9 documents found, page 1 of 1
Acoustic fish community in a biogeographic transition zone of the Northeast Atl...
Ríos, Noelia; Pereira, Jodanne; Muñoz-Duque, Sebastian; Silva, Gonçalo; Pais, Miguel Pessanha; Fonseca, P.J.; Vieira, Manuel; Amorim, Maria Clara PFish sounds are a significant component of marine soundscapes. Recently, passive acoustic monitoring (PAM) arose as a promising tool for ecological monitoring, but a good characterization of fish acoustic communities is still needed. This study is the first to characterize the fish acoustic community at a biogeographic transition zone in the Northeast Atlantic. The research was conducted in a marine protected a...
Detection of invasive fish species with passive acoustics: Discriminating betwe...
Amorim, Maria Clara P; Wanjala, Joan A.; Vieira, Manuel; Bolgan, Marta; Connaughton, Martin A.; Pereira, Beatriz P.; Fonseca, Paulo J.; Ribeiro, FilipeInvasive alien species have been rising exponentially in the last decades impacting biodiversity and ecosystem functioning. The soniferous weakfish, Cynoscion regalis, is a recent invasive sciaenid species in the Iberian Peninsula and was first reported in the Tagus estuary in 2015. There is concern about its possible impacts on native species, namely the confamiliar meagre, Argyrosomus regius, as there is over...
Male acoustic display in the sand goby – Essential cue in female choice, but un...
Blom, Eva-Lotta; Wilson, Joanna R.; Kvarnemo, Charlotta; Amorim, Maria Clara P; Svensson, OlaMany teleost fishes use acoustic and visual signalling during courtship. Such displays may convey information about body condition. Here we experimentally altered body condition of sand goby (Pomatoschistus minutus) males to examine effects on acoustic and visual courtship and subsequent spawning decisions. Over two weeks, males fed in excess were fed daily, whereas food-deprived males were fed once a week. Fem...
Boat noise impacts Lusitanian toadfish breeding males and reproductive outcome
Amorim, Maria Clara P; Vieira, Manuel; Meireles, Gabriela; Novais, Sara C; Lemos, Marco F.L.; Modesto, Teresa; Alves, Daniel; Zuazu, Ana; Lopes, Ana F.Anthropogenic noise is a growing threat to marine organisms, including fish. Yet very few studies have addressed the impact of anthropogenic noise on fish reproduction, especially in situ. In this study, we investigated the impacts of boat noise exposure in the reproductive success of wild Lusitanian toadfish (Halobatrachus didactylus), a species that relies on advertisement calls for mate attraction, using beh...
Vocal rhythms in nesting Lusitanian toadfish, Halobatrachus didactylus
Vieira, Manuel; Amorim, Maria Clara P; Fonseca, PauloMales of several fish species aggregate and vocalize together, increasing the detection range of the sounds and their chances of mating. In the Lusitanian toadfish (Halobatrachus didactylus), breeding males build nests under rocks in close proximity and produce hundreds of boatwhistles (BW) an hour to attract females to lay their demersal eggs on their nests. Chorusing behaviour includes fine-scale interactions...
Fish sounds and boat noise are prominent soundscape contributors in an urban Eu...
Vieira, Manuel; Fonseca, Paulo; Amorim, Maria Clara PPassive acoustic monitoring is a valuable tool for non-intrusive monitoring of marine environments, also allowing the assessment of underwater noise that can negatively affect marine organisms. Here we provide for the first time, an assessment of noise levels and temporal soundscape patterns for a European estuary. We used several eco-acoustics methodologies to characterize the data collected over six weeks wit...
Boat noise affects meagre (Argyrosomus regius) hearing and vocal behaviour
Vieira, Manuel; Beauchaud, Marilyn; Amorim, Maria Clara P; Fonseca, PauloAquatic noise has increased in last decades imposing new constraints on aquatic animals' acoustic communication. Meagre (Argyrosomus regius) produce loud choruses during the breeding season, likely facilitating aggregations and mating, and are thus amenable to being impacted by anthropogenic noise. We assessed the impact of boat noise on this species acoustic communication by: evaluating possible masking effect...
Vocal repertoire and consistency of call features in the meagre Argyrosomous re...
Bolgan, Marta; Pereira, Beatriz P.; Crucianelli, Aurora; Mylonas, Constantinos C; Pousão-Ferreira, Pedro; Parmentier, Eric; Fonseca, Paulo J.Passive Acoustic Monitoring (PAM) is a non-intrusive and cost-effective method capable of providing high-resolution, long-term information on the status and health of vocal populations and communities. To successfully monitor the same species over wide geographical and temporal scales, it is necessary to characterise the range of sound variability, as well as the consistency of sound features between population...
Chorusing Behaviour in the Lusitanian Toadfish: Should I Match My Neighbours' C...
Jordão, Joana; Fonseca, Paulo; Amorim, Maria Clara PChoruses have been described mostly in birds, anurans and insects but have been poorly studied in fish. Research in batrachoidid (toadfishes) species suggest vocal facilitation among neighbouring males, but whether chorusing fish present more complex interactions is unknown. In this study, we test the hypothesis that chorusing fish males compete actively to increase attractiveness to females. We first describe ...