%0 Journal Article %J Frontiers in Marine Science %D 2023 %T Impact of anthropogenic sounds (pile driving, drilling and vessels) on the development of model species involved in marine biofoulingTable_1.docx %A Cervello, Gauthier %A Olivier, Frédéric %A Chauvaud, Laurent %A Winkler, Gesche %A Mathias, Delphine %A Juanes, Francis %A Tremblay, Rejean %K anthropogenic sounds %K Benthic diatoms %K Bioacoustics %K Biofouling %K larval development %K settlement %X The uncontrolled colonization of benthic organisms on submerged surfaces, also called biofouling, causes severe damage in the shipping and aquaculture industries. Biofouling starts with a benthic biofilm composed of a complex assemblage of microbes, bacteria and benthic diatoms, calledmicrofouling, on whichmacrofouling invertebrate species settle and grow. Invertebrate larvae may use natural soundscapes to orientate inshore and choose their optimal habitat. Recent studies have demonstrated that ship sounds enhance the larval settlement and growth of several invertebrate species, such as mussels, associated with biofouling. Among invertebrates, effects of sound generated by offshore human activities are still poorly studied. This study aims to assess the effect of pile driving, drilling and vessel sounds on model species associated with micro and macrofouling. First, the biofilm development of Navicula pelliculosa and Amphora coffeaeformis was assessed, then, the larval development of the blue mussel (Mytilus edulis) was evaluated from the D-veliger to the postlarval stage. Mussel larvae and microalgae were exposed 12 h each day in tanks (Larvosonic) adapted to sound experiments under controlled conditions. All anthropogenic sounds induced a thinner N. pelliculosa biofilm coupled with a lower microalgae concentration. The drilling sound had a stronger effect on the biofilm thickness. The drilling sound significantly reduced the pediveliger settlement and the postlarvae clearance rate by 70.4% and tended to diminish settler sizes compared to control sound. Contrary to our expectation, pile driving tended to enhance larval recruitment by 22% (P=0.077) and the boat sound did not stimulate larval settlements or recruitment. Drilling sound generated a stressful acoustic environment for pediveliger settlements and postlarvae seem to maintain their shell valves closed to preserve energy. We identify potential causes andmechanisms involved in these impacts of anthropophony on larval ecology and microfouling dynamics. %B Frontiers in Marine Science %V 10 %P 1111505 %8 May-05-2023 %G eng %U https://www.frontiersin.org/articles/10.3389/fmars.2023.1111505/full %! Front. Mar. Sci. %R 10.3389/fmars.2023.111150510.3389/fmars.2023.1111505.s001 %0 Journal Article %J Frontiers in Marine Science %D 2023 %T Impact of vessel noise on feeding behavior and growth of zooplanktonic species %A Aspirault, Ariane %A Winkler, Gesche %A Jolivet, Aurélie %A Audet, Céline %A Chauvaud, Laurent %A Juanes, Francis %A Olivier, Frédéric %A Tremblay, Rejean %K bioacoustic %K clearance rate %K Growth %K vessel noise emission %K Zooplankton %X Anthropogenic noise is a pervasive feature of the coastal ocean soundscape and is intensifying as vessel traffic activity increases. Low-frequency sounds from wave action on coastal reefs or anthropogenic noise have been shown to initiate larval settlement of marine invertebrates and accelerate metamorphosis to juvenile stages. These results suggest that some planktonic species can perceive and be impacted by anthropogenic sound. Hence, we tested the hypothesis that vessel noise has an impact on the feeding behavior of blue mussel (Mytilus edulis) veligers and of the copepod Eurytemora herdmani as well as on the growth of the rotifer Brachionus plicatilis. The results show that microalgae and feeding behavior of early life stages of mussels and copepods are not influenced by the presence of vessel noise. The growth of the rotifers was similar between the two sound treatments, but rotifers’ egg production in the absence of vessel noise was higher and eggs were also larger. Our results suggest that the effects of noise on plankton are complex; much more work is needed to unravel these often subtle effects. %B Frontiers