Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil
Abstract Here, we evaluate the relationships between the infestation rates of five monogenean parasites species with the dry and wet seasons, with the organic and inorganic parameters of the water of two rivers: the Jacaré-Pepira and Jacaré-Guaçú, and with the condition factors of its fish hosts: Se...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
2023-05-01
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| Series: | Brazilian Journal of Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842023000100470&lng=en&tlng=en |
| _version_ | 1827946787030171648 |
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| author | L. A. R. Leite F. F. Januário L. S. Pelegrini B. Antoniassi R. K. Azevedo V. D. Abdallah |
| author_facet | L. A. R. Leite F. F. Januário L. S. Pelegrini B. Antoniassi R. K. Azevedo V. D. Abdallah |
| author_sort | L. A. R. Leite |
| collection | DOAJ |
| description | Abstract Here, we evaluate the relationships between the infestation rates of five monogenean parasites species with the dry and wet seasons, with the organic and inorganic parameters of the water of two rivers: the Jacaré-Pepira and Jacaré-Guaçú, and with the condition factors of its fish hosts: Serrasalmus maculatus and Astronotus crassipinnis, in the state of São Paulo, southeastern Brazil. Fish were collected between January and December 2017. Anacanthorus serrasalmi, Amphithecium speirocamarotum and Gussevia asota had higher abundance rates (Student’s t test, p ≤ 0.05) in the wet season. Gussevia asota had its abundance negatively correlated to nitrate in the Jacaré-Pepira River and with total nitrogen and potassium in the Jacaré-Guaçú River. Regarding the fish hosts condition factors, was observed a positive correlation with the abundances of G. asota in the Jacaré-Guaçú River, and with A. serrasalmi in the Jacaré-Pepira River. In general, wet season favored an increasing in the infestation rates of the monogeneans parasites in their host species, mainly in the river considered as the most polluted, the Jacaré-Guaçú River. Of the five parasites species analyzed in this study, only Gussevia astronoti and Rhinoxenus piranhus had no interaction with seasonality, river water variables, or fish host condition factors. On the other hand, G. asota had interactions both with water parameters (nitrate and total nitrogen) and with the hosts condition factors, which reflected in the abundance and intensity rates, showing itself as a species sensitive to changes in the environment and, therefore, that can be considered as a bioindicator organism. |
| first_indexed | 2024-03-13T11:05:56Z |
| format | Article |
| id | doaj.art-df4604b644d84543ad744cf4dfac1c92 |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-03-13T11:05:56Z |
| publishDate | 2023-05-01 |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-df4604b644d84543ad744cf4dfac1c922023-05-16T07:33:04ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-43752023-05-018310.1590/1519-6984.255758Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern BrazilL. A. R. Leitehttps://orcid.org/0000-0002-4139-7839F. F. Januáriohttps://orcid.org/0000-0001-8954-8133L. S. Pelegrinihttps://orcid.org/0000-0001-8435-994XB. Antoniassihttps://orcid.org/0000-0002-4296-0435R. K. Azevedohttps://orcid.org/0000-0002-0471-6079V. D. Abdallahhttps://orcid.org/0000-0001-6539-6091Abstract Here, we evaluate the relationships between the infestation rates of five monogenean parasites species with the dry and wet seasons, with the organic and inorganic parameters of the water of two rivers: the Jacaré-Pepira and Jacaré-Guaçú, and with the condition factors of its fish hosts: Serrasalmus maculatus and Astronotus crassipinnis, in the state of São Paulo, southeastern Brazil. Fish were collected between January and December 2017. Anacanthorus serrasalmi, Amphithecium speirocamarotum and Gussevia asota had higher abundance rates (Student’s t test, p ≤ 0.05) in the wet season. Gussevia asota had its abundance negatively correlated to nitrate in the Jacaré-Pepira River and with total nitrogen and potassium in the Jacaré-Guaçú River. Regarding the fish hosts condition factors, was observed a positive correlation with the abundances of G. asota in the Jacaré-Guaçú River, and with A. serrasalmi in the Jacaré-Pepira River. In general, wet season favored an increasing in the infestation rates of the monogeneans parasites in their host species, mainly in the river considered as the most polluted, the Jacaré-Guaçú River. Of the five parasites species analyzed in this study, only Gussevia astronoti and Rhinoxenus piranhus had no interaction with seasonality, river water variables, or fish host condition factors. On the other hand, G. asota had interactions both with water parameters (nitrate and total nitrogen) and with the hosts condition factors, which reflected in the abundance and intensity rates, showing itself as a species sensitive to changes in the environment and, therefore, that can be considered as a bioindicator organism.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842023000100470&lng=en&tlng=enenvironmental parasitologyeffect bioindicationMonogeneafish parasitologyhost-parasite relationship |
| spellingShingle | L. A. R. Leite F. F. Januário L. S. Pelegrini B. Antoniassi R. K. Azevedo V. D. Abdallah Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil Brazilian Journal of Biology environmental parasitology effect bioindication Monogenea fish parasitology host-parasite relationship |
| title | Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil |
| title_full | Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil |
| title_fullStr | Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil |
| title_full_unstemmed | Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil |
| title_short | Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil |
| title_sort | seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern brazil |
| topic | environmental parasitology effect bioindication Monogenea fish parasitology host-parasite relationship |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842023000100470&lng=en&tlng=en |
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