Light microscopic study of four plagiorchiid trematodes infecting marine fish in the south-eastern Mediterranean Sea, Alexandria City, with descriptions of two new species

Abdel‐Gaber, Rewaida; Abdel-Ghaffar, Fathy; Mehlhorn, Heinz; Quraishy, Saleh Al; Morsy, Kareem; Maher, Sherein

doi:10.1007/s00436-018-5811-0

Cited by 5 publications

(5 citation statements)

References 40 publications

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“…Regarding to Acanthostomum spiniceps, the general characters were highly agreed with that reported by Morsy et al [15] and Abdel-Gaber et al [16] . The measurements in the present work are slightly larger than that mentioned by Morsy et al [15] .…”

Section: Discussionsupporting

confidence: 89%

“…The measurements in the present work are slightly larger than that mentioned by Morsy et al [15] . The number of perioral spines was 26 in the current study, more than that of Morsy et al [15] and Abdel-Gaber et al [16] (23 perioral spines). On the other hand, the incidence of Acanthostomum spiniceps infection in the present work was 2.2%, lower than that reported by Morsy et al [15] who recorded incidence rate of Acanthostomum spiniceps infection in Lates niloticus = 40%, this may be attributed to the differences of fish host.…”

Section: Discussioncontrasting

confidence: 69%

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Parasitic Helminths of the Freshwater Catfish (Clarias Gariepinus) From Fayoum Governorate, Egypt

Al-Bassel

Abo-Elhasan

Abdel-Halim

et al. 2022

Egyptian Journal of Zoology

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The parasitic diseases are one of the potential factors that restrict the development of fish aquaculture because fish parasites not only can cause injuries, but can even lead to death of the fish. The present study aimed to record/update the prevalence and intensity of parasitic helminths in the freshwater catfish "Clarias gariepinus " in Fyoum Governorate, Egypt. A total of 368 Clarias gariepinus samples were collected from Bahr Youssef (line of the River Nile) from Fayoum Governorate during the period from January 2019 to February 2020, and were examined for the presence of helminth parasites. Out of 368 examined fish, 227 (61.7%) were found to be infected with six species of helminthes (three trematodes, two cestodes, and one nematode): Dactylogyrus claridii, Acanthostomum spiniceps, Orientocreadium batrachoides, Polyonchobothrium clarias, Monobothrium sp., and Paracamallanus cythopharynx with infection rates = 13.0%, 2.2%, 5.4%, 9.2%, 13.3%, and 18.5%, respectively. Regarding to the seasonal variations, the obtained results showed that the highest rate of infection was recorded during the spring (76.9%), followed by the summer (70.0%) and the winter (53.5%), while the autumn represented the lowest rate of infection (52.3%). In addition, this study provides additional morphological characters for the parasite Paracamallanus cyathopharynx based on the scanning electron microscopy.

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Section: Discussionsupporting

confidence: 89%

Section: Discussioncontrasting

confidence: 69%

Parasitic Helminths of the Freshwater Catfish (Clarias Gariepinus) From Fayoum Governorate, Egypt

Al-Bassel

Abo-Elhasan

Abdel-Halim

et al. 2022

Egyptian Journal of Zoology

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“…Lates niloticus (L.) Euclinostomum sp. Clinostomidae [24] Acanthostomum knobus Issa, 1962 Cryptogonimidae [25,26] Acanthostomum niloticum Issa, 1962 [25, 26] Acanthostomum spiniceps (Looss, 1896) Looss, 1899 [27] Tylodelphys sp. (metacercaria) Diplostomidae [28] Echinostoma sp.…”

Section: Hostmentioning

confidence: 99%

“…Almost nothing is known on the digenean fauna infecting the endemic Lates spp. in Lake Tanganyika which is in contrast to the fairly large amount of data on L. niloticus (L.) and their Asian congener, L. calcarifer (Bloch) (see overview on the known helminth fauna of the latid family members in Table 1) [24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42]. The present Table 1 List of digenean species described from members of the family Latidae a Reported as Psilostomum chilkai Chatterji, 1956 b Reported as Complexobursa magna Bilqees, 1979 c Reported as Lecithochirium neopacificum Velasquez, 1962…”

Section: Introductionmentioning

confidence: 99%

Uncharted digenean diversity in Lake Tanganyika: cryptogonimids (Digenea: Cryptogonimidae) infecting endemic lates perches (Actinopterygii: Latidae)

et al. 2020

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Background: Lake Tanganyika is considered a biodiversity hotspot with exceptional species richness and level of endemism. Given the global importance of the lake in the field of evolutionary biology, the understudied status of its parasite fauna is surprising with a single digenean species reported to date. Although the most famous group within the lake's fish fauna are cichlids, the pelagic zone is occupied mainly by endemic species of clupeids (Actinopterygii: Clupeidae) and lates perches (Actinopterygii: Latidae, Lates Cuvier), which are an important commercial source for local fisheries. In this study, we focused on the lake's four lates perches and targeted their thus far unexplored endoparasitic digenean fauna. Methods: A total of 85 lates perches from four localities in Lake Tanganyika were examined. Cryptogonimid digeneans were studied by means of morphological and molecular characterisation. Partial sequences of the nuclear 28S rRNA gene and the mitochondrial cytochrome c oxidase subunit 1 (cox1) gene were sequenced for a representative subset of the specimens recovered. Phylogenetic analyses were conducted at the family level under Bayesian inference. Results: Our integrative approach revealed the presence of six species within the family Cryptogonimidae Ward, 1917. Three out of the four species of Lates were found to be infected with at least one cryptogonimid species. Two out of the three reported genera are new to science. Low interspecific but high intraspecific phenotypic and genetic diversity was found among Neocladocystis spp. Phylogenetic inference based on partial 28S rDNA sequences revealed a sister group relationship for two of the newly erected genera and their close relatedness to the widely distributed genus Acanthostomum Looss, 1899. Conclusions: The present study provides the first comprehensive characterisation of the digenean diversity in a fish family from Lake Tanganyika which will serve as a baseline for future explorations of the lake's digenean fauna. Our study highlights the importance of employing an integrative approach for revealing the diversity in this unique hostparasite system.

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“…Food-borne parasitic infections have been recognized as an important public health problem, with a considerable economic impact in terms of morbidity and healthcare costs worldwide (Abdel-Gaber et al, 2018). Fish-born zoonotic trematodes are transmitted by fish and fish products, and pose a major public health problem (Hung et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Re-Description and Morphological Characterization of Sclerodistomum Aegyptiaca (Digenea: Sclerodistomidae) Infecting the Fish Boops Boops: A New Locality and Host Record in Egypt

Saleh

SAMIR

2022

Journal of the Egyptian Society of Parasitology

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During the present investigation, a total of 569 fish specimens belonging to Boops boops, were collected from 2020 from the coasts water Alexandria City, Mediterranean Sea, Egypt. The collected fishs were dissected and examined for the presence of helminthes parasites. A total of 232/ 569 (40.83%) were found naturally infected with trematode parasites. The rate of infection was 16 (6.03%) fish. The recovered parasite species were collected and identified by applying light microscopic examinations. So, this study was the re-description of Sclerodistomum aegyptiaca in new host (Boops boops) from Alexandria coastal area. Morphological and diagnostic morphometric characterizations showed some differences between the present species and other related species detected previously.

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Light microscopic study of four plagiorchiid trematodes infecting marine fish in the south-eastern Mediterranean Sea, Alexandria City, with descriptions of two new species

Cited by 5 publications

References 40 publications

Parasitic Helminths of the Freshwater Catfish (Clarias Gariepinus) From Fayoum Governorate, Egypt

Parasitic Helminths of the Freshwater Catfish (Clarias Gariepinus) From Fayoum Governorate, Egypt

Uncharted digenean diversity in Lake Tanganyika: cryptogonimids (Digenea: Cryptogonimidae) infecting endemic lates perches (Actinopterygii: Latidae)

Re-Description and Morphological Characterization of Sclerodistomum Aegyptiaca (Digenea: Sclerodistomidae) Infecting the Fish Boops Boops: A New Locality and Host Record in Egypt

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