Article
Anatomy & Morphology
R. Calvo, M. H. Hofmann, V. Schluessel
Summary: This study aimed to identify the brain regions involved in visual learning in cichlid fish. The expression of pS6 protein was measured in 19 brain areas and compared between different behavioral groups. The results showed that the inferior lobes and tectum opticum were highly activated in the three treatment groups compared to the control group. The avoidance group showed additional activation in other brain regions, while the trained group showed activation in the torus lateralis.
BRAIN STRUCTURE & FUNCTION
(2023)
Article
Biochemistry & Molecular Biology
Calvo Roberta, Schluessel Vera, A. Hofmann Hans, H. Hofmann Michael
Summary: This study investigated the activation of different dopaminergic cell populations in the brain of the cichlid fish Pseudotropheus zebra during different learning tasks. The results showed strong activation of specific dopaminergic cell populations in response to different learning situations, indicating the important regulatory role of dopamine in the learning process.
JOURNAL OF CHEMICAL NEUROANATOMY
(2023)
Article
Zoology
Eric Parmentier, Xavier Raick, Nicolas Leblanc, Ghjuvan Santoni-Guichard, Marine Banse, Sie Jean de Dieu Da, Arthur Van Damme
Summary: Prezygotic barriers play a role in maintaining species diversity by preventing interbreeding, but hybridization has been observed in many taxa and can lead to offspring with intermediate phenotypic features. In cichlids, hybridization is considered to be important for their evolution and can generate new traits. A study on the courtship behavior in hybrid cichlids showed that sounds produced during courtship and color patterns were different from the parent species, indicating that hybridization can affect prezygotic barriers in cichlid evolution.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Biodiversity Conservation
Elena Desidera, Carlotta Mazzoldi, Augusto Navone, Pieraugusto Panzalis, Cedric Gervaise, Paolo Guidetti, Lucia Di Iorio
Summary: This study reveals the reproductive biology of the vulnerable grouper species, Mycteroperca rubra, and confirms the use of passive acoustic monitoring for monitoring its spawning sites to enhance the effectiveness of marine protected areas.
Article
Multidisciplinary Sciences
Shun Satoh, Redouan Bshary, Momoko Shibasaki, Seishiro Inaba, Shumpei Sogawa, Takashi Hotta, Satoshi Awata, Masanori Kohda
Summary: Through experiments on monogamous fish with biparental care, it is found that male fish show prosocial behavior towards their long-term mates and stranger females, but tend to make antisocial choices if their mates are present or if another male is the potential recipient. Cooperative species, such as humans, can exhibit both spontaneous prosocial and antisocial behaviors depending on their social relationships with conspecifics and the overall social context.
NATURE COMMUNICATIONS
(2021)
Article
Acoustics
Youenn Jezequel, Julien Bonnel, Nadege Aoki, T. Aran Mooney
Summary: Marine crustaceans produce broadband sounds that cannot be accurately characterized in tanks, as demonstrated by a comparison between tank and in situ recordings of spiny lobsters. The study highlights the significant differences in temporal, power, and spectral features of the sounds produced in tanks and in natural conditions. Tank physical impacts, including resonant frequencies, sound reverberation, and low frequency attenuation, are identified as major factors distorting broadband crustacean sounds. Understanding these physical impacts is crucial for accurately characterizing marine crustacean sounds.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Buntaro Zempo, Natsuko Tanaka, Eriko Daikoku, Fumihito Ono
Summary: By studying the mating behavior of zebrafish, it was found that successful fertilization involves a complex series of actions including oscillation, wrapping around, hooking, and squeezing/spawning. Coordination of these behaviors increases fertilization success, while mutations or surgical interventions can disrupt the process.
SCIENTIFIC REPORTS
(2021)
Article
Behavioral Sciences
M. M. Silveira, J. F. de Souza, H. Araujo-Silva, A. C. Luchiari
Summary: The study investigated the memory retention of an agonistic encounter in the dusky damselfish. The results indicated that the recognition ability of damselfish can be affected by time, modulating agonistic responses. Familiar conspecifics led to reduced aggressive displays, while unfamiliar conspecifics resulted in increased aggression that diminished over time.
