Marine Noise Effects on Juvenile Sparid Fish Change among Species and Developmental Stages - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Diversity Année : 2023

Marine Noise Effects on Juvenile Sparid Fish Change among Species and Developmental Stages

Effets du bruit marin sur le changement des poissons sparidés juvéniles entre les espèces et les stades de développement

Antonio Calò
Antonio Di Franco
  • Fonction : Auteur
Simona Bussotti
  • Fonction : Auteur
Paolo Guidetti

Résumé

Marine noise is an emerging pollutant inducing a variety of negative impacts on many animal taxa, including fish. Fish population persistence and dynamics rely on the supply of early life stages, which are often very sensitive to disturbance. Impacts of marine noise pollution (MNP) on juvenile fish have rarely been investigated in temperate regions. This is particularly true for the Mediterranean Sea, which is considered as an MNP hotspot due to intensive maritime traffic. In this study, we investigate the relationship between MNP related to boat traffic and (i) assemblage structure and (ii) the density of juvenile fishes (post-settlers at different stages) belonging to the Sparidae family. We quantified MNP produced by boating at four coastal locations in the French Riviera (NW Mediterranean Sea) by linearly combining five variables into a ‘noise index’ (NI): (i) boat visitation, (ii) number of boat passages/hour, (iii) the instantaneous underwater noise levels of passing boats, (iv) continuous boat underwater noise levels and (v) duration of exposure to boat noise. Then, using the NI, we identified an MNP gradient. By using juvenile fish visual censuses (running a total of 1488 counts), we found that (i) the assemblage structure and (ii) the density patterns of three fish species (i.e., Diplodus sargus, D. puntazzo, D. vulgaris) changed along the MNP gradient. Specifically, the density of early D. sargus post-settlers was negatively related to MNP, while late post-settler densities of D. puntazzo and, less evidently, D. vulgaris tended to decrease more rapidly with decreasing MNP. Our findings suggest the following potential impacts of MNP on juvenile sparids related to coastal boat traffic: (i) idiosyncratic effects on density depending on the species and the developmental stage (early vs. late post-settlers); (ii) negative effects on recruitment, due to possible alteration of late post-settlement movement patterns.
Fichier principal
Vignette du fichier
diversity-15-00092-v2.pdf (2.62 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Licence : CC BY - Paternité

Dates et versions

hal-04049219 , version 1 (05-06-2023)

Licence

Paternité

Identifiants

Citer

Eugenio Di Franco, Francesca Rossi, Lucia Di Iorio, Khalil Sdiri, Antonio Calò, et al.. Marine Noise Effects on Juvenile Sparid Fish Change among Species and Developmental Stages. Diversity, 2023, 15 (1), pp.92. ⟨10.3390/d15010092⟩. ⟨hal-04049219⟩
49 Consultations
26 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More