Identification of Caligus parasites infesting Morone Labrax and its impact on fish health status and pathological alteration.
Abdelkhalek, N., Abd EL Maged, R., Ali, H., Satour, N. (2021). Identification of Caligus parasites infesting Morone Labrax and its impact on fish health status and pathological alteration.. EKB Journal Management System, 22(1), 7-12. doi: 10.21608/mvmj.2021.56334.1023
Nevien Kamel Abdelkhalek Abdelkhalek; Rehab R Abd EL Maged; Hanaa S Ali; Neveen S Satour. "Identification of Caligus parasites infesting Morone Labrax and its impact on fish health status and pathological alteration.". EKB Journal Management System, 22, 1, 2021, 7-12. doi: 10.21608/mvmj.2021.56334.1023
Abdelkhalek, N., Abd EL Maged, R., Ali, H., Satour, N. (2021). 'Identification of Caligus parasites infesting Morone Labrax and its impact on fish health status and pathological alteration.', EKB Journal Management System, 22(1), pp. 7-12. doi: 10.21608/mvmj.2021.56334.1023
Abdelkhalek, N., Abd EL Maged, R., Ali, H., Satour, N. Identification of Caligus parasites infesting Morone Labrax and its impact on fish health status and pathological alteration.. EKB Journal Management System, 2021; 22(1): 7-12. doi: 10.21608/mvmj.2021.56334.1023

Identification of Caligus parasites infesting Morone Labrax and its impact on fish health status and pathological alteration.

Mansoura Veterinary Medical Journal
Article 10, Volume 22, Issue 1, March 2021, Page 7-12  XML PDF (1.47 MB)
Document Type: Original Articles
DOI: 10.21608/mvmj.2021.56334.1023
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Authors
Nevien Kamel Abdelkhalek Abdelkhalek email orcid 1; Rehab R Abd EL Maged2; Hanaa S Ali3; Neveen S Satour4
1MANSOURA - 60 ELGOMHORIA ST, MANSOURA UNIVERSITY, FACULTY OF VETERINARY MEDICINE - 35516 MANSOURA EG 2 Abotaleb street, Gedela, Aldakahlia, Mansoura, Egypt
2Department of Parasitology, Animal Health Research Institute( AHRI), Agriculture Research center (ARC), P.O. Box 246 Dokki, 12618 – Giza, Egypt.
3Department of of pathology, Animal Health Research Institute (AHRI), Agriculture Research center (ARC), P.O. Box 246 Dokki, 12618 – Giza, Egypt; Mansoura branch, Egypt.
4Department of Parasitology, Animal Health Research Institute( AHRI), Agriculture Research center(ARC), P.O. Box 246 Dokki, 12618 – Giza, Egypt; Alexandria branch, Egypt.
Abstract
Objective: The present study was aimed to investigate sea lice infestation including morphometric, molecular identification, disease prevalence and pathological tissue alterations in wild Sea bass (Morone Labrax) naturally collected from Ezbet Elborg, Damietta province, Egypt from October 2018 to end of August 2019.
Design: Descriptive study
Fish: 120 wild seabass (Morone Labrax)
Procedures: The collected fish from Ezbet Elborg area, Damietta province, Egypt were clinically and parasitological investigated for the prevalence of sea lice parasite with molecular identification of the collected parasite samples with study of the pathological alteration of the affected tissue.
Results: The study revealed that 48 fish (40%) of the examined fish were infested with Caligus clemensi, while the higher prevalence recorded during summer season (57%) followed spring (33%), autumn (10%) and no recording during winter. The molecular identification using 18-S rDNA was done with phylogenetic analysis compared with the previously recorded caligus species on database confirming the same results of parasitology. Histopathological examination of gills, buccal cavity revealed that the gill arch contained congested blood vessels beside edema, hemorrhage and inflammatory cells infiltration due to parasitic infestation.
Conclusions and clinical relevance: Caligus infestation in wild sea bass caused by Caligus clemensi lead to mortalities due to pathological tissue alterations in gills and buccal cavity.
Keywords
Wild Morone labrax; Caligus clemensi; molecular identification; histopathological examination
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