FRONTIERS IN BEHAVIORAL NEUROSCIENCE
(2021)
Review
Fisheries
V. R. Barroso, F. C. Xavier, C. E. L. Ferreira
Summary: Aquatic ecosystems are affected by human activities, leading to a loss of biodiversity. Ocean sound, particularly fish sounds, has been used to study communication, behavior, and biodiversity. Artificial intelligence, specifically machine learning, can be used to detect and classify fish sounds, but the lack of validated sound data for individual species is a challenge. This review examines recent publications on the use of machine learning for fish sound analysis, highlighting key challenges and suggesting directions for future research.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Agriculture, Dairy & Animal Science
Anita Racz, Gabor Adorjan, Erika Fodor, Boglarka Sellyei, Mohammed Tolba, Adam Miklosi, Mate Varga
Summary: Paradise fish was a popular subject of behavioral research in the late 20th century, but recently zebrafish has become the central model due to its genetic toolkit and fully sequenced genome. However, due to the complexity of paradise fish behavior, there is a need to develop it as a modern model for behavioral and evolutionary developmental biology studies.
Article
Fisheries
Josie Schwartz Caldas, Adriele Lima da Silva, Leandro Melo de Sousa, Erilda Barbosa de Sousa, Iann Leonardo Pinheiro Monteiro, Fabio Jose Torres de Barros, Leandro Godoy
Summary: This study investigated the possibility of obtaining sperm from the endangered Hypancistrus zebra without hormonal induction, and found that hormonal treatment resulted in males releasing a higher volume of semen with higher quality. The use of exogenous hormones is crucial for controlling the reproductive cycle of fish species in captivity, especially for those facing extinction.
Article
Environmental Sciences
Andrea C. Crupkin, Ariana B. Fulvi, Fernando G. Iturburu, Sandra Medici, Julieta Mendieta, Ana M. Panzeri, Mirta L. Menone
Summary: Azoxystrobin is a widely used systemic fungicide that inhibits mitochondrial respiration in target fungi, but its effects on non-target organisms are not well studied. This research evaluated biomarkers of oxidative stress, hematological, physiological, and genotoxicity in cichlid fish exposed to environmentally relevant concentrations of AZX, showing negative effects at realistic concentrations and highlighting the importance of considering developmental stage on biomarker evaluation.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2021)
Article
Behavioral Sciences
Carlos Passos, Federico Reyes, Cecilia Jalabert, Laura Quintana, Bettina Tassino, Ana Silva
Summary: The study reveals that in annual fishes, cortisol promotes reproduction in both sexes of A. reicherti with sexually distinct effects, contrary to the traditional role of stress response impairing reproduction. Male Austrolebias reicherti increase cortisol levels as breeding season progresses, leading to increases in female GSI and HSI indices and a decrease in male HSI. Additionally, cortisol treatment induces changes in male courtship behavior and coloration, weight loss in males, and an increase in female HSI.
Article
Fisheries
Patricio Mena-Valenzuela, Jonathan Valdiviezo-Rivera, Javier Mena-Olmedo, Windsor E. Aguirre
Summary: The reproductive behavior of the Andean catfish Astroblepus ubidiai was studied in a spring near Lake San Pablo in the province of Imbabura, Ecuador. Several mating attempts and successful copulation were observed, and the copulation process was described in detail.
JOURNAL OF FISH BIOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Dawit Moges Fasil, Hamida Hamdi, Amal Al-Barty, Abeer Abu Zaid, S. K. S. Parashar, Biswadeep Das
Summary: The study found that the combined use of selenium and zinc nanoparticles significantly improved the growth performance and reproductive capacity of fish.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Ecology
Manuel Vieira, M. Clara P. Amorim, Paulo J. Fonseca
Summary: Male Lusitanian toadfish aggregate and vocalize to attract females for mating, showing variable vocal patterns on individual and group levels. Male fish exhibit alternating or synchronous calling patterns during chorusing, possibly influenced by motivation and social context.
