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. 2016 Jun 15;6:27929. doi: 10.1038/srep27929

Figure 1. Gill lesions in fish exposed to Pelagia noctiluca.

Figure 1

(a) Control fish gills with unaltered primary lamellae (pl) with mucous cells (mc) and elongated secondary lamellae (sl) with flat epithelial cells (ep) and pillar cells (pc), (400×); (b–e). Pathological features in fish gills from the treatment groups after 8 h exposure to jellyfish (400×): (b) Hyperplasia of primary lamella; (c) Moderate lifting of epithelial cells (*) and cellular degeneration (arrows); (d) Absence of respiratory epithelium and loss of structure.