in Marine Science %V 10 %P 1111466 %8 Mar-05-2024 %G eng %U https://www.frontiersin.org/articles/10.3389/fmars.2023.1111466/full %! Front. Mar. Sci. %R 10.3389/fmars.2023.1111466 %0 Journal Article %J Ecosphere %D 2022 %T Pull the trigger: interplay between benthic and pelagic cues driving the early recruitment of a natural bivalve assemblage %A Androuin, Thibault %A Barbier, Pierrick %A Foret, Martin %A Tarik Meziane %A Thomas, Mathilde %A Archambault, Philippe %A Winkler, Gesche %A Tremblay, Rejean %A Frédéric Olivier %K bacteria %K bivalves %K Chausey Archipelago %K early larval recruitment %K fatty acids %K picoeucaryotes %K trophic settlement trigger %X Larval settlement and recruitment are crucial phases in the benthic-pelagic life cycle of marine benthic invertebrates that controls population dynamic and habitat connectivity. Our study investigated potential triggers driving the settlement of bivalve larvae in a highly dynamic intertidal coarse sand habitat. The early recruitment rate of five dominant bivalve families and abiotic conditions, particulate (<20 µm) organic matter and sediment organic matter, were monitored from May to October 2014. Pelagic particulate organic matter (<20 µm) was dominated by picoplankton throughout the sampling period, with a substantial diatom bloom in spring. Sediment was characterized by fresh organic matter in spring, as suggested by the dominant contribution of polyunsaturated fatty acids, and by a higher proportion of bacterial fatty acid markers during late summer. Different dynamics were also observed in early bivalve recruitment rates, with four different patterns observed over the sampling period. Multiple regression analysis on selected bivalve families showed species-specific responses to trophic settlement triggers. Indeed, the larva recruitment rate of Mytilidae paralleled pelagic concentration of picoeucaryotes, with the peak early recruitment rate occurring in spring. Surprisingly, the early recruitment rate of Mactridae larvae showed a significant relation to bacterial concentration in the surficial sediment at the end of summer. While the Mytilidae results in such a eutrophic system confirmed those of a previous study in oligotrophic lagoons, therefore supporting the trophic settlement trigger hypothesis, more work is needed to understand the potential role of bacteria in the early recruitment of Mactridae. These results highlight for the first-time inter-specific differences in trophic cues that potentially trigger primary settlement in natural bivalve assemblages. %B Ecosphere %V 13 %8 Jan-01-2022 %G eng %U https://onlinelibrary.wiley.com/toc/21508925/13/1 %N 1 %! Ecosphere %R 10.1002/ecs2.v13.110.1002/ecs2.3672 %0 Journal Article %J Environmental Biology of Fishes %D 2020 %T Anthropogenic boat noise reduces feeding success in winter flounder larvae (Pseudopleuronectes americanus) %A Gendron, Gilberte %A Tremblay, Rejean %A Jolivet, Aurélie %A Frédéric Olivier %A Chauvaud, Laurent %A Winkler, Gesche %A Audet, Céline %K Feeding behaviour %X The aim of this study was to explore an emerging discipline addressing the impact of anthropogenic noise on larval stages of marine organisms. We assessed the influence of boat noise on the feeding behaviour of the pelagic larvae of winter flounder (Pseudopleuronectes americanus, Walbaum, 1792). The hypothesis was that boat noise influences the feeding behaviour of P. americanus flounder larvae independently of prey  density. Aquaria containing P. americanus larvae were placed in water baths in which boat noise was diffused for the “noise” treatment and compared to control aquaria with no sound emissions. Larvae were filmed  using cameras placed above the aquaria and their behaviour was recorded. Larvae exposed to anthropogenic noise displayed significantly fewer hunting events than controls, and their stomach volumes were  significantly smaller. This noise effect was the same at all prey densities used, suggesting that larval feeding behaviour is negatively impaired by anthropogenic noise. %B Environmental Biology of Fishes %V 103 %P 1079 - 1090 %8 Jan-09-2020 %G eng %U http://link.springer.com/10.1007/s10641-020-01005-3 %N 9 %! Environ Biol Fish %R 10.1007/s10641-020-01005-3