96 documents found, page 1 of 10
Acoustic fish community in the Madeira Archipelago (North Atlantic Ocean): Char...
Muñoz-Duque, Sebastian; Fonseca, Paulo; Quintella, Bernardo; Monteiro, João Gama; Fernandez, Marc; Silva, Rodrigo; Vieira, Manuel; Amorim, M. Clara P.Marine ecosystems are increasingly subjected to anthropogenic pressures, which demands urgent monitoring plans. Understanding soundscapes can offer unique insights into the ocean status providing important information and revealing different sounds and their sources. Fishes can be prominent soundscape contributors, making passive acoustic monitoring (PAM) a potential tool to detect the presence of vocal fish sp...
Cross-referencing unidentified fish sound data sets to unravel sound sources: a...
Vieira, Manuel; Ríos, Noelia; Muñoz-Duque, Sebastian; Pereira, Jodanne; Carriço, Rita; Fernandez, Marc; Monteiro, João G.; Pais, Miguel PessanhaThere is growing evidence that studying aquatic acoustic communities can provide ecologically relevant information. Understanding these communities may offer unique insights into species behaviour and ecology, while consolidating passive acoustic monitoring as a tool for mapping the presence of target species or estimating changes in aquatic biodiversity. Fish can be significant soundscape contributors, but mos...
First assessment of passive acoustics as a tool to monitor the endangered Medit...
Muñoz‐Duque, Sebastian; Vieira, Manuel; Fonseca, Paulo; Quintella, Bernardo; Charrier, Isabelle; Monteiro, João Gama; Fernandez, Marc; Silva, Rodrigo1. The rarest seal and the world's most endangered pinniped species, the Mediterranean monk seal (Monachus monachus), has a small and isolated population in the Madeira Archipelago (Portugal). This species tends to be extremely wary of humans and, therefore, very difficult to approach and study. 2. Passive acoustic monitoring (PAM) is a non-invasive, cost-effective tool that can be a valuable complement for the...
Turning up the heat: Effects of temperature on agonistic acoustic communication...
Penim, Jorge; Beauchaud, Marilyn; Millot, Morgane; Faria, Ana M.; Vieira, Manuel; Fonseca, Paulo; Vasconcelos, Raquel O.; Amorim, M. Clara P.Acoustic communication is linked to fitness traits in many animals, but under the current scenario of global warming, sound signals can be affected by rising temperatures, particularly in ectothermic organisms such as fishes. This study examines the effect of water temperature in acoustic communication in the two-spotted goby, Pomatoschistus flavescens. To address this, we looked at the effect of different temp...
Characterization of the fish acoustic communities in a Mozambican tropical cora...
Puebla-Aparicio, M; Ascencio-Elizondo, C; Vieira, M; Amorim, MCP; Duarte, R; Fonseca, PauloCoral reefs are biodiversity hotspots in urgent need of protection in most areas of the tropical belt due to increasing local anthropogenic pressures and climate change. Sounds produced by fishes are an important component of soundscapes in these ecosystems, making passive acoustic monitoring (PAM) an effective tool to map the presence of target species or to estimate changes in biodiversity. The present study ...
Ostial vs. wide area circumferential ablation guided by the Ablation Index in p...
Sousa, Pedro A.; Barra, Sérgio; Saleiro, Carolina; Khoueiry, Ziad; Adão, Luís; Primo, João; Lagrange, Philippe; Lebreiro, Ana; Fonseca, PauloPulmonary vein isolation (PVI) guided by the Ablation Index (AI) has shown high acute and mid-term efficacy in the treatment of paroxysmal atrial fibrillation (AF). Previous data before the AI-era had suggested that wide-area circumferential ablation (WACA) was preferable to ostial ablation. However, with the use of AI, we hypothesize that ostial circumferential ablation is non-inferior to WACA and can improve ...
Effects of temperature on acoustic and visual courtship and reproductive succes...
Albouy, Robin; Faria, Ana M.; Fonseca, Paulo; Amorim, M. Clara P.Fish are ectothermic and small changes in water temperature could greatly affect reproduction. The two-spotted goby is a small semi-pelagic species that uses visual and acoustic displays to mate. Here, we studied the effect of temperature (16 and 20 °C) on acoustic and visual courtship and associated reproductive success in 39 males. Temperature influenced male visual courtship performed outside the nest, but i...
Detection of invasive fish species with passive acoustics: Discriminating betwe...
Amorim, M. Clara P.; Wanjala, Joan A.; Vieira, Manuel; Bolgan, Marta; Connaughton, Martin A.; Pereira, Beatriz P.; Fonseca, Paulo; 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...
Long-Term Passive Acoustic Monitoring to Support Adaptive Management in a Sciae...
Stratoudakis, Yorgos; Vieira, Manuel; Marques, João Pedro; Amorim, Maria Clara P.; Fonseca, Paulo; Quintella, Bernardo R.Passive acoustic monitoring (PAM) is useful for monitoring vocal fish but has had so far limited application in fisheries management. Here, four years (2016–2019) of concurrent daily catch and effort fishery data in Portugal and species-specific vocal activity in the Tagus estuary are compared to describe biological and small-scale fishery dynamics for a large sciaenid fish, the meagre (Argyrosomus regius), tha...
Impact of anthropogenic noise on the survival and development of meagre (Argyro...
Trabulo, Rita; Amorim, M. Clara P.; Fonseca, Paulo; Vieira, Manuel; Matos, André B.; Marin-Cudraz, Thibaut; Lemos, Marco F.L.; Moutinho, Ariana B.The growth of human populations has been driving an unprecedent and widespread increase in marine traffic, posing a real threat to marine biodiversity. Even though we are now aware of the negative effects of shipping noise exposure on fish, information about the impact on their early life stages continues to lack. Meagre (Argyrosomus regius) is a vocal fish that uses estuaries with high levels of anthropogenic ...