Article
Ecology
Rita L. Grunberg
Summary: The study investigated the concordance of community similarity patterns among parasites, fish hosts, and environmental factors. It found concordance in community composition patterns between parasites and fish hosts, but not in community abundance patterns. Additionally, concordance was observed between fish communities and the physical river environment.
FRESHWATER BIOLOGY
(2021)
Review
Fisheries
Luciana A. A. Pereira, Leandro Castello, Donald J. J. Orth, Fabrice Duponchelle, Eric M. M. Hallerman
Summary: Species of the genus Pseudoplatystoma play important roles in commercial and recreational fisheries in South America, and some are key to regional aquaculture. The genus includes eight species distributed in four river basins. Their life histories and ecologies vary, with some degree of genetic differentiation among populations, indicating the need for conservation management.
Article
Environmental Sciences
Sara E. Gallego R, Gustavo A. Penuela, Emma Martinez-Lopez
Summary: The study found that ibuprofen and triclosan at concentrations of 25 and 50 μg/L can affect P. magdaleniatum, interfering with the activity of certain enzymes. The quantification of ibuprofen and triclosan concentrations in P. magdaleniatum muscle samples from different markets along the main rivers of Colombia revealed that triclosan levels in some sampling points during the dry season may lead to enzyme-level alterations in this species.
Article
Multidisciplinary Sciences
Marialetizia Palomba, Pietro Libro, Jessica Di Martino, Xavier Roca-Gerones, Armando Macali, Tiziana Castrignano, Daniele Canestrelli, Simonetta Mattiucci
Summary: This study generated a de novo transcriptome of the Antarctic anisakid Contracaecum osculatum sp. D for the first time, providing a valuable resource for future research on the genomic architecture of thermal tolerance and metabolic pathways related to temperature stress.
Article
Environmental Sciences
Sara E. Gallego-Rios, Victor Julio Atencio-Garcia, Gustavo Antonio Penuela
Summary: The study revealed that ibuprofen at a concentration of 50 μg/L can significantly reduce sperm quality in P. magdaleniatum, posing a threat to the reproduction of this endangered species.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Fisheries
Flavio F. Ribeiro, Maria C. Portella
Summary: This study investigated the biological basis of cannibalism in the native South American fish species Pseudoplatystoma reticulatum. The study found that cannibals are able to ingest prey ranging from 77% to 85% of their own size, and the results contribute to advancing rearing technologies for native fish species.
Article
Agriculture, Dairy & Animal Science
Leticia Fantini-Hoag, Ruy Alberto Caetano Correa Filho, Jorge Antonio Ferreira Lara, Jovana Silva Garbelini, Jonathan Coimbra Carvalho, Antonio Francisco Oliveira, Cristiane Meldau de Campos, Terry Hanson, Jayme Aparecido Povh
Summary: This study compared the processing yield and meat quality characteristics of cachara and the cachapinta hybrid raised in net cages, and found no significant differences in these aspects between the two groups.
ITALIAN JOURNAL OF ANIMAL SCIENCE
(2022)
Article
Multidisciplinary Sciences
Teuku Haris Iqbal, Sukree Hajisamae, Apiradee Lim, Sitthisak Jantarat, Wen-Xiong Wang, Karl W. K. Tsim
Summary: This study examined the feeding habits of four-finger threadfin fish and its diet relationship with other fish species in the tropical coastal regions of Thailand. The results showed that the diet composition of threadfin fish varied with their size and ontogeny, and it also shared food resources with other co-existing fish species. Additionally, the size, sex, and collection location of the fish significantly affected their gut fullness index and the number of food types they consumed.
Article
Parasitology
V. Roca, F. Gomez-Ramirez, I. Espasandin, R. Megia-Palma, A. Perera, F. Martinez-Freiria
Summary: The helminth fauna in the gut contents of Iberian adders, Vipera seoanei, was studied in relation to biological and eco-geographic factors. A total of 317 preserved stomach and intestine samples were examined, covering the species' distributional range. Similar to other Vipera species in the Iberian Peninsula, the helminth fauna in V. seoanei was impoverished, but unlike Vipera species from Central and East Europe, helminths were mostly found in adult vipers and occurred in vipers at the periphery of the species range characterized by specific environmental conditions.
PARASITOLOGY RESEARCH
(2023)
Article
Fisheries
Diana Castro-Ruiz, Karl B. Andree, Eva Blondeau-Bidet, Christian Fernandez-Mendez, Carmen Garcia-Davila, Enric Gisbert, Maria J. Darias
Summary: The study provides insights into the molecular ontogeny of digestive system in an important Amazonian fish species, contributing to the development of feeding strategies in South American aquaculture diversification.
Article
Biodiversity Conservation
Daniel Luis Zanella Kantek, Cristine Silveira Trinca, Fernando Tortato, Allison Loretta Devlin, Fernando Cesar Cascelli de Azevedo, Sandra Cavalcanti, Leandro Silveira, Selma Samiko Miyazaki, Peter Gransden Crawshaw Junior, Joares Adenilson May-Junior, Carlos Eduardo Fragoso, Leonardo Rodrigues Sartorello, Lilian Elaine Rampim, Mario B. Haberfeld, Gediendson Ribeiro de Araujo, Ronaldo Goncalves Morato, Eduardo Eizirik
Summary: Habitat loss and fragmentation pose significant threats to carnivores worldwide, particularly to large predators. Through the use of microsatellite markers and field data, this study found that jaguars in the Pantanal represent a panmictic population with some local differentiation, and that the Paraguay River plays a crucial role in promoting gene flow among populations. Genetic evidence of female philopatry and male-biased dispersal in jaguars was reported for the first time, along with the first timeline pedigree and direct estimate of the species' generation time, contributing to more realistic assessments of jaguar population dynamics and long-term genetic viability for improved conservation strategies.
BIOLOGICAL CONSERVATION
(2021)
Review
Environmental Sciences
Shuping Wang, Zhenguang Yan, Bernd Hanfling, Xin Zheng, Pengyuan Wang, Juntao Fan, Jianlong Li
Summary: Fish environmental DNA (eDNA) studies have advanced significantly over the past decade, providing valuable insights for monitoring fish populations. Despite existing reviews on eDNA, a systematic review on methodology and applications of fish eDNA in ecology and environment is lacking. This review presents a comprehensive analysis of fish eDNA literature, discusses relevant experiments, and highlights the potential impact of eDNA technology on global conservation efforts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Editorial Material
Biodiversity Conservation
Daniel C. Carvalho, Cecilia G. Leal
Summary: The paper by Coutant et al. (2022) is an important advancement in understanding the species distribution patterns and drivers of biodiversity in the Neotropical realm, particularly in the Amazon. By quantifying the contribution of environmental and anthropogenic factors, the study provides valuable insights for future monitoring programs and identifies priority areas for conservation.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Ecology
Paula Isla Martins, Liz Barreto Coelho Belem, Judit Kriszta Szabo, Renata Libonati, Leticia Couto Garcia
Summary: In 2020, fires in the Pantanal, the world's largest continuous tropical wetland, caused significant damage to the ecosystem. Scientifically informed actions are necessary to prevent future catastrophic fires. A study has identified areas of high fire risk and proposed fire prevention and restoration measures, including passive restoration and active restoration.
ECOLOGICAL ENGINEERING
(2022)
Article
Biodiversity Conservation
Felipe Pereira Bisaggio, Lennon de Souza Malta, Fernando Paiva, Carina Elisei, Luiz Eduardo Roland Tavares
Summary: This study evaluated the parasite community of Gymnogeophagus balzanii for the first time, finding ten taxa including nematodes, digenea, copepods, and monogenea. The community had low richness, diversity, and evenness, with few specialist species and several generalists dominating. Host size and weight, as well as sex, were strong determinants of the parasite community. The parasites did not affect host body condition, but the presence of Clinostomum metacercariae is important for human health issues.
