Testing non-lethal techniques for endoparasite detection and sex determination in pumpkinseed sunfish (Lepomis gibbosus).

ABSTRACT: Developing non-lethal techniques to estimate parasite infection is critical for studying disease ecology in wild animals. We tested the effectiveness of coelomic ultrasonographic examination and plasma enzyme markers to detect liver infection with bass tapeworms Proteocephalus ambloplitis (Leidy 1887) as well as the effectiveness of ultrasound in predicting fish sex based on gonad imaging ante mortem in two populations of pumpkinseed sunfish Lepomis gibbosus (L. 1758). We also conducted cytopathological and histopathological analyses on a small subset of fish to investigate the potential for these techniques to detect signs of infection and liver disease. We found that fish sex was correctly identified by ultrasound in 87% of fish screened. There was no statistically significant relationsh

SUBMITTER: Archambault M 

PROVIDER: S-EPMC12360128 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature