Realistic nitrate concentrations diminish reproductive indicators in Skiffia lermae, an endemic species in critical endangered status.

ABSTRACT: Goodeinae is a subfamily of critically endangered fish native to central Mexico. Populations of Skiffia lermae, a species belonging to this subfamily, have significantly decreased in the past two decades. A previous study showed that S. lermae is sensitive to acute nitrate-nitrogen (NO₃-N) exposure, leading to noticeable changes in both behavioral and histopathological bioindicators. The aim herein was to determine the vulnerability of S. lermae to NO₃-N exposure at realistic concentrations registered in freshwater ecosystems in central Mexico where the species was historically reported. Offspring of S. lermae were chronically exposed during 60 days to concentrations of 5, 10 and 20 mg NO₃-N/L, with 2 mg NO₃-N/L used a

SUBMITTER: Villa-Villasenor IM 

PROVIDER: S-EPMC11391940 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature