Parasites of Nile Tilapia larvae Oreochromis niloticus (Pisces: Cichlidae) in concrete ponds in Guanacaste, Northern Costa Rica
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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Estatal a Distancia
2017
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| author | Donald Arguedas C. |
| author_facet | Donald Arguedas C. |
| contents | Parasites of Nile Tilapia larvae Oreochromis niloticus (Pisces: Cichlidae) in concrete ponds in Guanacaste, Northern Costa Rica Donald Arguedas C. Cesar Ortega S. Simón Martínez C. Ángel Astroza C. Multidisciplinaria (Ciencias Naturales y Exactas) parasites Prevalence Costa Rica Nile tilapia sex reversal process Tilapia is the second most important cultured species in the world fish culture but it can be affected by parasites. We conducted a cross-sectional parasitic study in tilapia larvae during sexual reversion for two seasons in Costa Rica. A total of 320 larvae from a concrete pond were necropsied and we found ten parasite species: Ichtyobodo sp., Apiosoma sp., Chillodonella sp., Heteropollaria sp., Trichodina sp., Dactylogyrus sp., Girodactylus sp., Centrocestus sp., lasidies and glochidies (two larval forms). These were classified in five taxonomic groups (two subtypes of protozoa, two metazoan classes and a type of mollusk). Protozoans and monogeneans (except Trichodina sp.) had a higher prevalence in the rainy season, when water had more solid waste, while digeneans and molluscs were more prevalent in the dry season, with different infection dynamics over gills, skin, fins and head. 2017 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515657601015 https://www.redalyc.org/journal/5156/515657601015/ https://www.redalyc.org/journal/5156/515657601015/html/ https://www.redalyc.org/journal/5156/515657601015/515657601015.epub https://www.redalyc.org/journal/5156/515657601015/movil 10.22458/urj.v9i2.1904 en http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.2 Vol.9 |
| format | Artículo científico |
| id | redalyc_515657601015 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Universidad Estatal a Distancia |
| spellingShingle | Parasites of Nile Tilapia larvae Oreochromis niloticus (Pisces: Cichlidae) in concrete ponds in Guanacaste, Northern Costa Rica Donald Arguedas C. Multidisciplinaria (Ciencias Naturales y Exactas) parasites Prevalence Costa Rica Nile tilapia sex reversal process Parasites of Nile Tilapia larvae Oreochromis niloticus (Pisces: Cichlidae) in concrete ponds in Guanacaste, Northern Costa Rica Donald Arguedas C. Cesar Ortega S. Simón Martínez C. Ángel Astroza C. Multidisciplinaria (Ciencias Naturales y Exactas) parasites Prevalence Costa Rica Nile tilapia sex reversal process Tilapia is the second most important cultured species in the world fish culture but it can be affected by parasites. We conducted a cross-sectional parasitic study in tilapia larvae during sexual reversion for two seasons in Costa Rica. A total of 320 larvae from a concrete pond were necropsied and we found ten parasite species: Ichtyobodo sp., Apiosoma sp., Chillodonella sp., Heteropollaria sp., Trichodina sp., Dactylogyrus sp., Girodactylus sp., Centrocestus sp., lasidies and glochidies (two larval forms). These were classified in five taxonomic groups (two subtypes of protozoa, two metazoan classes and a type of mollusk). Protozoans and monogeneans (except Trichodina sp.) had a higher prevalence in the rainy season, when water had more solid waste, while digeneans and molluscs were more prevalent in the dry season, with different infection dynamics over gills, skin, fins and head. 2017 artículo científico 1659-4266 https://www.redalyc.org/articulo.oa?id=515657601015 https://www.redalyc.org/journal/5156/515657601015/ https://www.redalyc.org/journal/5156/515657601015/html/ https://www.redalyc.org/journal/5156/515657601015/515657601015.epub https://www.redalyc.org/journal/5156/515657601015/movil 10.22458/urj.v9i2.1904 en http://www.redalyc.org/revista.oa?id=5156 UNED Research Journal / Cuadernos de Investigación UNED application/pdf Universidad Estatal a Distancia UNED Research Journal / Cuadernos de Investigación UNED (Costa Rica) Num.2 Vol.9 |
| title | Parasites of Nile Tilapia larvae Oreochromis niloticus (Pisces: Cichlidae) in concrete ponds in Guanacaste, Northern Costa Rica |
| topic | Multidisciplinaria (Ciencias Naturales y Exactas) parasites Prevalence Costa Rica Nile tilapia sex reversal process |
| url | https://www.redalyc.org/articulo.oa?id=515657601015 https://www.redalyc.org/journal/5156/515657601015/ https://www.redalyc.org/journal/5156/515657601015/html/ https://www.redalyc.org/journal/5156/515657601015/515657601015.epub https://www.redalyc.org/journal/5156/515657601015/movil |