A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse ( Cheilinus ... more A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse ( Cheilinus lunulatus ), Blacktip grouper ( Epinephelus fasciatus ) and Rabbit fish ( Siganus sp.). were examined for the presence of nematode Huffmanela species. The eggs of Huffmanela species were isolated and identified only from the C. lunulatus. The total prevalence of Huffmanela sp. infestation were 69.5%. The highest prevalence was observed in winter and the lowest in spring and summer. The prevalence was increased in correlation with fish body weight. Fully developed eggs of Huffmanela species were dark brown embryonated, elongated, with slightly protruding plugs. A high density of Huffmanela sp. eggs with different developmental stages packed the epithelial layer of the gas bladder. The surrounding tissue of gas bladder was hemorrhagic and sometimes necrotic associated with chronic inflammatory cell infiltration. This is the first record of Huffmanela species infestation in Broom tail wrasse C. lunulatus, Red Sea coral reef fishes.
Suez Canal Veterinary Medicine Journal. SCVMJ, 2016
A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (), 24 kosher Abu L... more A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (), 24 kosher Abu Lolo (Epinephelus fasciatus) and 30 Sigan (Siganusluridus) were collected seasonally between May 2014 and the end of April 2015 from coral reef sites along the shore of the National Institute of Oceanography and Fisheries (NIOF) at Hurghada's Red sea. They were investigated for detection of parasitic copepods. It was revealed that 31.16% of the examined marine fishes were infested. The detected species were belong to Genus Hatschekia Poche1902 from with a prevalence78.26%, and from Siganus luridus with prevalence 20% while not detected in Epinephelus fasciatus. The total and seasonal prevalence of infestation in each fish species in relation to body weights and lengths were recorded. Besides, the histopathological alterations were studied and discussed.
A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse (Cheilinus l... more A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse (Cheilinus lunulatus), Blacktip grouper (Epinephelus fasciatus) and Rabbit fish (Siganus sp.). were examined for the presence of nematode Huffmanela species. The eggs of Huffmanela species were isolated and identified only from the C. lunulatus. The total prevalence of Huffmanela sp. infestation were 69.5%. The highest prevalence was observed in winter and the lowest in spring and summer. The prevalence was increased in correlation with fish body weight. Fully developed eggs of Huffmanela species were dark brown embryonated, elongated, with slightly protruding plugs. A high density of Huffmanela sp. eggs with different developmental stages packed the epithelial layer of the gas bladder. The surrounding tissue of gas bladder was hem-orrhagic and sometimes necrotic associated with chronic inflammatory cell infiltration. This is the first record of Huffmanela species infestation in Broom tail wrasse C. lunulatus, Red Sea coral reef fishes.
An outbreak of Vibrio alginolyticus infection in aquarium-maintained dark-spotted (Himantura uarnak) and Tahitian (H. fai) stingrays, 2019
Vibrio alginolyticus was isolated from captive-bred adult dark-spotted stingrays (Himantura uarna... more Vibrio alginolyticus was isolated from captive-bred adult dark-spotted stingrays (Himantura uarnak) and Tahitian stingrays (Himantura fai) housed at the Hurghada Grand Aquarium (Egypt). The pathogen was isolated from skin ulcers, as well as from the internal organs of diseased and freshly died rays. Most of rays showed dorsal disc surface skin lesions characterized by the presence of whitish necrotic tissue. The total mortality was 25% during the outbreak, the histopathological pictures were also recorded. Phenotypic and biochemical characters as well as species-specific PCR confirmed the pathogen as V. algi-nolyticus MK170250. The isolated bacteria were sensitive to ampicillin, amikacin, streptomycin, neomy-cin, oxytetracycline, tetracycline, chloramphenicol, erythromycin, norfloxacin, and ciprofloxacin, but resistant to cephalothin. Antibiotic therapy was conducted with intramuscularly injection of amikacin at 3-5 mg/kg of fish on alternate days for five doses and resulted in preventing the clinical signs and mortality. This article represents the first report of V. alginolyticus infection in dark-spotted and Tahitian stin-grays, and highlights the potential pathogenic role of this microorganism in elasmobranchs kept in an aquarium.
A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (Cheilinus lunulatus... more A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (Cheilinus lunulatus), 24 kosher Abu Lolo (Epinephelus fasciatus) and 30 Sigan (Siganus luridus) were collected seasonally between May 2014 and the end of April 2015 from coral reef sites along the shore of the National Institute of Oceanography and Fisheries (NIOF) at Hurghada’s Red sea. They were investigated for detection of parasitic copepods. It was revealed that 31.16% of the examined marine fishes were infested. The detected species were belong to Genus Hatschekia Poche1902 from Cheilinus lunulatus with a prevalence78.26%, and from Siganus luridus with prevalence 20% while not detected in Epinephelus fasciatus. The total and seasonal prevalence of infestation in each fish species in relation to body weights and lengths were recorded. Besides, the histopathological alterations were studied and discussed.
