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Article

Reproductive Behaviours and Potentially Associated Sounds of the Mottled Grouper Mycteroperca rubra: Implications for Conservation

1
Department of Integrative Marine Ecology (EMI), Stazione Zoologica Anton Dohrn–National Institute of Marine Biology, Ecology and Biotechnology, Genoa Marine Centre, Villa del Principe, Via San Benedetto 2, 16126 Genoa, Italy
2
Department of Biology, University of Padova, Via U. Bassi 58/B, 35121 Padova, Italy
3
UMR 7035 ECOSEAS, CNRS, Université Côte d’Azur, Parc Valrose 28, Avenue Valrose, 06108 Nice, France
4
CoNISMa, Interuniversity National Consortium for Marine Sciences, Piazzale Flaminio 9, 00196 Rome, Italy
5
Marine Protected Area of Tavolara-Punta Coda Cavallo, Via Dante 1, 07026 Olbia, Italy
6
CHORUS Institute, 5 Rue Gallice, 38016 Grenoble, France
7
National Research Council, Institute for the Study of Anthropic Impact and Sustainability in the Marine Environment (CNR-IAS), Via De Marini 16, 16149 Genoa, Italy
8
UMR 5110 CEFREM, CNRS, Université de Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan, France
*
Authors to whom correspondence should be addressed.
Diversity 2022, 14(5), 318; https://doi.org/10.3390/d14050318
Submission received: 15 February 2022 / Revised: 31 March 2022 / Accepted: 19 April 2022 / Published: 21 April 2022
(This article belongs to the Special Issue Biodiversity Conservation in Mediterranean Sea)

Abstract

Most grouper species worldwide are threatened by overfishing. Effective marine protected areas (MPAs) are known to enable population recovery, and consideration of vulnerable species’ reproductive behaviours is fundamental to monitoring and management plans. Many groupers produce sounds associated with reproductive behaviours. Recording these sounds helps to locate spawning sites and improve management efforts to ensure reproduction and viability. This study focuses on a poorly studied yet likely vulnerable grouper species, Mycteroperca rubra, providing novel insights into its reproductive biology by combining underwater visual census surveys, direct visual observations and passive acoustic monitoring within a Mediterranean MPA during two consecutive summers (2017 and 2018). Results indicate that M. rubra individuals were more abundant and larger at one of the protected study sites, where they also occasionally formed unusual aggregations (<30 individuals), likely for spawning. These aggregations and the observation of courtship behaviours suggest that M. rubra spawns in the surroundings of this study site. Moreover, grouper-like unknown sounds were recorded exclusively at this site, suggesting they are associated with M. rubra courtship behaviours. Therefore, this study provides a basis for validating M. rubra sound production and supports the monitoring of its spawning sites via passive acoustics to improve MPA conservation effectiveness.
Keywords: Epinephelidae; passive acoustic monitoring; spawning aggregations; Marine Protected Areas; Mediterranean Sea; courtship behaviour; fish sounds Epinephelidae; passive acoustic monitoring; spawning aggregations; Marine Protected Areas; Mediterranean Sea; courtship behaviour; fish sounds

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MDPI and ACS Style

Desiderà, E.; Mazzoldi, C.; Navone, A.; Panzalis, P.; Gervaise, C.; Guidetti, P.; Di Iorio, L. Reproductive Behaviours and Potentially Associated Sounds of the Mottled Grouper Mycteroperca rubra: Implications for Conservation. Diversity 2022, 14, 318. https://doi.org/10.3390/d14050318

AMA Style

Desiderà E, Mazzoldi C, Navone A, Panzalis P, Gervaise C, Guidetti P, Di Iorio L. Reproductive Behaviours and Potentially Associated Sounds of the Mottled Grouper Mycteroperca rubra: Implications for Conservation. Diversity. 2022; 14(5):318. https://doi.org/10.3390/d14050318

Chicago/Turabian Style

Desiderà, Elena, Carlotta Mazzoldi, Augusto Navone, Pieraugusto Panzalis, Cédric Gervaise, Paolo Guidetti, and Lucia Di Iorio. 2022. "Reproductive Behaviours and Potentially Associated Sounds of the Mottled Grouper Mycteroperca rubra: Implications for Conservation" Diversity 14, no. 5: 318. https://doi.org/10.3390/d14050318

APA Style

Desiderà, E., Mazzoldi, C., Navone, A., Panzalis, P., Gervaise, C., Guidetti, P., & Di Iorio, L. (2022). Reproductive Behaviours and Potentially Associated Sounds of the Mottled Grouper Mycteroperca rubra: Implications for Conservation. Diversity, 14(5), 318. https://doi.org/10.3390/d14050318

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