02070nas a2200217 4500008004100000245011500041210006900156520134000225653005201565653001801617653000901635653002201644653001701666100002101683700001801704700002101722700002201743700002201765700002201787856004301809 2021 eng d00aIt Is Not Just a Matter of Noise: Sciaena umbra Vocalizes More in the Busiest Areas of the Venice Tidal Inlets0 aIt Is Not Just a Matter of Noise Sciaena umbra Vocalizes More in3 a

Boat noise is known to have a detrimental effect on a vulnerable Mediterranean sciaenid, the brown meagre Sciaena umbra. During summer 2019, two acoustic surveys were conducted at 40 listening points distributed within the inlet areas of Venice (northern Adriatic Sea). Two five- minute recordings were collected per each point during both the boat traffic hours and the peak of the species’ vocal activity with the aims of (1) characterizing the local noise levels and (2) evaluating the fish spatial distribution by means of its sounds. High underwater broadband noise levels were found (sound pressure levels (SPLs)50–20kHz 107–137 dB re 1 μPa). Interestingly, a significantly higher background noise within the species’ hearing sensibility (100–3150 Hz) was highlighted in the afternoon (113 ± 5 dB re 1 μPa) compared to the night (103 ± 7 dB re 1 μPa) recordings due to a high vessel traffic. A cluster analysis based on Sciaena umbra vocalizations separated the listening points in three groups: highly vocal groups experienced higher vessel presence and higher afternoon noise levels compared to the lower ones. Since the species’ sounds are a proxy of spawning events, this suggests that the reproductive activity was placed in the noisier part of the inlets.

10aanthropogenic noise passive acoustic monitoring10acoastal areas10afish10aprotected species10areproduction1 aPicciulin, Marta1 aFacca, Chiara1 aFiorin, Riccardo1 aRiccato, Federico1 aZucchetta, Matteo1 aMalavasi, Stefano uhttps://www.mdpi.com/2077-1312/9/2/23702413nas a2200253 4500008004100000245012800041210006900169520160500238653001701843653001001860653000901870653001101879653001501890100002101905700002501926700001801951700002001969700002201989700002402011700002002035700002202055700002102077856006102098 2019 eng d00aPassive monitoring of phenological acoustic patterns reveals the sound of the camouflage grouper, Epinephelus polyphekadion0 aPassive monitoring of phenological acoustic patterns reveals the3 a

1. Passive acoustic monitoring (PAM) is a non‐invasive technique that uses hydro- phones to monitor populations and ecosystem dynamics. Although many applica- tions of PAM have been developed in recent years, it has never been used to identify a calling marine species.
2. ThesouthpassofFakaravaAtoll,FrenchPolynesia,hostsspawningeventsofmany reef fish species, including the camouflage grouper Epinephelus polyphekadion, with a spawning aggregation abundance exceeding 17 000 individuals during the full moons of June and July.
3. The current study aimed to use PAM to distinguish camouflage grouper sounds among the vocal activities of all fish recorded during the aggregation periods. Audio recordings analysis resulted in the identification of 29 sound types, some of which showed diel and lunar patterns.
4. Temporal analysis of these sounds in relation to spawning activities allowed the identification of camouflage grouper calls. These calls can be described as a single pulse or a series of ‘boom(s)’ with a pulse duration of ~44 ms and a low dominant frequency of 103 ± 31 Hz. Video recordings show that the camouflage grouper pro- duces the ‘booms’ to initialize spawner ascent and to promote synchronous gamete release into the water column.
5. The study highlights for the first time that PAM can be used to identify the previ- ously unknown sound of a fish species. Moreover, we can use it to understand the phenology of some biological activities for improving the resolution of fish bio- diversity assessments.

10abiodiversity10acoral10afish10alagoon10amonitoring1 aJublier, Noémie1 aBertucci, Frédéric1 aKéver, Loïc1 aColleye, Orphal1 aBallesta, Laurent1 aNemeth, Richard, S.1 aLecchini, David1 aRhodes, Kevin, L.1 aParmentier, Eric uhttps://onlinelibrary.wiley.com/doi/abs/10.1002/aqc.324201373nas a2200229 4500008004100000245006900041210006800110260001600178300000700194490000600201520070600207653002400913653001800937653001500955653002900970653000900999653003101008653002101039100002301060700001901083856004101102 2018 eng d00aUnderwater Soundscape Monitoring and Fish Bioacoustics: A Review0 aUnderwater Soundscape Monitoring and Fish Bioacoustics A Review cJan-09-2018 a360 v33 a

Soundscape ecology is a rapidly growing field with approximately 93% of all scientific articles on this topic having been published since 2010 (total about 610 publications since 1985). Current acoustic technology is also advancing rapidly, enabling new devices with voluminous data storage and automatic signal detection to define sounds. Future uses of passive acoustic monitoring (PAM) include biodiversity assessments, monitoring habitat health, and locating spawning fishes. This paper provides a review of ambient sound and soundscape ecology, fish acoustic monitoring, current recording and sampling methods used in long-term PAM, and parameters/metrics used in acoustic data analysis.

10aacoustic monitoring10aambient noise10acoral reef10aEnvironmental monitoring10afish10apassive acoustic detection10aunderwater sound1 aLindseth, Adelaide1 aLobel, Phillip uhttp://www.mdpi.com/2410-3888/3/3/36