Article
Biotechnology & Applied Microbiology
Eduardo Sousa Varela, Michael Bekaert, Luciana Nakaghi Ganeco-Kirschnik, Lucas Simon Torati, Luciana Shiotsuki, Fernanda Loureiro de Almeida, Luciana Cristine Vasques Villela, Fabricio Pereira Rezende, Aurisan da Silva Barroso, Luiz Eduardo Lima de Freitas, John Bernard Taggart, Herve Migaud
Summary: The study generated a genetic linkage map using ddRAD sequencing from 248 individuals in two F1 families, identifying sex-linked markers and improving the tambaqui draft genome. These markers showed a significant association with phenotypic sex, supporting an XX/XY sex determination system, and demonstrated high accuracy in predicting sex in another 206 individuals. These findings offer new tools for rapid progeny sexing and support the development of monosex female production in the industry.
Article
Multidisciplinary Sciences
Jaqueline D. Biller, Edsandra C. Chagas
Summary: Tambaqui is the second most produced native fish species in Brazil, but suffers from serious sanitary problems due to prevalent parasite infections. The prevalence of these infections depends on the resistance and tolerance interactions between the hosts and parasites. The immune response against parasites is divided into innate and acquired immunity, and using immunostimulants may have positive effects on prevention and treatment.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2022)
Article
Agriculture, Dairy & Animal Science
Francisco Yan Tavares Reis, Victoria Pontes Rocha, Peter Charrie Janampa-Sarmiento, Henrique Lopes Costa, Renata Catao Egger, Naisa Cristine Passos, Carlos Henrique Santos de Assis, Sarah Portes Carneiro, Agna Ferreira Santos, Brendhal Almeida Silva, Fernanda Alves Dorella, Marcia Pimenta Leibowitz, Ronald Kennedy Luz, Felipe Pierezan, Silvia Umeda Gallani, Guilherme Campos Tavares, Henrique Cesar Pereira Figueiredo
Summary: This study assessed the antimicrobial susceptibility, pathogenicity, and genetic diversity of E. tarda isolates from tambaqui fish in Brazil. The results showed that the isolates had different antimicrobial susceptibility patterns, with some showing wild-type resistance to certain drugs. Experimental infection also revealed pathogenic effects in the fish. These findings highlight the potential impact of E. tarda on tambaqui aquaculture in the future.
Article
Fisheries
Patricia Oliveira Maciel, Elizabeth Gusmao Affonso
Summary: The study investigated the effects of Praziquantel on the hematological parameters of tambaqui and its efficacy against monogeneans, finding lower concentrations of PZQ to be more effective against specific parasites. The use of ethanol as a solvent did not significantly impact the physiology of tambaqui.
AQUACULTURE INTERNATIONAL
(2021)
Article
Environmental Sciences
Talita Laurie Lustosa do Carmo, Mayara Cristina Moraes de Lima, Jose Luiz de Vasconcelos Lima, Samara Silva de Souza, Adalberto Luis Val
Summary: Climate change affects fish appetite and metabolism, leading to changes in fish population. This study investigates the effects of climate change on gene expression levels of appetite-regulating peptides in tambaqui fish. The results reveal high expression levels of Neuropeptide Y (NPY) and Cholecystokinin (CCK) in the brain and variations in peripheral tissues. Fish exposed to extreme climate conditions showed higher NPY expression and lower CCK expression in the telencephalon, along with increased food intake and body growth. This study contributes to understanding the impact of climate change on fish and aids in conservation efforts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Fisheries
Marcio S. Ferreira, Danilo da C. Barroso, Adalberto L. Val
Summary: Research indicates that small matrinxas quickly start the anabolic process in the postprandial period, while in larger tambaqui, it occurs late but with a longer duration. Additionally, matrinxa exhibits higher basal nitrogen excretion, which increases rapidly after feeding.
AQUACULTURE RESEARCH
(2021)
Article
Fisheries
Ednara Ronise L. de Araujo, Marcelo F. Torres, Moises Hamoy, Luis Andre L. Barbas, Luis Andre Sampaio
Summary: This study evaluated the cardiotoxic effects of geraniol and citronellol in Colossoma macropomum. The results showed that both substances caused changes in the fish's ECG parameters, but geraniol had a faster recovery time compared to citronellol.