JOURNAL OF NATURAL HISTORY
(2023)
Article
Biology
Janaina Freitas Freire, Andre Mota Alves, Luiz Eduardo Roland Tavares, Claudia Moura de Melo, Veronica de Lourdes Sierpe Jeraldo, Ricardo Massato Takemoto, Rubens Riscala Madi
Summary: This study reported the first occurrence of Cybicola buccatus in the Spanish mackerel Scomberomorus brasiliensis in northeastern Brazil, providing a new record for the local parasite fauna. The presence of these parasites is important for researchers to further understand the distribution of this copepod and the parasitic fish fauna along the Brazilian coast.
Article
Parasitology
Philippe Alves, Alain de Chambrier, Jose L. Luque, Ricardo M. Takemoto, Luiz E. R. Tavares, Tomas Scholz
Summary: This study investigated tapeworms in pimelodid and other catfishes from South America using DNA sequencing, revealing their phylogenetic relationships and revising their classification. The study also corrected misidentification of tapeworm sequences deposited in the GenBank database.
PARASITOLOGY RESEARCH
(2021)
Review
Fisheries
Elida Jeronimo Gouveia, Lidiany Doreto Cavalcanti, Ricardo Massato Takemoto
Summary: This review summarizes studies of acanthocephalans in Brazilian fish farms, discussing histopathological and hematological implications of infection and various treatments for combating these parasites. Essential oils, oleoresins, and plant extracts have shown efficacy in early testing against acanthocephalans, suggesting potential use in commercial fish farms with recommended management practices outlined in the study.
AQUACULTURE RESEARCH
(2021)
Article
Engineering, Environmental
Atsler Luana Lehun, Amanda Brixner Mendes, Ricardo Massato Takemoto, Ana Carolina de Deus Bueno Krawczyk
Summary: The study analyzed the potential genotoxic effects of water quality in the Iguacu River on Astyanax bifasciatus and Geophagus brasiliensis, with higher nuclear abnormalities observed in fish erythrocytes at points with more environmental impact.
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
(2021)
Article
Parasitology
Atsler Luana Lehun, Lidiany Doreto Cavalcanti, Maria de los Angeles Perez Lizama, Joao Otavio Santos Silva, Guilherme Pomaro Casali, Ricardo Massato Takemoto
Summary: This study evaluated the change in the endoparasite community of Prochilodus lineatus between two periods sampled 15 years apart in the Upper Parana River floodplain. The construction of dams had impacts on both the host and parasites, resulting in changes in parasite composition, and a correlation between environmental changes and parasite diversity and abundance was observed.
JOURNAL OF HELMINTHOLOGY
(2022)
Article
Parasitology
Aparecida de Fatima Cracco, Atsler Luana Lehun, Ricardo Massato Takemoto
Summary: This study analyzed the distribution and structure of the parasitic infracommunity of six species of Hypostomus from the Ivai River. The results showed that the parasites exhibited similar infection patterns in all hosts, but there were differences in parasite species composition among different hosts. Hypostomus cochliodon and H. regani had the highest parasite richness, while Hypostomus sp.1 and Hypostomus sp.2 showed low abundance and intensity of parasitic infections. However, Hypostomus sp.1 had the highest values of evenness. These findings contribute to the knowledge about the parasitic fauna of Hypostomus spp. from the Ivai River by presenting new hosts and locality records.
PARASITOLOGY RESEARCH
(2022)
Article
Parasitology
Mayara Destro Passere, Rodrigo Junio da Graca, Ricardo Massato Takemoto, Alessandra Valeria de Oliveira
Summary: This study molecularly characterized the digeneans found in gastropods from the Ival River in Brazil using the mitochondrial marker COI and the 28S ribosomal marker. The results showed high genetic similarity between the gastropods and Aylacostoma chloroticum using the COI marker, and identified four different taxa of parasites using both markers. The 28S ribosomal marker was more effective for identifying the parasites, suggesting the presence of two species among the four groups found. This study is the first to investigate the relationship between parasites and gastropods as intermediate hosts in the Ival River.
