Passive acoustic monitoring of fish choruses: a review to inform the development of a monitoring and management tool

Reviews in Fish Biology and Fisheries, Journal Year: 2025, Volume and Issue: unknown

Published: March 19, 2025

Language: Английский

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Characterisation of grunt sound pressure level from spawning Atlantic cod ( Gadus morhua )

Bioacoustics, Journal Year: 2024, Volume and Issue: 33(5), P. 460 - 477

Published: July 2, 2024

Since sound from Atlantic cod (Gadus morhua) plays a significant role during their spawning activities, it is imperative to gain insights into pressure levels. This knowledge particularly valuable for understanding how responds anthropogenic sounds, such as the intense seismic air guns. In field experiments within sea cages using multiple instruments, including underwater cameras, hydrophone, and an acoustic vector sensor (AVS), source level of grunts was scientifically measured. The measurements yielded estimated median 123.1 dB re 1 µPa at m (121.8–124.2 dB, 95% confidence interval). compact AVS measured collocated particle motions in three dimensions, providing information regarding directionality addition pressure. directional assists detecting grunt bearing, estimating probable propagation ranges, subsequently reducing uncertainties associated with estimation level. These have demonstrated vocalisations can be potentially broadly used other marine bioacoustics monitoring tracking research.

Language: Английский

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The Australian fish chorus catalogue (2005–2023)

Frontiers in Remote Sensing, Journal Year: 2024, Volume and Issue: 5

Published: Dec. 12, 2024

Biological sources are significant contributors to aquatic soundscapes. Soniferous fish can dominate the soundscape in certain locations, at specific times and frequencies, particularly during production of choruses. Passive acoustic monitoring choruses provide important ecological information about soniferous populations. This study presents Australian Fish Chorus Catalogue, an inventory detected from 83 locations estuarine marine waters. The Catalogue contains data on chorus occurrence spectral temporal measurements, spectrographic images, audio examples 301 catalogue has been developed establish foundations ongoing effort document, quantify, compare, track We hope this open-access depository will be used as a reference for future research facilitate increase understanding choruses, which then applied management populations their respective ecosystems.

Language: Английский

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A Review of Grouper Fisheries Management in the Southeastern and Caribbean U.S.: Challenges, Successes, and Future Directions

Qeios, Journal Year: 2024, Volume and Issue: 6(12)

Published: Dec. 17, 2024

Groupers (Epinephelidae) are ecologically important mesopredators that support valuable fisheries across the globe. Many groupers display slow growth and maturity, high longevity, ontogenetic habitat shifts, spawning-related migrations aggregations, protogynous hermaphroditism, which make them susceptible to overexploitation. In this review, I synthesize available information related management of grouper southeastern Caribbean U.S. highlight current challenges, such as managing multispecies reef fish with growing recreational fishing effort. discuss interventions limited success, establishing marine protected areas improve populations hermaphroditism. also successes, recovering historically depleted stocks, ecosystem-based considerations in stock assessments. how climate change anthropogenic effects expected affect groupers. Lastly, provide examples stakeholder involvement monitoring efforts directed at stocks. The purposes review demonstrate complexities a road map for future research conservation into these economically relevant fishes within beyond region.

Language: Английский

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Automated cataloguing of American silver perch (Bairdiella chrysoura) calls using machine learning

Bioacoustics, Journal Year: 2023, Volume and Issue: 32(4), P. 453 - 473

Published: April 20, 2023

The American silver perch (Bairdiella chrysoura) is a numerically dominant and ecologically important species found throughout coastal habitats along the eastern United States Gulf of Mexico. During spawning in spring summer, male produce distinctive knocking sounds to attract females. These are readily identifiable through aural visual analysis underwater acoustic recordings, providing means track distribution activity these fish. However, as volume passive datasets grows, there an essential need automate process cataloguing vocalisations. approach presented here utilises (1) detection stage, where candidate calls identified based on properties signal kurtosis signal-to-noise ratio, (2) feature extraction stage layer activations returned from pre-trained ResNet-50 convolutional neural network operating wavelet scalogram signals, (3) one-vs-all support-vector-machine classifier. labelled data used build classifier consists 6000 other signals that sample diverse conditions within Pamlico Sound estuary, USA. model accuracy 98.9%, accompanying software provides efficient tool investigate calling patterns data.