ECOLOGICAL INFORMATICS
(2021)
Correction
Biology
Daniel Alves, Manuel Vieira, M. Clara P. Amorim, Paulo J. Fonseca
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Article
Biology
Daniel Alves, Manuel Vieira, M. Clara P. Amorim, Paulo J. Fonseca
Summary: This study found that boat noise can significantly reduce the acoustic active space of fish, affect their chorusing behavior, and potentially have negative impacts on breeding success and fitness.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2021)
Letter
Biochemistry & Molecular Biology
Julie Thevenet, Nicolas Grimault, Paulo Fonseca, Nicolas Mathevon
Article
Biology
Rafael A. Lara, Lukas Breitzler, Ieng Hou Lau, Flora Gordillo-Martinez, Fangyi Chen, Paulo J. Fonseca, Andrew H. Bass, Raquel O. Vasconcelos
Summary: Anthropogenic noise has harmful effects on the auditory system and wellbeing of animals, and its impact on auditory function and inner ear sensory receptors during early development is not well understood. This study used zebrafish larvae as a model and found that chronic exposure to white noise affected the sensitivity and morphology of the inner ear, as well as the auditory-evoked swimming responses. These changes were accompanied by a decrease in saccular hair cell number and epithelium area. Overall, this study highlights the importance of investigating the effects of environmental noise on the early development of sensory and behavioral responses to sound stimuli.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Environmental Sciences
A. Faria, P. J. Fonseca, M. Vieira, L. M. F. Alves, M. F. L. Lemos, S. C. Novais, A. B. Matos, D. Vieira, M. C. P. Amorim
Summary: This study provides the first evidence of the detrimental effects of boat noise exposure on fish development and stress biomarker responses in the field. If critical early stages are unable to compensate and adapt to noise stress later in ontogeny, anthropogenic noise has the potential to severely impact marine fish populations' resilience and dynamics.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
M. Clara P. Amorim, Manuel Vieira, Gabriela Meireles, Sara C. Novais, Marco F. L. Lemos, Teresa Modesto, Daniel Alves, Ana Zuazu, Ana F. Lopes, Andre B. Matos, Paulo J. Fonseca
Summary: This study investigated the impacts of boat noise on the reproductive success of wild Lusitanian toadfish. The results showed that boat noise decreased the likelihood of receiving eggs, decreased the number of live eggs, and increased the number of dead eggs for male toadfish. The exposed males also showed depressed vocal activity and slightly higher cortisol levels. The findings suggest that boat noise can significantly affect the reproductive fitness of Lusitanian toadfish.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Eva-Lotta Blom, Joanna R. Wilson, Charlotta Kvarnemo, M. Clara P. Amorim, Ola Svensson
Summary: This study investigates the effects of altered body condition on acoustic and visual courtship behavior in sand goby males. It was found that females only spawned with males that produced courtship sound, but there were no treatment effects on the occurrence of spawning. Males fed in excess built more well-covered nests compared to food-deprived males. The study suggests that male courtship sounds are crucial in female mate choice, but the information content of the courtship sounds and its relationship with male condition is still unclear.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2022)
Article
Ecology
Manuel Vieira, M. Clara P. Amorim, Tiago A. Margues, Paulo J. Fonseca
Summary: Climate change is increasing temperature extremes in aquatic environments, which pose a threat to ectothermic animals like fishes. This study examined the effect of temperature on spawning-related chorusing behavior in fish and found that temperature plays a crucial role in fish reproduction. The use of passive acoustic monitoring can provide valuable information for conservation management plans.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Article
Environmental Sciences
M. Clara P. Amorim, Joan A. Wanjala, Manuel Vieira, Marta Bolgan, Martin A. Connaughton, Beatriz P. Pereira, Paulo J. Fonseca, Filipe Ribeiro
Summary: Invasive alien species, such as the soniferous weakfish, are increasingly impacting biodiversity and ecosystem functioning. We found that weakfish in the Tagus estuary produce sciaenid-like sounds similar to those produced by captive breeding weakfish. These sounds differ from those produced by native sciaenids, but can be easily recognized through visual and aural inspections. Passive acoustic monitoring can thus be used as a cost-effective tool for mapping and monitoring the distribution of invasive weakfish.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Robin Albouy, Ana M. Faria, Paulo J. Fonseca, M. Clara P. Amorim
Summary: Temperature affects courtship behavior in fish, but not reproductive success. The number of sound plays a crucial role in predicting spawning success.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Acoustics
M. Clara P. Amorim
Summary: This paper outlines the author's research over three decades and reviews the role of fish sounds in mate choice and reproduction. It provides advice to young scientists and points toward future research in this field. Studies on different fish species show that male mating acoustic signals can convey information about their size, body condition, and readiness to mate. Playback experiments consistently reveal that females prefer vocal males and select for higher calling rates. The paper concludes with the suggestion to increase knowledge on fish mating signals, especially considering the emerging use of fish sounds to monitor aquatic environments.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2023)