Article
Parasitology
Katherine D. Mosquera, Louise K. J. Nilsson, Marta Rodrigues de Oliveira, Elerson Matos Rocha, Osvaldo Marinotti, Sebastian Hakansson, Wanderli P. Tadei, Antonia Queiroz Lima de Souza, Olle Terenius
Summary: This study investigated the microbial communities associated with Anopheles darlingi immature forms and their breeding sites in the Coari municipality, Brazilian Amazon. The results showed that the microbiota of An. darlingi larvae is less diverse and mainly acquired from their breeding sites. Additionally, the bacterial composition of the immature mosquitoes and their breeding water varied depending on the collection sites, indicating that the environment strongly influences mosquito microbiota.
PARASITES & VECTORS
(2023)
Article
Fisheries
Luana Rodrigues Vieira, Yago Luiz Gonsalves Pereira, Laura Andrade Diniz, Chirlene Pinheiro Nascimento, Alex Luiz Mendesda Silva, Julianne Elba Cunha Azevedo, Vanessa Joia de Mello, Nilton Akio Muto, Luis Andre Luz Barbas, Moises Hamoy
Summary: The study investigated the behavior and physiological responses of tambaqui fish (C. macropomum) to different concentrations of lidocaine hydrochloride in immersion baths and after transfer to anesthetic-free water. The results showed that the fish exhibited loss of the righting reflex and significant muscle relaxation upon exposure to lidocaine hydrochloride. Higher concentrations also caused a decreased heart rate and altered T wave tracing. However, the reversible nature of these responses suggests that lidocaine hydrochloride can be safely used as an alternative anesthetic for tambaqui fish.
Article
Biochemistry & Molecular Biology
Lieschen V. G. Lira, Vito A. Mastrochirico-Filho, Natalia J. Mendes, Raquel B. Ariede, Jose M. Yanez, Diogo T. Hashimoto
Summary: This study aimed to identify QTL associated with resistance to I. multifiliis in tambaqui using GWAS. Genomic analysis of individuals from seven families revealed four SNPs significantly associated with time of death and parasite load. These SNPs were close to 11 immune system related genes, indicating a polygenic control of resistance to I. multifiliis in tambaqui.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Chemistry, Applied
Maria Ines Braga de Oliveira, Franmir Rodrigues Brandao, Maria Juliete Rocha da Silva, Marcio Carvalho Rosa, Caio Francisco Santana Farias, Daniel Silva dos Santos, Claudia Majolo, M. R. D. Oliveira, Francisco Celio Maia Chaves, Humberto Ribeiro Bizzo, Marcos Tavares-Dias, Edsandra Campos Chagas
Summary: The study evaluated the anthelmintic efficacy of essential oils from ten plants against Neoechinorhynchus buttnerae. Mint, oregano, hierba santa, white and red morphotypes of cajucara, basils, and pepper showed lower EC50 values and 100% anthelmintic efficacy in vitro. Exposure to Aloysia triphylla essential oil caused damage to the integument of helminths, leading to edema, formation of bubbles, body swelling, increased pseudocoelom volume, and degeneration of reproductive organs.
JOURNAL OF ESSENTIAL OIL RESEARCH
(2021)
Article
Fisheries
Luanna do Carmo Neves, Andre Lima Ferreira, Gisele Cristina Favero, Suzane Lilian Beier, Glauber David Almeida Palheta, Nuno Filipe Alves Correia de Melo, Ronald Kennedy Luz
Summary: This study evaluated the physiological responses of juvenile Colossoma macropomum exposed to air for different periods of time. Results showed that air exposure time had varying effects on hematocrit, hemoglobin, glucose, lactate, blood pH, venous carbon dioxide partial pressure, venous oxygen partial pressure, bicarbonate, chloride, potassium, sodium, and calcium levels. Despite these changes, the juvenile fish were able to restore their physiological functions, indicating their resistance to this stress.
