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Updated: Sep 16, 2026

Colonization of Euprymna scolopes Squid by Vibrio fischeri
Published on: March 1, 2012
First report of an endoparasitic epicaridean isopod infecting cephalopods
Santiago Pascual1, Marco Antonio Vega, Francisco José Rocha
1Laboratorio de Parasitología, Facultad de Ciencias del Mar, Universidad de Vigo, 36200 Vigo, España. spascual@uvigo.es
Abstract:
This is the first report of an epicaridean isopod infecting cephalopods. Three cryptoniscus larvae (Isopoda, Epicaridea) were recognized externally and found entirely embedded in the oral bulb at the beginning of the esophagus of two female Patagonian squid (Loligo gahi) sampled in North Peruvian and South Chilean waters, respectively. There was an extremely low prevalence (< 2%) and mean intensity (one) of infection which we believe indicated an accidental infection. However, the tissue location indicated successful penetration and colonization of the squid host.
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