Results 141 to 150 of about 3,089 (170)
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Aquaculture, 2021
Abstract Co-infections with ectoparasites and bacteria commonly occur in fish farms and are associated with high mortality. In March 2020, a private Nile tilapia (Oreochromus niloticus) farm in Sharkia Governorate, Egypt, experienced high fish mortality, and the clinically diseased fish were characterized by lethargy, abnormal swimming behavior, loss
Nermeen M. Abu-Elala +4 more
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Abstract Co-infections with ectoparasites and bacteria commonly occur in fish farms and are associated with high mortality. In March 2020, a private Nile tilapia (Oreochromus niloticus) farm in Sharkia Governorate, Egypt, experienced high fish mortality, and the clinically diseased fish were characterized by lethargy, abnormal swimming behavior, loss
Nermeen M. Abu-Elala +4 more
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Microbial Ecology, 2015
Several ciliated protists form symbiotic associations with a diversity of microorganisms, leading to drastic impact on their ecology and evolution. In this work, two Euplotes spp. sampled in Rio de Janeiro, Brazil, were identified based on morphological and molecular features as Euplotes woodruffi strain Sq1 and E.
Senra, Marcus V. X. +6 more
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Several ciliated protists form symbiotic associations with a diversity of microorganisms, leading to drastic impact on their ecology and evolution. In this work, two Euplotes spp. sampled in Rio de Janeiro, Brazil, were identified based on morphological and molecular features as Euplotes woodruffi strain Sq1 and E.
Senra, Marcus V. X. +6 more
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Infections of Stentor roeseli and S. polymorphus (Ciliophora, Heterotrichida) by microsporidia
Parasitology Research, 1987In cells of the ciliated protozoa Stentor polymorphus and S. roeseli, infections by microsporidia were observed. In both stentors, the microsporidia were maintained in the laboratory and new cells could be infected when transferred to a culture of parasitized cells. The parasites were more pathogenic on S. roeseli than on S.
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Journal of Fish Diseases, 1995
Abstract. Cryptocaryon irritans (Ciliophora), isolated from the reef fish, Grammistes sexlineatus Thumberg, was established as primary infections in mullet, Chelon labrosus (Risso). Only a small percentage (<22%) of exposed theronts established infection under controlled conditions. This is discussed in relation to the probability of host parasite
R. A. MATTHEWS, P. J. BURGESS
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Abstract. Cryptocaryon irritans (Ciliophora), isolated from the reef fish, Grammistes sexlineatus Thumberg, was established as primary infections in mullet, Chelon labrosus (Risso). Only a small percentage (<22%) of exposed theronts established infection under controlled conditions. This is discussed in relation to the probability of host parasite
R. A. MATTHEWS, P. J. BURGESS
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Aquaculture, 2003
Philasterides dicentrarchi is a histophagous ciliate infecting turbot (Scophthalmus maximus) in aquaculture, where it causes significant economic losses. However, the route of entry of these parasites in turbot is not known. In the present study, we attempted experimental infection by seven routes: nasal, oral, rectal, branchial/dermal (i.e.
A Paramá +5 more
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Philasterides dicentrarchi is a histophagous ciliate infecting turbot (Scophthalmus maximus) in aquaculture, where it causes significant economic losses. However, the route of entry of these parasites in turbot is not known. In the present study, we attempted experimental infection by seven routes: nasal, oral, rectal, branchial/dermal (i.e.
A Paramá +5 more
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Journal of Eukaryotic Microbiology, 2008
ABSTRACT. A new microsporidian species, Euplotespora binucleata n. gen., n. sp., from the brackish‐water ciliate Euplotes woodruffi is described and defined on the basis of life history characteristics, light and electron microscopic features, and small subunit (SSU) ribosomal DNA (rDNA) sequencing. The life cycle of E. binucleata n. sp.
FOKIN, SERGEY +3 more
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ABSTRACT. A new microsporidian species, Euplotespora binucleata n. gen., n. sp., from the brackish‐water ciliate Euplotes woodruffi is described and defined on the basis of life history characteristics, light and electron microscopic features, and small subunit (SSU) ribosomal DNA (rDNA) sequencing. The life cycle of E. binucleata n. sp.
FOKIN, SERGEY +3 more
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Systematic Parasitology, 2017
A new species of Trichodina Ehrenberg, 1830 collected from the skin and fins of farmed North African catfish Clarias gariepinus (Burchell) fingerlings, is described. The new species can be distinguished from other trichodinids by the characteristics of the adhesive disc, especially by the great number of denticles. Trichodina merciae n. sp.
Fernando Lucas Prats, León +1 more
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A new species of Trichodina Ehrenberg, 1830 collected from the skin and fins of farmed North African catfish Clarias gariepinus (Burchell) fingerlings, is described. The new species can be distinguished from other trichodinids by the characteristics of the adhesive disc, especially by the great number of denticles. Trichodina merciae n. sp.
Fernando Lucas Prats, León +1 more
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Protist, 2013
A novel parasitic ciliate Fusiforma themisticola n. gen., n. sp. was discovered infecting 4.4% of the hyperiid amphipod Themisto libellula. Ciliates were isolated from a formaldehyde-fixed whole amphipod and the DNA was extracted for amplification of the small subunit (SSU) rRNA gene.
Chantangsi, Chitchai +5 more
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A novel parasitic ciliate Fusiforma themisticola n. gen., n. sp. was discovered infecting 4.4% of the hyperiid amphipod Themisto libellula. Ciliates were isolated from a formaldehyde-fixed whole amphipod and the DNA was extracted for amplification of the small subunit (SSU) rRNA gene.
Chantangsi, Chitchai +5 more
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Canadian Journal of Zoology, 1994
Samples of longhorn sculpin (Myoxocephalus octodecemspinosus) were exposed to sediment contaminated with crude oil or pulp and paper mill effluent for periods up to 13 months in the laboratory. Other samples were collected at sites where crude oil or effluent from a pulp and paper mill are discharged. The intensity of gill infections of Trichodina spp.
R. A. Khan +3 more
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Samples of longhorn sculpin (Myoxocephalus octodecemspinosus) were exposed to sediment contaminated with crude oil or pulp and paper mill effluent for periods up to 13 months in the laboratory. Other samples were collected at sites where crude oil or effluent from a pulp and paper mill are discharged. The intensity of gill infections of Trichodina spp.
R. A. Khan +3 more
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Journal of Eukaryotic Microbiology
ABSTRACT A comprehensive field investigation was conducted on 300 specimens of common carp ( Cyprinus carpio ) from the Godavari Basin in Nanded and Parbhani districts between May 2024 and April 2025. The protozoan parasite
Sailan Shueai Sailan +3 more
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ABSTRACT A comprehensive field investigation was conducted on 300 specimens of common carp ( Cyprinus carpio ) from the Godavari Basin in Nanded and Parbhani districts between May 2024 and April 2025. The protozoan parasite
Sailan Shueai Sailan +3 more
openaire +1 more source