Article
Multidisciplinary Sciences
Chor Hong Lim, Tomoko Soga, Ishwar S. Parhar
Summary: Social disturbance in interpersonal relationships is a primary source of stress in humans. This study investigated the regulatory relationship between the central 5-HT system and SPX1a gene expression in Nile tilapia. The results showed that 5-HT can down-regulate the expression of SPX1a, and socially defeated tilapia exhibited increased SPX1a expression and up-regulated 5-HT receptors. Citalopram treatment normalized SPX1a gene expression in socially defeated fish.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Biochemistry & Molecular Biology
Larken Root, Aurora Campo, Leah MacNiven, Pazit Con, Avner Cnaani, Dietmar Kultz
Summary: The interaction of organisms with their environment is complex and requires the study of genotype to phenotype continuum at multiple levels of organization. Studies of transcriptome and proteome regulation are necessary for better understanding environmental effects on organisms. The application of functional enrichment analyses to DIA assay data sets can identify key elements controlled by environmental factors in organisms.
MOLECULAR ECOLOGY RESOURCES
(2021)
Article
Multidisciplinary Sciences
Nehal A. Younis, Hasnaa Thabit, Salma I. El-Samannoudy, Marwa M. Attia
Summary: This study evaluated the immunological status of Oreochromis niloticus (O. niloticus) by examining the presence of encysted metacercariae and assessing immune responses and biochemical markers in infected fish. The prevalence of encysted metacercariae from the family Cyathocotylidae (Prohemistomum vivax) was 25%. Infected organs showed elevated expression of immune-related genes, and infected fish exhibited higher levels of liver enzymes (AST, ALT), blood glucose, cortisol, and lysozyme activity compared to non-infected fish.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Alaa El-Din H. Sayed, Shaimaa K. Idriss, Sary Kh. Abdel-Ghaffar, Asmaa A. A. Hussein
Summary: The study examined the DNA damage response in erythrocytes of fish exposed to volatile organic compounds (VOCs), finding evidence of genotoxic effects and potential biomarkers for environmental pollution. Despite the dangers of VOCs, little is known about their hemotoxic, cytotoxic, and genotoxic effects on fish. The research optimized an assay method to measure apoptosis and DNA damage in erythrocytes of tilapia fish exposed to benzene, toluene, and xylene and identified the highest levels of apoptosis, DNA damage, and histopathological alterations in fish exposed to benzene.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Veterinary Sciences
Everton Andre de Oliveira, Yslla Fernanda Fitz Balo Merigueti, Isabella Braghin Ferreira, Isabele Santos Garcia, Alini Soriano Pereira, Rosemeire de Souza Santos, Louise Bach Kmetiuk, Andrea Pires dos Santos, Alexander Welker Biondo, Rogerio Giuffrida, Vamilton Alvares Santarem
Summary: The study experimentally assessed Nile tilapia as a potential paratenic host for Toxocara spp. It was found that despite shedding viable eggs through the gastrointestinal tract, tilapias may not play a role as a suitable paratenic host. Therefore, the risk of zoonotic transmission through fish meat consumption is low.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Fisheries
Alison A. Sousa, Luisa Nora, Diogo L. A. Lopes, Tiago G. Petrolli, Valcenir J. M. Furlan, Roger Wagner, Charles M. Giacomelli, Matheus D. Baldissera, Aleksandro S. Da Silva
Summary: The study suggests that supplementation of vegetable choline improves fatty acid profiles in the meat of Nile tilapia raised in a biofloc system. Specifically, the treatments with 800 and 1200 mg kg(-1) led to higher levels of polyunsaturated fatty acids, which are desirable for consumers.
Article
Multidisciplinary Sciences
Tofunmi E. Oladimeji, Isabel C. Caballero, Mariana Mateos, Michael O. Awodiran, Kirk O. Winemiller, Alphonse Adite, Luis A. Hurtado
Summary: Inland fisheries in Africa play a vital role in providing protein and income for the population. The sustainable management of these fisheries could greatly benefit from the identification and characterization of regional genetic stocks. However, there is a lack of information regarding the genetic diversity of most African freshwater fisheries. This research focused on the African bonytongue, Heterotis niloticus, which is an important component of West African inland fisheries. The study found significant differences in genetic diversity and differentiation between populations from different locations, suggesting the need for distinct genetic stock management.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Applied
Amalia Ferreira, Thiago Cahu, Jinchuan Xu, Andreas Blennow, Ranilson Bezerra
Summary: A raw starch digesting ?-amylase, AMY-T, was identified in the intestine of Nile tilapia. It showed high catalytic efficiency and adsorption towards various carbohydrates, with stable endo-activity under a wide range of pH and solvent conditions. Characterization revealed the end products of raw starch hydrolysis and the catalytic attack pattern on starch granules, suggesting high potential for industrial use.
