Underwater Acoustics for Sustainable Fishery and Aquatic Ecosystem Managements

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Marine Biology".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 4483

Special Issue Editors


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Guest Editor
Field Science Center for Northern Biosphere, Hokkaido University, Sapporo 096-0014, Japan
Interests: biodiversity; conservation biology; conservation ecology; marine ecology; marine environment; marine biodiversity; aquatic ecology; fisheries

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Guest Editor
Estuary Research Center, Shimane University, Matsue, Shimane 690-8504, Japan
Interests: coastal ecosystem; marine living resources; acoustic resource measurement; biological distribution; algal field

Special Issue Information

Dear Colleagues,

Underwater acoustics has a history of 100 years and is now widely used as a tool for visualizing underwater organisms. In particular, research on active acoustics using sonar and echo sounder (especially quantitative echo sounder) is widely used internationally for the estimation of fishery resources biomass and the distribution on underwater organisms. Thus, it is indispensable in the field of fishery resources management and aquatic ecology research. In addition, research on passive acoustics, such as hydrophones, which are installed in water to collect biological sounds in under water, is currently undergoing remarkable development, and it is widely used as acoustic ecology research for understanding the distribution and behavior of underwater organisms. Acoustic telemetry, which combines an acoustic receiver and transmitter, is also being used as a tool for exploring the behavioral ecology of underwater organisms, and it is expected in future research.

In this Special Issue, we are calling for a wide range of advanced applied research utilizing the abovementioned underwater acoustic tools, especially research that contributes to the sustainable management of fishery resources and aquatic ecosystems.

Dr. Miyashita Kazushi
Dr. Kenji Minami
Guest Editors

Manuscript Submission Information

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Keywords

  • fishery acoustics
  • bioacoustics
  • echo sounder
  • hydrophone
  • acoustic telemetry
  • ecology
  • aquatic ecosystem
  • ecosystem service
  • fishery resources management
  • ecosystem management
  • smart fishery

Published Papers (2 papers)

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Research

14 pages, 2137 KiB  
Article
Target Strength Measurements of Free-Swimming Sandeel Species, Ammodytes spp., in a Large Indoor Experimental Aquarium
by Yanhui Zhu, Kosuke Mizutani, Kenji Minami, Hokuto Shirakawa, Yohei Kawauchi, Huamei Shao, Makoto Tomiyasu, Yuka Iwahara, Tsutomu Tamura, Masahiro Ogawa, Kai Tatsuyama and Kazushi Miyashita
J. Mar. Sci. Eng. 2022, 10(7), 966; https://doi.org/10.3390/jmse10070966 - 14 Jul 2022
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Abstract
The sandeel species (Ammodytes spp.) occupy a critical ecological position in connecting lower trophic levels to higher ones. However, they are strongly affected by the marine environment and their catch rates are trending downward. In this study, the target strength (TS [...] Read more.
The sandeel species (Ammodytes spp.) occupy a critical ecological position in connecting lower trophic levels to higher ones. However, they are strongly affected by the marine environment and their catch rates are trending downward. In this study, the target strength (TS) of sandeel species was measured in free-swimming specimens using a split-beam quantitative echo sounder with 38 and 120 kHz frequencies in a physically controlled environment. Parameters a and b used in the estimated TSmean–fork length (FL: 13.5–21.5 cm) equation were 53.7 and −124.3 dB at 38 kHz, and 71.3 and −153.2 dB at 120 kHz, respectively. The TS of the sandeel species were not proportional to the square of the FL but increased relatively rapidly with increasing body size. In addition, the mean and standard deviation of the swimming angle for the sandeel species from the acoustic data at 120 kHz were −2.2° and 7.7°, respectively, and most were in the −30° to 30°, range. Furthermore, TS was stronger at 38 kHz than at 120 kHz for all FL classes. The use of such frequency characteristics could facilitate the discrimination of fish species in the field and the sustainable assessment of sandeel species stocks. Full article
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20 pages, 4616 KiB  
Article
The Spatial Variation of Acoustic Water Column Data and Its Relationship with Reef-Associated Fish Recorded by Baited Remote Underwater Stereo-Videos off the Western Australia Coast
by Marcela Montserrat Landero Figueroa, Miles J. G. Parsons, Benjamin J. Saunders and Iain M. Parnum
J. Mar. Sci. Eng. 2022, 10(1), 52; https://doi.org/10.3390/jmse10010052 - 04 Jan 2022
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Abstract
Spatially explicit information on coral fish species abundance and distribution is required for effective management. Nonextractive techniques, including echosounders and video census, can be particularly useful in marine reserves where the use of extractive methods is restricted. This study aimed to investigate the [...] Read more.
Spatially explicit information on coral fish species abundance and distribution is required for effective management. Nonextractive techniques, including echosounders and video census, can be particularly useful in marine reserves where the use of extractive methods is restricted. This study aimed to investigate the possibility of combining echosounders and baited remote underwater stereo-videos (stereo-BRUVs) in providing more holistic information on the distribution of demersal and semidemersal reef-associated fish. The spatial distribution of fish biomass was assessed using both methods in two small areas, one in Cockburn Sound (CS), a temperate body of water, and the other in the tropical waters of the Ningaloo Marine Park (NMP). The results showed high correlations between the acoustic and stereo-BRUV data in CS, suggesting the potential use of both for a better estimation of biomass in the area. The results for the NMP showed weaker correlations between the two datasets and highlighted the high variability of the system. Further studies are required, but our initial findings suggest a potential benefit of combining both techniques in the reef-associated fish distribution assessment. Full article
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