Article
Fisheries
Suzana Kotzent, Silvia Umeda Gallani, Gustavo Moraes Ramos Valladao, Lindomar de Oliveira Alves, Fabiana Pilarski
Summary: This study identified and characterized six potential probiotic strains for inclusion in the diet of tambaqui Colossoma macropomum, including Enterococcus faecalis, Enterococcus hirae, Lactococcus lactis, Pediococcus pentosaceus, Staphylococcus hominis, and Staphylococcus saprophyticus. These probiotic strains showed resistance against bile salts and antagonistic activity against a fish pathogen, Lactococcus garvieae.
AQUACULTURE RESEARCH
(2021)
Article
Fisheries
Sidney dos Santos Silva, Luanna do Carmo Neves, Gisele Cristina Favero, Hugo Napolea Pereira da Silva, Bernardo Baldisserotto, Glauber David Almeida Palheta, Nuno Filipe Alves Correia Melo, Ronald Kennedy Luz
Summary: This study evaluated the response of juvenile Colossoma macropomum to oxidative stress when exposed to air for different periods of time. The results showed that exposure to air caused changes in the antioxidant defense systems in the liver, kidney, brain, and gills of the fish.
Article
Marine & Freshwater Biology
Samara Silva de Souza, Jonatas da Silva Castro, Derek Felipe Campos, Rogerio Santos Pereira, Giovana Anceski Bataglion, Grazyelle Sebrenski da Silva, Vera Maria Fonseca de Almeida-Val
Summary: In this study, tambaqui fish were exposed to sublethal concentrations of malathion for 6, 12, 24, 36, and 48 hours. Contrary to expectations, there was no acetylcholinesterase activity inhibition, indicating an absence of neurotoxicity. The Phase II biotransformation mechanism was activated early, while oxidative damage was evident in the beginning of exposure and was concurrent with the activation of antioxidant enzymes. Mitochondrial bioenergetics were differentially affected by the length of exposure.
AQUATIC TOXICOLOGY
(2021)
Article
Biodiversity Conservation
Celio Magalhaes, Rafael Robles, Edvanda A. Souza-Carvalho, Fabricio L. Curvalho, Jose Celso de Oliveira Malta, Fernando L. Mantelatto
PROCEEDINGS OF THE ACADEMY OF NATURAL SCIENCES OF PHILADELPHIA
(2020)
Article
Biology
German Augusto Murrieta Morey, Jose Carlos Zumaeta Cachique, Juan Justo Sanchez Babilonia
Article
Fisheries
Norma L. S. Rivadeneyra, Omar Mertins, Ruben C. Cuadros, Jose C. O. Malta, Lorena V. de Matos, Patrick D. Mathews
AQUACULTURE INTERNATIONAL
(2020)
Article
Fisheries
Ruben C. Cuadros, Norma L. S. Rivadeneyra, Anai Flores-Gonzales, Omar Mertins, Jose C. O. Malta, M. Enrique Serrano-Martinez, Patrick D. Mathews
Summary: The study identified the parasitic infection of R. rondoni nematode in farmed red-bellied pacu in the Peruvian Amazon, causing histopathological alterations in the intestinal tissue. These alterations include villi fusion, edema, and disorganization of epithelial cells. The findings highlight the importance of improving parasitic prevention and control strategies to prevent future disease outbreaks.
AQUACULTURE INTERNATIONAL
(2021)
Article
Parasitology
German Augusto Murrieta Morey, Luis Garcia Sol Sol, Jose Carlos Zumaeta Cachique
Summary: Five species of Anacanthorus parasites were discovered on the gills of Brycon amazonicus in the Peruvian Amazon, with four of them being newly described in this study. Each species has distinct characteristics in their accessory pieces, hooks, and MCO structures.
SYSTEMATIC PARASITOLOGY
(2021)
Article
Parasitology
German Augusto Murrieta Morey, G. A. Murrieta Morey
Summary: In a study on gill ectoparasites of callichthyids fishes from the Peruvian Amazonia, three new monogenean species were discovered, differentiated primarily based on the morphology of the copulatory complex. The new species reported in this study are the first of the Philocorydoras genus reported for Peru.
