The pygmy ( Kogia breviceps ) and dwarf ( Kogia sima ) sperm whales are cryptic cetaceans characterized by inconspicuous surfacing behavior, small group sizes, and deep‐diving habits, making visual detection particularly challenging. Here, we present the first broad‐scale passive acoustic monitoring (PAM) assessment of Kogia spp. occurrence along the Brazilian coast, spanning both the Equatorial Atlantic Ocean (EAO) and Southw...

Expanding integrative cytogenetic and molecular analyses is essential for understanding the evolutionary dynamics of chromosome number variation in fishes. This study presents the first cytogenetic characterization of Hypostomus sertanejo , an endemic species native to the semi-arid Jaguaribe River basin in Northeastern Brazil. Cytogenetic analysis revealed a diploid number of 2n = 52, which is the lowest documented for the ge...

Aquaculture effluents are increasingly recognized as a strategic resource for agricultural water reuse, especially in semi-arid regions, where water scarcity and fertilizer costs intensify pressure on production systems. Within a circular economy framework, these effluents may simultaneously supply water and nutrients; however, their physicochemical composition must be carefully assessed, since excessive salt loading may impai...

Trioza erytreae Del Guercio, 1918, commonly known as the African citrus psyllid, is one of the main vectors of Huanglongbing (citrus greening), the most destructive citrus disease worldwide. Currently, there is no effective treatment for HLB; therefore, management efforts primarily focus on controlling the insect vectors. This often involves the use of insecticides, which raises concerns about environmental impact and the deve...

Persistent organic pollutants (POPs) are widespread contaminants that bioaccumulate in the food web, posing risks to wildlife, especially top predators. This study investigates the occurrence of POPs in liver tissues of 23 Magellanic Penguins ( Spheniscus magellanicus ) stranded along the Brazilian coast from June to September 2017. We analyzed concentrations of polychlorinated biphenyls (PCBs), organochlorine pesticides (DDTs...

Tuberculosis infected 10.8 million people worldwide in 2023, resulting in 1.09 million deaths. Rifampicin (RIF) is one of the main drugs used in the treatment, but its low solubility and side effects, such as hepatotoxicity, limit its therapeutic efficacy. Polymeric nanoparticles (PNs) emerge as a promising strategy to optimize RIF delivery. This study aimed to develop RIF-PNs guided by molecular dynamics (MD), perform their p...