Pathological effects caused by Pennella instructa (Wilson, 1917) (Pennellidae) to its host Xiphias gladius Linnaeus, 1758 (Xiphiidae) off the Algerian Coast
January 21, 2022
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| Article Title: | Pathological effects caused by Pennella instructa (Wilson, 1917) (Pennellidae) to its host Xiphias gladius Linnaeus, 1758 (Xiphiidae) off the Algerian Coast |
| Authors: | Ramdani S., Trilles J. P., Ramdane Z. |
| Affiliation: | 1Laboratoire de la zoologie appliquée et de l’écophysiologie animale, université Abderrahmane Mira-Bejaia, Algérie 2Université de Montpellier, 34000 Montpellier, France |
| Abstract: | Pathological effects caused to Xiphias gladius Linnaeus, 1758 by Pennella instructa (Wilson, 1917) were studied for the first time in Algerian coasts. Five specimens of X. gladius were captured in the gulf of Bejaia (eastern of Algerian coast) from February to May 2020. Infection rates by P. instructa reached P=100%. On the same specimen of P. instructa many barnacles (8 specimens) were found fixed. Our macroscopic and microscopic (Histopathological studies) observations show that P. instructa causes many damages to its host (X. gladius): perforation, necrosis and hemorrhage in their fixing sites, ulceration in the skin, derma and muscle. |
| Keywords: | Xiphias gladius, Pennella instructa, Pathology, Conchoderma virgatum, Algerian coast |
| *Correspondence: | Souhila Ramdani, Laboratoire de la zoologie appliquée et de l’écophysiologie animale, Université Abderrahmane Mira-Bejaia, Algérie; e-mail: sousane.green@gmail.com, souhila.ramdani@univ.bejaia.dz |
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