Language: Английский

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Acoustic monitoring of artificial reefs reveals Atlantic cod and weakfish spawning and presence of individual bottlenose dolphins

The Journal of the Acoustical Society of America, Journal Year: 2024, Volume and Issue: 156(1), P. 137 - 150

Published: July 1, 2024

The artificial reefs in New York's waters provide structure areas that are typically flat and sandy, creating habitat for a multitude of species as an area to spawn, forage, reside. Passive acoustic data collected on the Fire Island Shinnecock between 2018 2022 detected spawning-associated calls weakfish (Cynoscion regalis) Atlantic cod (Gadus morhua), well presence individual bottlenose dolphins (Tursiops truncatus) through their signature whistles. Weakfish were more vocally active reef, where grunts peaked during new moon phase December, spawning experienced variable peaks mid-July mid-August both reefs. Fifty-seven identified, with whistle repeats ranging from seconds years apart. monitoring allows simultaneous collection information multiple at different trophic levels behavioral helps managers understand how these animals utilize habitats, which can lead improved conservation measures.

Language: Английский

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Sex-specific vertical movements of spawning atlantic cod in coastal habitats inferred from acoustic telemetry

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Oct. 6, 2024

Abstract Fish spawning location and behaviour can be challenging to detect, especially in deep water. Here we utilise two large acoustic telemetry datasets from western mid Norway study the vertical movement dimension of individual Atlantic cod Gadus morhua their natural habitats. The comprise ~ 6 million depth detections 644 sexed, mature cod, collected at seven different Norwegian coastal grounds during 2017–2021. During period, females were typically found shallower depths compared males, while this pattern was much less pronounced or absent outside period. Furthermore, identify a hitherto undescribed sex-dependent behaviour: periodic descents, where made dives, putatively associated with egg release spawning, approximately every third day. Females not showing tended occupy deeper positions water column than “periodic descent” hence may approach retreat males more horizontally. These observed sex-specific behaviours correspond well lek-like description mating system reproductive physiology, are known batches eggs intervals several days as part bet-hedging strategy.

Language: Английский

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A Review of Grouper Fisheries Management in the Southeastern and Caribbean U.S.: Challenges, Successes, and Future Directions

Published: Nov. 14, 2024

Groupers (Epinephelidae) are ecologically important mesopredators that support valuable fisheries across the globe. Many groupers display slow growth and maturity, high longevity, ontogenetic habitat shifts, spawning-related migrations aggregations, protogynous hermaphroditism, which make them susceptible to overexploitation. In this review, I synthesize available information related management of grouper southeastern Caribbean U.S. highlight current challenges, such as managing multispecies reef fish with growing recreational fishing effort. discuss interventions limited success, establishing marine protected areas improve populations hermaphroditism. also successes, recovering historically depleted stocks, ecosystem-based considerations in stock assessments. how climate change anthropogenic effects expected affect groupers. Lastly, provide examples stakeholder involvement monitoring efforts directed at stocks. The purposes review demonstrate complexities a road map for future research conservation into these economically relevant fishes within beyond region.

Language: Английский

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A Review of Grouper Fisheries Management in the Southeastern and Caribbean U.S.: Challenges, Successes, and Future Directions

Qeios, Journal Year: 2024, Volume and Issue: 6(12)

Published: Dec. 19, 2024

Groupers (Epinephelidae) are ecologically important mesopredators that support valuable fisheries across the globe. Many groupers display slow growth and maturity, high longevity, ontogenetic habitat shifts, spawning-related migrations aggregations, protogynous hermaphroditism, which make them susceptible to overexploitation. In this review, I synthesize available information related management of grouper southeastern Caribbean U.S. highlight current challenges, such as managing multispecies reef fish with growing recreational fishing effort. discuss interventions limited success, establishing marine protected areas increase abundance hermaphroditism. also successes, recovering historically depleted stocks, ecosystem-based considerations in stock assessments. how climate change anthropogenic effects expected affect groupers. Lastly, provide examples stakeholder involvement monitoring efforts for stocks. The purposes review demonstrate complexities a road map future research conservation into these economically relevant fishes within beyond region.

Language: Английский

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