitude sound propagation. In addition to general criteria, two special cases are considered, relevant for actual operation scenarios. The criteria serve to test and evaluate the extent to which the methods used in broadband pulse compression and narrowband echo integration operating modes are correct and consistent, and to identify and reduce experienced discrepancies between such methods. These are topics of major concern for quantitative acoustic stock assessment, underlying national and international fisheries quota regulations. Full article
(This article belongs to the Special Issue Applications of Acoustics in Marine Fisheries)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop