Results 131 to 140 of about 1,065 (171)
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Parasitology Research, 2008
Gyrodactylid monogeneans are considered to be the most invasive fish parasites. They are omnipresent on teleost fishes and host change might play a crucial role in their biology. In the present study, related fish species were kept in single- or mixed-species groups to test the ability of Gyrodactylus species to change their host fish under ...
R D, Blazek, A, Bagge, E T, Valtonen
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Gyrodactylid monogeneans are considered to be the most invasive fish parasites. They are omnipresent on teleost fishes and host change might play a crucial role in their biology. In the present study, related fish species were kept in single- or mixed-species groups to test the ability of Gyrodactylus species to change their host fish under ...
R D, Blazek, A, Bagge, E T, Valtonen
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Larvae and Larval Development of Monogeneans
1963Publisher Summary This chapter focusses on a group of parasitic platyhelminths generally referred to as monogenetic trematodes. A few monogeneans are viviparous and the newly-born young resemble the parents, but most are oviparous, and the newly hatched young is a larva and called an oncomiracidium.
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Transmission of the monogenean Gyrodactylus salaris
Parasitology International, 1998The present study is focusing on the transmission of the monogenean ectoparasite Gyrodactylus salaris Malmberg, 1957, a major pathogen on natural populations of Norwegian Atlantic salmon, Salmo salar L. In laboratory experiments the transmission rate of G.
A Soleng, P Jansen, T Bakke
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Non-monophyly of the monogeneans?
International Journal for Parasitology, 1998There is currently no congruence between phylogenies based on morphology, in which the Monogenea are considered a monophylum, and molecular phylogenies based on 18S or 28S rDNA, in which the Monogenea are never considered monophyletic. However, all analyses based on morphology and sperm characters or molecular data found constantly the two subgroups ...
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Monogenean neuromusculature: some structural and functional correlates
International Journal for Parasitology, 1998Monogenean neuromuscular systems are structurally and functionally well-differentiated, as evidenced by research on the fish-gill parasite, Diclidophora merlangi. The nervous system in the worm exhibits a raft of putative intercellular signalling molecules, localised in neuronal vesicles.
Halton, David W. +3 more
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The influence of climate on the distribution of monogeneans of anurans in Nigeria
Journal of Helminthology, 2004AbstractInvestigations undertaken on the monogeneans of amphibians in Nigeria have shown that host ecology has an influence on the distribution of these monogeneans. Amphibians from humid environments of the rainforest, a freshwater swamp and mangrove harboured no monogeneans, whereas those occurring in drier conditions in the savannah-mosaic and ...
S O, Aisien +3 more
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The nutrition of the gill parasitic monogenean Pseudodactylogyrus anguillae
Parasitology Research, 1987A histological and histochemical study of ingested food material, energy stores and enzymes in the monogenean Pseudodactylogyrus anguillae, parasitizing the gills of the European eel (Anguilla anguilla) is presented. It was found that mucus, epithelial cells and blood from the gills were ingested.
Buchmann, K., Køie, M., Prentø, P.
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Insemination of the monogenean Neobenedenia girellae (Capsalidae, Benedeniinae)
Parasitology International, 2014In vitro spermatophore formation and insemination of Neobenedenia girellae (Monogenea: Capsalidae, Benedeniinae) were recorded on video and described for the first time. Upon contact of two individuals, the anterior adhesive discs of the donor firmly attached to the dorsal tegument of the recipient and the donor's fore body strongly contracted such ...
K, Ogawa, S, Shirakashi, H, Ishitani
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Genome-wide identification of ABC transporters in monogeneans
Molecular and Biochemical Parasitology, 2019ATP-Binding Cassette (ABC) transporters are proteins that actively mediate the transport of a wide variety of molecules, including drugs. Thus, in parasitology, ABC transporters have gained attention as potential targets for therapeutic drugs. Among the parasitic Platyhelminthes, ABC transporters have been identified and classified in a few species of ...
Víctor, Caña-Bozada +4 more
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Interactions between monogenean parasites and their fish hosts
International Journal for Parasitology, 2002Parasite factors associated with recognition and selection of the host and the mechanisms in the host responsible for acceptance or rejection of the invading organism were evaluated. Sensory structures in parasites are able to detect differences between different fish species and this ability to discern between fishes may be based on both chemical and ...
Buchmann, K., Lindenstrøm, T.
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