A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse ( Cheilinus ... more A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse ( Cheilinus lunulatus ), Blacktip grouper ( Epinephelus fasciatus ) and Rabbit fish ( Siganus sp.). were examined for the presence of nematode Huffmanela species. The eggs of Huffmanela species were isolated and identified only from the C. lunulatus. The total prevalence of Huffmanela sp. infestation were 69.5%. The highest prevalence was observed in winter and the lowest in spring and summer. The prevalence was increased in correlation with fish body weight. Fully developed eggs of Huffmanela species were dark brown embryonated, elongated, with slightly protruding plugs. A high density of Huffmanela sp. eggs with different developmental stages packed the epithelial layer of the gas bladder. The surrounding tissue of gas bladder was hemorrhagic and sometimes necrotic associated with chronic inflammatory cell infiltration. This is the first record of Huffmanela species infestation in Broom tail wrasse C. lunulatus, Red Sea coral reef fishes.
Suez Canal Veterinary Medicine Journal. SCVMJ, 2016
A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (), 24 kosher Abu L... more A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (), 24 kosher Abu Lolo (Epinephelus fasciatus) and 30 Sigan (Siganusluridus) were collected seasonally between May 2014 and the end of April 2015 from coral reef sites along the shore of the National Institute of Oceanography and Fisheries (NIOF) at Hurghada's Red sea. They were investigated for detection of parasitic copepods. It was revealed that 31.16% of the examined marine fishes were infested. The detected species were belong to Genus Hatschekia Poche1902 from with a prevalence78.26%, and from Siganus luridus with prevalence 20% while not detected in Epinephelus fasciatus. The total and seasonal prevalence of infestation in each fish species in relation to body weights and lengths were recorded. Besides, the histopathological alterations were studied and discussed.
A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse (Cheilinus l... more A total of 385 Red Sea coral reef fish representing three species; Broom tail wrasse (Cheilinus lunulatus), Blacktip grouper (Epinephelus fasciatus) and Rabbit fish (Siganus sp.). were examined for the presence of nematode Huffmanela species. The eggs of Huffmanela species were isolated and identified only from the C. lunulatus. The total prevalence of Huffmanela sp. infestation were 69.5%. The highest prevalence was observed in winter and the lowest in spring and summer. The prevalence was increased in correlation with fish body weight. Fully developed eggs of Huffmanela species were dark brown embryonated, elongated, with slightly protruding plugs. A high density of Huffmanela sp. eggs with different developmental stages packed the epithelial layer of the gas bladder. The surrounding tissue of gas bladder was hem-orrhagic and sometimes necrotic associated with chronic inflammatory cell infiltration. This is the first record of Huffmanela species infestation in Broom tail wrasse C. lunulatus, Red Sea coral reef fishes.
An outbreak of Vibrio alginolyticus infection in aquarium-maintained dark-spotted (Himantura uarnak) and Tahitian (H. fai) stingrays, 2019
Vibrio alginolyticus was isolated from captive-bred adult dark-spotted stingrays (Himantura uarna... more Vibrio alginolyticus was isolated from captive-bred adult dark-spotted stingrays (Himantura uarnak) and Tahitian stingrays (Himantura fai) housed at the Hurghada Grand Aquarium (Egypt). The pathogen was isolated from skin ulcers, as well as from the internal organs of diseased and freshly died rays. Most of rays showed dorsal disc surface skin lesions characterized by the presence of whitish necrotic tissue. The total mortality was 25% during the outbreak, the histopathological pictures were also recorded. Phenotypic and biochemical characters as well as species-specific PCR confirmed the pathogen as V. algi-nolyticus MK170250. The isolated bacteria were sensitive to ampicillin, amikacin, streptomycin, neomy-cin, oxytetracycline, tetracycline, chloramphenicol, erythromycin, norfloxacin, and ciprofloxacin, but resistant to cephalothin. Antibiotic therapy was conducted with intramuscularly injection of amikacin at 3-5 mg/kg of fish on alternate days for five doses and resulted in preventing the clinical signs and mortality. This article represents the first report of V. alginolyticus infection in dark-spotted and Tahitian stin-grays, and highlights the potential pathogenic role of this microorganism in elasmobranchs kept in an aquarium.
A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (Cheilinus lunulatus... more A total number of 77 marine fishes of 3 species represented as 23 Abu Sabib (Cheilinus lunulatus), 24 kosher Abu Lolo (Epinephelus fasciatus) and 30 Sigan (Siganus luridus) were collected seasonally between May 2014 and the end of April 2015 from coral reef sites along the shore of the National Institute of Oceanography and Fisheries (NIOF) at Hurghada’s Red sea. They were investigated for detection of parasitic copepods. It was revealed that 31.16% of the examined marine fishes were infested. The detected species were belong to Genus Hatschekia Poche1902 from Cheilinus lunulatus with a prevalence78.26%, and from Siganus luridus with prevalence 20% while not detected in Epinephelus fasciatus. The total and seasonal prevalence of infestation in each fish species in relation to body weights and lengths were recorded. Besides, the histopathological alterations were studied and discussed.
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