SYSTEMATIC PARASITOLOGY
(2021)
Article
Parasitology
Mayra da Silva Goncalves, Oscar Tadeu Ferreira da Costa, German Augusto Murrieta Morey, Lucas Castanhola Dias, Edsandra Campos Chagas, Sanny Maria de Andrade Porto
Summary: The study provides a detailed description of the embryonic development stages of N. buttnerae eggs and a stereological evaluation of the body of adult females of the parasite. These results are crucial for supporting future research aiming to interrupt the life cycle of this parasite.
Correction
Parasitology
German Augusto Murrieta Morey
SYSTEMATIC PARASITOLOGY
(2021)
Article
Parasitology
German Augusto Murrieta Morey, Carlos Alfredo Tuesta Rojas, Gino Andres Rengifo Marin, Carlos Tobias Chuquipiondo Guardia
Summary: The present study reports the occurrence of Eustrongylides sp. in some neotropical fish species commercialized in the Peruvian Amazonia. The study found larvae L4 of Eustrongylides sp. in the host body, muscle, and visceral cavity of the studied fish species, causing significant damage in some of them. This study contributes to understanding the distribution of this parasite in the Peruvian Amazon and highlights potential public health concerns.
ACTA PARASITOLOGICA
(2022)
Article
Fisheries
German Augusto Murrieta Morey, Carlos Alfredo Tuesta Rojas, Lorena Leonor Orejuela Espinoza, Jeffson Nobre Pereira
Summary: The present study aimed to describe the life cycle of the branchiuran Dolops discoidalis in order to contribute to the knowledge of the biology of this parasite and for future studies focused on its prevention and control in fish farming. The life cycle of D. discoidalis from egg laying to juvenile hatching lasted 23 days. This research is important for aquaculture activities in the Peruvian Amazon.
Article
Parasitology
Sofia Galvao Feronato, Emanuel Razzolini, German Augusto Murrieta Morey, Walter A. Boeger
Summary: A new fish species, Cosmetocleithrum falsunilatum sp. n., is described in this study, which shows significant morphological differences from other members of the Cosmetocleithrum genus. The male copulatory organ of the new species closely resembles that of Unilatus spp. Phylogenetic analysis suggests that Cosmetocleithrum can be divided into two basal clades, one of them including the new species and C. trachydorasi.
SYSTEMATIC PARASITOLOGY
(2022)
Review
Green & Sustainable Science & Technology
Felipe Lourenco, Ricardo Calado, Isabel Medina, Olga M. C. C. Ameixa
Summary: Using alien insect species as food and feed can address protein shortage and promote sustainable feed production, but their invasive potential needs to be considered due to its threat to biodiversity. While the European Union has authorized eight insect species for use as feed ingredients, the risk assessments have mostly focused on northern European regions. Some of these insect species have invasive potential and can negatively affect local ecosystems and cause economic losses. It is recommended to conduct risk assessments and monitoring programs in other EU regions, and also consider native insect species as alternative feed ingredients.
Article
Parasitology
German Augusto Murrieta Morey, Carlos Alfredo Tuesta Rojas, Jose Carlos Zumaeta Cachique
Summary: This study describes a new species of Cosmetocleithrum that parasitizes fishes of the genus Anadoras in Peru. The male copulatory organ and vagina of the new species show morphological uniqueness among members of Cosmetocleithrum.
SYSTEMATIC PARASITOLOGY
(2022)
Article
Fisheries
German Augusto Murrieta Morey, Carlos Alfredo Tuesta Rojas, Luciano Alfredo Rodriguez Chu, Harvey Satalaya Arellano, Gabriela Sandy Culcos Figeroa
Summary: This study presents a list of Monogenoidea species and their fish-hosts used in aquaculture in the Peruvian Amazonia, including 48 species in total.
Article
Parasitology
German Augusto Murrieta Morey, Carlos Alfredo Tuesta Rojas, Jusimara Garcia Panduro
Summary: During a research on gills ectoparasites of callichthyids fishes from the Peruvian Amazonia, several new species of monogenoideans were discovered and differentiated from their congeners based on the morphology of the copulatory complex.
SYSTEMATIC PARASITOLOGY
(2022)