PARASITOLOGY RESEARCH
(2022)
Article
Fisheries
Atsler Luana Lehun, Joao Otavio Santos Silva, Gabriela Michelan, Fernando Miranda Lansac-Toha, Lidiany Doreto Cavalcanti, Ricardo Massato Takemoto
Summary: The structure of the food chain plays a crucial role in shaping the relationship between trophically transmitted endoparasites. The position and body size of each fish species in the food web can determine the presence and transmission of parasites. By analyzing a helminth dataset from 70 fish species in the upper Parana River floodplain, we found that the richness of fish parasites, both in the larval and adult stages, can be explained by body size and trophic level.
ECOLOGY OF FRESHWATER FISH
(2023)
Article
Parasitology
Lidiany Doreto Cavalcanti, Elida Jeronimo Gouveia, Gabriela Michelan, Atsler Luana Lehun, Joao Otavio Santos Silva, Wagner Toshio Hasuike, Marcia Regina Russo, Ricardo Massato Takemoto
Summary: This study analyzed the factors that affect the occurrence of the parasitic fauna D. oxycephala in Neotropical fish. It found that trophic level, position in the water column, and latitude influence the abundance of D. oxycephala. In addition, host ecological traits and latitude are also important components in the distribution and occurrence of this parasite.
PARASITOLOGY RESEARCH
(2023)
Article
Fisheries
Atsler Luana Lehun, Carolina Mendes Muniz, Joao Otavio Santos Silva, Lidiany Doreto Cavalcanti, Ricardo Massato Takemoto
Summary: In this study, the researchers investigated the predictive ability of functional traits, diet, and host phylogeny on the similarity of endoparasite composition in a fish assemblage in a Brazilian floodplain. The results showed that the host's diet had the greatest influence on the composition and similarity of endoparasites. Functional traits and phylogeny also had an effect, but to a lesser extent.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Parasitology
Lucena Rocha Virgilio, Henrique Paulo Silva de Melo, Fabricia da Silva Lima, Ricardo Massato Takemoto, Luis Marcelo Aranha Camargo, Dionatas Ulises de Oliveira Meneguetti
Summary: This study evaluated parasite communities in a tropical floodplain in Brazil. The results showed higher species diversity in conserved environments, with significant seasonal variations in detritivorous and omnivorous hosts. The endoparasite fauna of piscivorous and omnivorous hosts in conserved environments exhibited unique characteristics, indicating the conservation status of these environments.
PARASITOLOGY RESEARCH
(2023)
Article
Multidisciplinary Sciences
Atsler Luana Lehun, Gisele S. C. Duarte, Ricardo M. Takemoto
Summary: This study investigated the potential use of Geophagus brasiliensis parasites as bioindicators of environmental changes. The results showed that the parasitic community of G. brasiliensis in polluted areas has low diversity, and the species compositions vary significantly between different sampling points.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2023)
Article
Parasitology
L. R. Virgilio, W. M. O. Martins, F. S. Lima, R. M. Takemoto, L. M. A. Camargo, D. U. O. Meneguetti
Summary: This study describes the endoparasite fauna in freshwater fish from the Upper Jurua in the Western Amazon, recording a total of 23,740 endoparasites belonging to 62 species, with 91 new host reports and 91 new occurrences for the Western Amazon. Nematoda and Digenea were the most diverse and abundant groups found in the study.
JOURNAL OF HELMINTHOLOGY
(2022)
Article
Parasitology
Aparecida de Fatima Cracco, Barbara Scorsim, Alessandra Valeria de Oliveira, Ricardo Massato Takemoto
Summary: This study reports the presence of Austrodiplostomum sp. parasitizing Hypostomus fish species in the Ivai River, Brazil, based on morphological and molecular analyses.
REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA
(2022)
Article
Multidisciplinary Sciences
Juliana R. M. Ciccheto, Bruno H. M. Stabile, Thomaz M. C. Fabrin, Alessandra de Oliveira, Ricardo M. Takemoto, Rodrigo J. da Graca
Summary: This study reports the occurrence of Centrocestus formosanus in molluscs and fish in a urban park in southern Brazil, using an integrative taxonomic approach. The identification of C. formosanus in both hosts partially solved the life cycle of this parasite, highlighting the importance of monitoring and controlling molluscs populations.
ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS
(2021)
