Related Experiment Video
Updated: May 17, 2026

Collecting Marine Gnathiid Isopod Fish Parasites with Light Traps
Published on: September 25, 2023
Parasite acquisition by larval coral-reef fishes
K Peyrusse1, P Sasal, D Lecchini
1CRIOBE, USR 3278-CNRS/EPHE, Centre de Recherches Insulaires et Observatoire de l'Environnement, BP1013 Papetoai, 98729 Moorea, French Polynesia.
Abstract:
Of 164 fish larvae belonging to 11 species sampled from the island of Moorea, French Polynesia, 30% had at least one parasite individual and parasite prevalence ranged between 0 for Chaetodon citrinellus and 80% for Parupeneus barberinus. Parasites were present only in larvae that had fed and were present in the gut but absent from gills, body cavity and muscle. Parasites appeared to be acquired by ingestion of intermediate hosts when the larvae fed on the outer slope, prior to reef colonization.