Article
Agriculture, Dairy & Animal Science
Rodrigue Yossa, Alexander M. Greiling, Rose Komugisha Basiita, Masautso E. Sakala, Wes A. Baumgartner, Adam Taylor, Delbert M. Gatlin
Summary: The study found that gradually replacing fishmeal protein with DY-Pro did not significantly impact the weight gain or gut characteristics of Nile tilapia, but did improve feed and nutrient utilization. Additionally, DY-Pro had no negative effects on the gastrointestinal tract and could potentially reduce feed costs by improving feed efficiency.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2021)
Review
Fisheries
Angelica Priscila do Carmo Alves, Ana Paula Peconick, Brunno da Silva Cerozi, Jose Eurico Possebon Cyrino
Summary: This review summarizes recent findings on the role of probiotics in the immunity of Nile tilapia, addressing various immunological parameters and aiming to promote research efforts on effective strategies for probiotic use in the tilapia farming industry.
AQUACULTURE INTERNATIONAL
(2022)
Article
Fisheries
Aldo Felipe Fava, Gildete de Souza Bezerra, Dacley Hertes Neu, Fabio Bittencourt, Altevir Signor, Kerolay Valadao Carvalho, Ricacio Luan Marques Gomes, Wilson Rogerio Boscolo
Summary: This study assessed the feeding frequency for tilapia fingerlings and found that feeding 5 to 6 times a day resulted in better zootechnical performance and partial revenue.
AQUACULTURE NUTRITION
(2022)
Article
Environmental Sciences
Samah S. Oda, El-Sayed M. El-Manakhly, Mohamed A. Abou-Srag, Hossam G. Tohamy
Summary: The study revealed that carbofuran and copper sulfate have a negative impact on the reproductive function of male Nile tilapia, with their combination showing a stronger harmful effect. Exposure to these chemicals led to testicular damage, reduced sperm quality and quantity in male Nile tilapia.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Fisheries
Morteza Yousefi, Seyyed Morteza Hoseini, Robilson Antonio Weber, Eduardo Da Silva, Hamid Rajabiesterabadi, Mohammad Arghideh, Fatemeh Hosseinpour Delavar
Summary: This study aimed to evaluate the effects of different concentrations of salt added in the transportation water on the stress and antioxidant parameters of Nile tilapia during transportation. The results showed that adding 4 g/L salt can reduce stress response, hepatic damage, oxidative stress, and hydromineral imbalance in Nile tilapia during transportation.
AQUACULTURE REPORTS
(2022)
Article
Environmental Sciences
Genevieve Diedericks, Heleen Maetens, Maarten Van Steenberge, Jos Snoeks
Summary: Despite natural overlapping ranges, hybridization between O. niloticus and O. leucostictus appears to be rare within the Lake Edward-George system, suggesting that native populations of these two species may serve as suitable broodstock for future aquaculture strains.
JOURNAL OF GREAT LAKES RESEARCH
(2021)
Article
Environmental Sciences
Larissa Souza Passos, Levy Carvalho Gomes, Tatiana Miura Pereira, Helen Sadauskas-Henrique, Giorgi Dal Pont, Antonio Ostrensky, Ernani Pinto
Summary: The study revealed weak mutagenic response of the cyanobacterium in the Ames test but various negative effects on fish, including oxidative stress, enzyme inhibition, micronucleus formation, and osmoregulatory disorders. No guanitoxin accumulation was detected in fish tissues, highlighting the need for regulation and monitoring of this toxin in freshwater ecosystems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Lilian Dalago Salgado, Antonio Ernesto Meister Luz Marques, Rafael Duarte Kramer, Fernando Garrido de Oliveira, Sarah Lott Moretto, Barbara Alves de Lima, Maritana Mela Prodocimo, Marta Margarete Cestari, Julio Cesar Rodrigues de Azevedo, Helena Cristina Silva de Assis
Summary: This study focused on the Estuarine-Lagoon Complex of Iguape-Cananeia in Brazil, exploring the relationship between external levels of contaminants and toxic effects on Gobioides broussonnetii fish. It found higher contamination near urban centers, low to moderate metal concentrations, low PAHs concentrations, and increased PPCPs concentrations due to human activities. The study also revealed that metals and PPCPs were more concentrated during the cold-dry season, while PAHs concentrations were higher in the hot-rainy season, suggesting different influences on fish biology.
ENVIRONMENTAL RESEARCH
(2021)
Review
Environmental Sciences
Manuela S. Santana, Leonardo Sandrini-Neto, Maikon Di Domenico, Maritana Mela Prodocimo
Summary: Fish cholinesterases (ChEs) such as acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) are sensitive to a variety of toxicants, making them common biomarkers for environmental contamination. In a systematic review and meta-analysis, it was found that BChE response was more variable than AChE regardless of tissue. Factors such as fish size and life stage influenced ChEs variability and mean activity, with insecticides showing stronger inhibitory effects compared to herbicides and fungicides.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Maiara Vicentini, Leticia da Silva Pereira Fernandes, Antonio Ernesto Meister Luz Marques, Flavio Henrique Tincani Osorio, Loana Mara Baika, Wagner Ezequiel Risso, Claudia Bueno dos Reis Martinez, Marco Tadeu Grassi, Luiz Fernando Favaro, Maritana Mela, Marta Margarete Cestari, Helena Cristina Silva de Assis
Summary: The study found that cadmium may have potential effects on the female reproductive regulation axis HPGL of the Neotropical species Rhamdia quelen. Although no significant changes were observed in hormone levels and reproductive indicators after 15 days of cadmium exposure, the metal was detected at higher concentrations in the liver compared to the gonads, and oxidative stress was present to some extent.
Article
Environmental Sciences
Joelma Leao-Buchir, Nilce Mary Turcatti Folle, Tugstenio Lima de Souza, Patricia Manuitt Brito, Elton Celton de Oliveira, Aliciane de Almeida Roque, Wanessa Algarte Ramsdorf, Luis Fernando Favaro, Juan Ramon Esquivel Garcia, Luise Esquivel, Francisco Filipak Neto, Ciro Alberto de Oliveira Ribeiro, Maritana Mela Prodocimo
Summary: The study evaluated the effects of BDE-47 on the health of Oreochromis niloticus fish, showing impacts on hormone levels, visceral and reproductive organ indices, as well as damage to antioxidant enzyme activity. The use of multiple biomarkers in ecotoxicology studies and biomonitoring programs is essential for comprehensive assessment of environmental contaminants like BDE-47.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2021)
Article
Environmental Sciences
Damaso Angel Rubio-Vargas, Ciro Alberto de Oliveira Ribeiro, Francisco Filipak Neto, Alessandro Lick Cordeiro, Marta Margarete Cestari, Amanda Camara de Souza, Cesar de Castro Martins, Cleber Pinto da Silva, Sandro Xavier de Campos, Juan Ramon Esquivel Garcia, Maritana Mela Prodocimo
Summary: Urban sewage is a major source of contamination in aquatic systems, impacting the health of fish. Juvenile Oreochromis niloticus are susceptible to polluted waters from Iguacu River, making them a potential indicator species for water quality assessment.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2021)
Review
Environmental Sciences
Manuela S. Santana, Gabriel Domingues de Melo, Leonardo Sandrini-Neto, Maikon Di Domenico, Maritana Mela Prodocimo
Summary: Pesticides can cause oxidative stress and damage to the biotransformation system in fish and other organisms. Ethoxyresorufin-O-deethylase (EROD), glutathione S-transferase (GST), catalase (CAT), superoxide dismutase (SOD) activities, and levels of reduced glutathione (GSH) are biomarkers that indicate the interaction between toxicants and drug-metabolizing and antioxidant systems. The study found that pesticides increase EROD activity regardless of the life stage of fish. In exposed juveniles, CAT and GST variability decreased and increased, respectively. CAT activity was higher in females, while EROD and GST activities increased in males after pesticide exposure. Organophosphorus (OPs) and organochlorine insecticides, along with imidazole and triazole fungicides, had the largest impact on the biomarkers.
Article
Environmental Sciences
Rafael Shinji Akiyama Kitamura, Maiara Vicentini, Maiara Carolina Perussolo, Juliana Roratto Lirola, Camilla Freitas Cirilo dos Santos, Julio Cesar Moreira Brito, Marta Margarete Cestari, Maritana Mela Prodocimo, Marcelo Pedrosa Gomes, Helena Cristina Silva de Assis
Summary: This study investigated the sublethal effects of short-term exposure to different concentrations of Ciprofloxacin on Neotropical catfish. The results showed that Ciprofloxacin caused genotoxicity and adverse effects on hematological and histopathological parameters in the fish. These findings highlight the need for attention and monitoring of Ciprofloxacin concentrations in aquatic environments.
