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Endoparasitic helminths of the whitespotted rabbitfish (<i>Siganus sutor</i> (Valenciennes, 1835)) of the Kenyan coast: distribution within the host population and microhabitat use OMA
Geets, A.; Ollevier, F.P..
The parasitic fauna of the alimentary tract of adult whitespotted rabbitfish, <i>Siganus sutor</i>, sampled in December 1990 at the Kenyan coast, was investigated. Five endoparasites were found: the digenean trematodes <i>Opisthogonoporoides hanumanthai, Gyliauchen papillatus</i> and <i>Hexangium sigani</i>, the acanthocephalan <i>Sclerocollum rubrimaris</i> and the nematode <i>Procammalanus elatensis</i>. No uninfected fish, nor single species infections occurred. Parasite population data showed very high prevalences for all endoparasites, ranging from 68.18% to 100%. <i>G. papillatus</i> occurred with the highest mean intensity, 201.68 ± 12.54 parasites per infected fish. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Siganus sutor [shoemaker spinefoot] ISW; Kenyan Coast.
Ano: 1996 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2966
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The nuclear rDNA region of <i>Gyrodactylus arcuatus</i> and <i>G. branchicus</i> (Monogenea: Gyrodactylidae) OMA
Zietara, M.S.; Arndt, A.; Geets, A.; Hellemans, B.; Volckaert, F.A.M.J..
The primary structure of the ribosomal DNA internal transcribed spacers (ITS-1 and ITS-2) and 5.8S rRNA gene were used to characterize and identify 2 monogenean species of <i>Gyrodactylus</i> living externally on the threespine stickleback (<i>Gasterosteus aculeatus</i>). The ITS region was amplified by PCR from freshwater, brackish, and marine isolates of <i>Gyrodactylus arcuatus</i> and <i>G. branchicus</i>, and the ends of the coding regions were identified by comparative alignment. No intraspecific and very low interspecific variation were observed in the 5.8S rRNA gene; high inter- and low intraspecific variation were revealed in the ITS-1 and ITS-2 regions. The morphological species identification was...
Tipo: Info:eu-repo/semantics/article Palavras-chave: DNA; Molecular structure; Nucleotide sequence; Taxonomy; Gasterosteus aculeatus.
Ano: 2000 URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8482
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Efficacy of some anthelmintics against the swimbladder nematode <i>Anguillicola crassus</i> of eel <i>Anguilla anguilla</i> under saltwater conditions OMA
Geets, A.; Liewes, E.W.; Ollevier, F.P..
Six anthelmintic drugs, Ivermectin, Closantel, Safewormer, Masoten, Oxfendazole and L-Levamisol·HCL were screened for their efficacy against <i>Anguillicola crassus</i>, a swimbladder nematode of European eel <i>Anguilla anguilla</i>. All experiments were carried out under saltwater conditions. Of the 6 drugs, L-Levamisole·HCL used in a bath treatment gave the most promising results. Evaluation of the curative dose of L-Levamisole·HCL showed that a long-term treatment (24h). Dosages lower than 20 mg 1<sup>-1</sup> showed a lower efficacy against <i>Anguillicola crassus</i>. However, even with a long-term, high-dosage treatment, some recovery of adult nematodes with sublethal damage and/or migration of viable...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Anguilla anguilla (Linnaeus; 1758) Anguillicola crassus.
Ano: 1992 URL: http://www.vliz.be/imisdocs/publications/299063.pdf
Registros recuperados: 3
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