• Home
  • Browse
    • Current Issue
    • By Issue
    • By Author
    • By Subject
    • Author Index
    • Keyword Index
  • Journal Info
    • About Journal
    • Aims and Scope
    • Editorial Board
    • Publication Ethics
    • Indexing and Abstracting
    • Peer Review Process
  • Guide for Authors
  • Submit Manuscript
  • Contact Us
 
  • Login
  • Register
Home Articles List Article Information
  • Save Records
  • |
  • Printable Version
  • |
  • Recommend
  • |
  • How to cite Export to
    RIS EndNote BibTeX APA MLA Harvard Vancouver
  • |
  • Share Share
    CiteULike Mendeley Facebook Google LinkedIn Twitter
Egyptian Journal of Aquatic Biology and Fisheries
arrow Articles in Press
arrow Current Issue
Journal Archive
Volume Volume 29 (2025)
Volume Volume 28 (2024)
Volume Volume 27 (2023)
Volume Volume 26 (2022)
Issue Issue 6
Issue Issue 5
Issue Issue 4
Issue Issue 3
Issue Issue 2
Issue Issue 1
Volume Volume 25 (2021)
Volume Volume 24 (2020)
Volume Volume 23 (2019)
Volume Volume 22 (2018)
Volume Volume 21 (2017)
Volume Volume 20 (2016)
Volume Volume 19 (2015)
Volume Volume 18 (2014)
Volume Volume 17 (2013)
Volume Volume 16 (2012)
Volume Volume 15 (2011)
Volume Volume 14 (2010)
Volume Volume 13 (2009)
Volume Volume 12 (2008)
Volume Volume 11 (2007)
Volume Volume 10 (2006)
Volume Volume 9 (2005)
Volume Volume 8 (2004)
Volume Volume 7 (2003)
Volume Volume 6 (2002)
Volume Volume 5 (2001)
Volume Volume 4 (2000)
Volume Volume 3 (1999)
Volume Volume 2 (1998)
Volume Volume 1 (1997)
A. Mahdy et al., O. (2022). Macrogyrodactylus spp. and bacterial co-infection in the farmed African catfish Clarias gariepinus. Egyptian Journal of Aquatic Biology and Fisheries, 26(1), 229-242. doi: 10.21608/ejabf.2022.216919
Olfat A. Mahdy et al.. "Macrogyrodactylus spp. and bacterial co-infection in the farmed African catfish Clarias gariepinus". Egyptian Journal of Aquatic Biology and Fisheries, 26, 1, 2022, 229-242. doi: 10.21608/ejabf.2022.216919
A. Mahdy et al., O. (2022). 'Macrogyrodactylus spp. and bacterial co-infection in the farmed African catfish Clarias gariepinus', Egyptian Journal of Aquatic Biology and Fisheries, 26(1), pp. 229-242. doi: 10.21608/ejabf.2022.216919
A. Mahdy et al., O. Macrogyrodactylus spp. and bacterial co-infection in the farmed African catfish Clarias gariepinus. Egyptian Journal of Aquatic Biology and Fisheries, 2022; 26(1): 229-242. doi: 10.21608/ejabf.2022.216919

Macrogyrodactylus spp. and bacterial co-infection in the farmed African catfish Clarias gariepinus

Article 13, Volume 26, Issue 1, January and February 2022, Page 229-242  XML PDF (562.97 K)
Document Type: Original Article
DOI: 10.21608/ejabf.2022.216919
View on SCiNiTO View on SCiNiTO
Author
Olfat A. Mahdy et al.
Abstract
Monopisthocotylean gyrodactylids and Edwardsiella tarda are potential piscine pathogens mainly associated with fish mortality and significant economic losses. In this study, a total of 100 African catfish, Clarias gariepinus were collected from an earthen ponds-based farm that experienced considerable mortalities with obvious septicaemic signs. The collected catfish were subjected to clinical, parasitological and microbiological investigations. Gyrodactylids were detected on the gill filaments of the examined fish specimens and were identified as Macrogyrodactylus spp. based on their morphological characteristics. The prevalence and intensity of Macrogyrodactylus spp. were 65% and 7.76 ± 0.20 / fish, respectively. On the other hand, E. tarda has been concurrently isolated from 70% of investigated catfish. E. tarda was phenotypically and molecularly characterized, and their antibiotic-resistant profile was investigated. The existence of pathogenic E. tarda in the same catfish infested with gyrodactylids probably augmented the clinical signs accompanied by the expansion of fish mortality. The experimental challenge with E. tarda proved that the current bacterial isolate was pathogenic to catfish based on the severity of the clinical signs and mortality rate. These findings suggested the existence of a possible synergism between E. tarda and Macrogyrodactylus spp. infections.
Keywords
Clarias gariepinus; Edwardsiella tarda; Macrogyrodactylus spp; Molecular identification; Synergism
Statistics
Article View: 445
PDF Download: 630
Home | Glossary | News | Aims and Scope | Sitemap
Top Top

Journal Management System. Designed by NotionWave.