ENVIRONMENTAL POLLUTION
(2022)
Article
Environmental Sciences
Zina Bencheikh, Wahid Refes, Patricia Manuitt Brito, Maritana Mela Prodocimo, Paloma Kachel Gusso-Choueri, Rodrigo Brasil Choueri, Ciro Alberto de Oliveira Ribeiro
Summary: Chronic exposure to multiple pollutants can harm aquatic organisms and impact fishery activities along the Algerian coastline. The health of fish can be assessed using indicators such as hepatosomatic index, gonadosomatic index, and condition factor. The presence of toxic metals and polycyclic aromatic hydrocarbons in water and sediment explains the decline in fish health and fishery production. Histopathological damage in the liver and factor analysis further highlight the risks of exposure to biota or human populations.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Anatomy & Morphology
Pedro Henrique dos Santos Dias, Barbara Caroline Marcondes, Tiago Leite Pezzuti, Florencia Vera Candioti, Katyuscia Araujo-Vieira, Maritana Mela Prodocimo, Helio Ricardo da Silva, Victor Goyannes Dill Orrico, Alexander Haas
Summary: Dendropsophini is a controversial clade with uncertain classification and evolutionary history. This study examines the internal morphology of Xenohyla tadpoles and identifies some synapomorphies in Dendropsophini, which contribute to our understanding of its evolution and diversity.
Article
Ecology
Tugstenio L. Souza, Tobias P. P. de Morais, Francisco Filipak Neto, Iracema Opuskevitch, Fernando C. A. S. Ferreira, Marco Antonio Ferreira Randi, Ciro Alberto de Oliveira Ribeiro, Claudemir de Souza, Maritana Mela Prodocimo
Summary: Aquatic biota is facing increased exposure to chemical pollutants from human activities, and the relationship between environmental pollution and fish reproduction is an ongoing concern. Vitellogenin (Vtg) is a biomarker used to assess xenoestrogen exposure in fish, and this study provides the first physicochemical characterization of Vtg from Oreochromis niloticus. The findings reveal important structural differences between two chemical forms of Vtg (VtgAb and VtgC) and contribute to the development of ecotoxicological immunoassays for studying endocrine disruption and fish reproduction.
Article
Environmental Sciences
Sheila Gabriel Santos, Marilia Cristina Oliveira Souza, Fernando Barbosa-Junior, Maritana Mela Prodocimo, Fellip Rodrigues Marcondes, William Almeida, Marta Margarete Cestari, Luciana Rodrigues Souza-Bastos, Anderson Joel Martino-Andrade, Izonete Cristina Guiloski
Summary: This study evaluated the toxic effects of DiPeP on Danio rerio at environmentally relevant concentrations and found that it affected the antioxidant system in the liver, intestine, brain, and gills. DNA damage, cell boundary loss, vascular congestion, necrosis, and presence of immune cells were observed. Furthermore, DiPeP was found in muscle tissue in a concentration-dependent manner.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Joelma Leao-Buchir, Tugstenio Lima de Souza, Claudemir de Souza, Luis Fernando Favaro, Patricia Manuitt Brito, Milena Carvalho Carneiro, Bruna Hilzendeger Marcon, Luise Esquivel, Ciro Alberto de Oliveira Ribeiro, Maritana Mela Prodocimo
Summary: The study investigated the effects of BDE-99 on Oreochromis niloticus, and found that it caused histopathological changes in the liver and kidney, increased acetylcholinesterase activity in muscle, disrupted the antioxidant system in the liver and brain, and decreased plasmatic levels of vitellogenin in females.
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2023)
Article
Environmental Sciences
Rafael Shinji Akiyama Kitamura, Maiara Vicentini, Vitoria Bitencourt, Taynah Vicari, Welton Motta, Julio Cesar Moreira Brito, Marta Margarete Cestari, Maritana Mela Prodocimo, Helena Cristina Silva de Assis, Marcelo Pedrosa Gomes
Summary: This study evaluated the toxicological safety of ciprofloxacin-contaminated water treated with Salvinia molesta and studied the potential of phytoremediation for reducing drug accumulation in fishes. Fish exposed to untreated water showed toxic responses and accumulated ciprofloxacin at concentrations unsafe for human consumption, while fish exposed to water treated with S. molesta showed no toxic effect and no ciprofloxacin accumulation. This highlights the potential of phytoremediation as an efficient solution to prevent the toxic effects of antimicrobials and ensure safe consumption by humans.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Paola Caroline Nagamatsu, Damaso Angel Rubio Vargas, Maritana Mela Prodocimo, Iracema Opuskevitch, Fernando C. A. S. Ferreira, Nilson Zanchin, Ciro Alberto de Oliveira Ribeiro, Claudemir de Souza
Summary: The distribution of aquatic ecosystems affected by toxic metals is global, highlighting the importance of a more accessible and efficient method for early metal exposure warning signs. Antibodies produced from a fish MT synthetic gene show promising potential as a biomonitoring tool in detecting hepatic MT in freshwater fishes.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
