Results 1 to 10 of about 5,964 (194)

The B Chromosomes of Prochilodus lineatus (Teleostei, Characiformes) Are Highly Enriched in Satellite DNAs [PDF]

Cells, 2021
B or supernumerary chromosomes are dispensable elements that are widely present in numerous eukaryotes. Due to their non-recombining nature, there is an evident tendency for repetitive DNA accumulation in these elements.
José Henrique Forte Stornioli, Caio Augusto Gomes Goes, Rodrigo Milan Calegari, Rodrigo Zeni dos Santos, Leonardo Moura Giglio, Fausto Foresti, Claudio Oliveira, Manolo Penitente, Fábio Porto-Foresti, Ricardo Utsunomia   +9 more
doaj   +2 more sources

Morphological and Histometric Alterations in Gonadal and Neural Tissues of Native and Non-Native Fishes From the Lower Doce River Basin in Southeastern Brazil. [PDF]

Anat Histol Embryol
ABSTRACT The ichthyofauna of the lower Doce River basin has been exposed to multiple anthropogenic stressors. Among these, the collapse of the Fundão mining tailings dam in Mariana, Minas Gerais, Brazil, in 2015 resulted in massive fish mortality and widespread contamination of aquatic environments.
Marcon L, Souza KL, Travenzoli NM, Rosa GR, de Almeida Santos ML, Ferreira WR, Coelho PN, Dos Santos JAD, Henschel E.   +8 more
europepmc   +2 more sources

A fractal pattern of hierarchical genetic population structure in mixed stocks across fish segregated by dams revealed by genomic resources for curimba Prochilodus lineatus. [PDF]

J Fish Biol
Abstract Genomic resources, new microsatellite markers and a novel observation of a fractal pattern in the genetic population structure are presented for curimba, Prochilodus lineatus, a freshwater migratory model species of South America. Our main goals were to investigate the presence of mixed fish stocks and the effects of damming‐induced ...
Yazbeck GM, Nascimento GAS, Carvalho LC, Graciano RCD, de Paula Santos R, Oliveira RS.   +5 more
europepmc   +2 more sources

Deciphering the complex life cycle and partial migration of an ecological engineer and critical Neotropical fishery species, Prochilodus costatus. [PDF]

J Fish Biol
Abstract Understanding complex migration patterns, including drivers of partial migration and habitat use, is challenging but essential for conservation, as it determines a species' adaptative capacity in the face of environmental change and anthropogenic threats.
Peressin A, de Magalhães Lopes J, Neto FRA, Machado GJ, Alves CBM, Murgas LDS, Pompeu PS.   +6 more
europepmc   +2 more sources

Findings From the Pearl River Basin: Dissolved Oxygen Dominates Functional Trait Filtering and Diversity Patterns in Urban Rivers. [PDF]

Ecol Evol
Urbanization reshapes fish communities via environmental filtering. Surveying 44 sites across an urban (Huadi) and a relatively natural (Zengjiang) river in the Pearl River Basin (2024), we linked environmental variables to fish functional traits using RLQ and SEM, finding that dissolved oxygen is the dominant filter in urban reaches—selecting low ...
Huang J, Yu F, Wang Y, Shu L, Fang M, Xu M, Wang X, Jin S, Luo S, Gu D.   +9 more
europepmc   +2 more sources

Integrated Biomarker Assessment of Bifenthrin, Chlorpyrifos and Endosulfan Toxicity in Indigenous Carps (Catla catla and Labeo rohita): Oxidative Stress, Genotoxicity and Nuclear Alterations. [PDF]

Vet Med Sci
Combined exposure to bifenthrin–chlorpyrifos and bifenthrin–endosulfan mixtures induced oxidative stress, genotoxicity and nuclear abnormalities in Catla catla and Labeo rohita. Antioxidant and DNA damage biomarkers provide sensitive tools for assessing pesticide‐related ecological risks in aquatic environments. ABSTRACT Background The extensive use of
Naz H, Abdullah S, Ahmed T, Abbas K, Ijaz MU, Ullah Q, Naz S, Khan RU, Rossi L, Ahmad S, Alonaizan R.   +10 more
europepmc   +2 more sources

Evolutionary dynamics of the B chromosomes in the fish species Prochilodus lineatus Valenciennes, 1837 of the Paraná River Basin [PDF]

Comparative Cytogenetics
The fish species Prochilodus lineatus has an interesting B chromosome system, with three morphological types as acrocentric, metacentric, and submetacentric.
Manolo Penitente, Caio Augusto Gomes Goes, Rodrigo Zeni dos Santos, Ricardo Utsunomia, Fausto Foresti, Fabio Porto-Foresti   +5 more
doaj   +4 more sources

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]

Mol Ecol
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C, Reyes-Calderón A, Venail P, Britzke R, Santa-Maria MC, Araújo-Flores JM, Silman M, Fernandez LE.   +7 more
europepmc   +2 more sources

Toxicological Effects of Lufenuron on Antioxidant Defence in Grass Carp (Ctenopharyngodon idella). [PDF]

Vet Med Sci
GRAPHICAL ABSTRACT Lufenuron exposure in grass carp disrupted antioxidant enzyme activities in a tissue‐specific manner, indicating oxidative stress. Superoxide dismutase and glutathione increased, whereas catalase and peroxidase showed organ‐dependent alterations, highlighting antioxidant enzymes as sensitive biomarkers for assessing ecotoxicological ...
Khan MS, Ghaffar A, Ullah Q, Farooq M, Jamil H, Israr M, Alhidary IA.   +6 more
europepmc   +2 more sources

Spinitectus asperus and Klossinemella iheringi , intestinal nematodes of Prochilodus lineatus (Pisces, Prochilodontidae) from the alluvial plain of the Middle Paraná River, Argentina [PDF]

Anais da Academia Brasileira de Ciências, 2022
Prochilodus lineatus has been considered an ecosystem engineer in the Neotropics given its influence on important ecosystem processes, and it is therefore relevant to understand their inter-specific relationships. The association of P.
SILVINA B. CHEMES, SILVIA H. GERVASONI, LILIANA M. ROSSI, MARÍA DE LOS ANGELES P. LIZAMA   +3 more
doaj   +1 more source