Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams
ABSTRACT This study evaluated gills and liver of Astyanax bifasciatus as histological biomarkers for biomonitoring of streams along areas with different land uses. The fish were collected by electrofishing in six streams in the basin of the lower Iguaçu River. The objective was to correlate the pres...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
2018-03-01
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| Series: | Neotropical Ichthyology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100216&lng=en&tlng=en |
| _version_ | 1818344161736130560 |
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| author | Jardel Nimet João Paulo de Arruda Amorim Rosilene Luciana Delariva |
| author_facet | Jardel Nimet João Paulo de Arruda Amorim Rosilene Luciana Delariva |
| author_sort | Jardel Nimet |
| collection | DOAJ |
| description | ABSTRACT This study evaluated gills and liver of Astyanax bifasciatus as histological biomarkers for biomonitoring of streams along areas with different land uses. The fish were collected by electrofishing in six streams in the basin of the lower Iguaçu River. The objective was to correlate the presence and degree of histopathological alterations of gills and liver with the environmental variables among streams along different land uses. The low frequency of histopathological alterations found in fish from the forest streams suggested normal organ functioning. In fish from the rural and urban streams, the histopathological alterations occurred were in higher frequency, indicated light to moderate damage in gills and liver of fish from the rural streams, and moderate to severe damage in liver of fish from urban streams. The histopathological alterations in gills (lamellar aneurysm) and livers (vascular congestion) verified in impacted streams were significantly more frequent and severe. It was possible to distinguish streams along different land uses, suggesting that these histopathological alterations can be used as biomarkers for biomonitoring studies. The health integrity of fish from streams in forest areas further reinforces the importance of maintaining preservation areas in basins under intensive land use. |
| first_indexed | 2024-12-13T16:42:05Z |
| format | Article |
| id | doaj.art-6d5b87cde15f4379b485e1b234c6a410 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-12-13T16:42:05Z |
| publishDate | 2018-03-01 |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-6d5b87cde15f4379b485e1b234c6a4102022-12-21T23:38:15ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242018-03-0116110.1590/1982-0224-20170129S1679-62252018000100216Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streamsJardel NimetJoão Paulo de Arruda AmorimRosilene Luciana DelarivaABSTRACT This study evaluated gills and liver of Astyanax bifasciatus as histological biomarkers for biomonitoring of streams along areas with different land uses. The fish were collected by electrofishing in six streams in the basin of the lower Iguaçu River. The objective was to correlate the presence and degree of histopathological alterations of gills and liver with the environmental variables among streams along different land uses. The low frequency of histopathological alterations found in fish from the forest streams suggested normal organ functioning. In fish from the rural and urban streams, the histopathological alterations occurred were in higher frequency, indicated light to moderate damage in gills and liver of fish from the rural streams, and moderate to severe damage in liver of fish from urban streams. The histopathological alterations in gills (lamellar aneurysm) and livers (vascular congestion) verified in impacted streams were significantly more frequent and severe. It was possible to distinguish streams along different land uses, suggesting that these histopathological alterations can be used as biomarkers for biomonitoring studies. The health integrity of fish from streams in forest areas further reinforces the importance of maintaining preservation areas in basins under intensive land use.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100216&lng=en&tlng=enBiomarkersFishHistopathologyLotic environmentsUrban impact |
| spellingShingle | Jardel Nimet João Paulo de Arruda Amorim Rosilene Luciana Delariva Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams Neotropical Ichthyology Biomarkers Fish Histopathology Lotic environments Urban impact |
| title | Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams |
| title_full | Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams |
| title_fullStr | Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams |
| title_full_unstemmed | Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams |
| title_short | Histopathological alterations in Astyanax bifasciatus (Teleostei: Characidae) correlated with land uses of surroundings of streams |
| title_sort | histopathological alterations in astyanax bifasciatus teleostei characidae correlated with land uses of surroundings of streams |
| topic | Biomarkers Fish Histopathology Lotic environments Urban impact |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000100216&lng=en&tlng=en |
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