Staff View: Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon

Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon

The frequency of spontaneous micronucleus (MN) formation in fish species needs to be determined to evaluate their usefulness for genotoxic biomonitoring. The definition of a good bioindicator takes into account the current knowledge of its metabolic traits as well as other factors including its feed...

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Main Authors:	Melo, Karina Motta, Alves, Ingrid Reale, Pieczarka, Julio Cesar, David, José Augusto de Oliveira, Nagamachi, Cleusa Yoshiko, Grisolia, Cesar Koppe
Format:	Artigo
Language:	English
Published:	Sociedade Brasileira de Genética 2017
Subjects:	Monitoramento biológico Genotoxicidade Peixe Amazônia Eritrócitos
Online Access:	http://repositorio.unb.br/handle/10482/28963 https://dx.doi.org/10.1590/S1415-47572013005000032
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spelling	ir-10482-289632020-08-20T13:25:56Z Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon Melo, Karina Motta Alves, Ingrid Reale Pieczarka, Julio Cesar David, José Augusto de Oliveira Nagamachi, Cleusa Yoshiko Grisolia, Cesar Koppe Monitoramento biológico Genotoxicidade Peixe Amazônia Eritrócitos The frequency of spontaneous micronucleus (MN) formation in fish species needs to be determined to evaluate their usefulness for genotoxic biomonitoring. The definition of a good bioindicator takes into account the current knowledge of its metabolic traits as well as other factors including its feeding behavior and relationship to the environment. In this study, we compared the basal frequencies of micronucleated erythrocytes and nuclear abnormalities (NA) among different species of the fish Order Gymnotiformes (Rhamphichthys marmoratus, Steatogenys elegans, Sternopygus macrurus, Parapteronotus hasemani, Gymnotus mamiraua, Gymnotus arapaima, Brachyhypopomus beebei, Brachyhypopomus n. sp. BENN) sampled in several localities of the Eastern Amazon. A baseline of MN and NA frequency in these fish was determined, enabling the identification of potentially useful species as models for genotoxicity studies. Only one impacted sample collected at a site in the River Caripetuba showed a significant number of NAs, which may be due to the release of wastewater by neighbouring mining industries and by the burnt fuel released by the small boats used by a local community. Our results may provide support for further studies in areas of the Eastern Amazon affected by mining, deforestation and other anthropogenic activities. 2017-12-07T05:03:44Z 2017-12-07T05:03:44Z 2013-08 Artigo MELO, Karina Motta et al. Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon. Genetics and Molecular Biology, São Paulo, v. 36, n. 3 p. 425-429, ago. 2013. DOI: http://dx.doi.org/10.1590/S1415-47572013005000032. Disponível em: https://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300018&lng=en&tlng=en. Acesso em: 07 ago. 2020. http://repositorio.unb.br/handle/10482/28963 https://dx.doi.org/10.1590/S1415-47572013005000032 en Acesso Aberto License information: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf Sociedade Brasileira de Genética
institution	REPOSITORIO UNB
collection	REPOSITORIO UNB
language	English
topic	Monitoramento biológico Genotoxicidade Peixe Amazônia Eritrócitos
spellingShingle	Monitoramento biológico Genotoxicidade Peixe Amazônia Eritrócitos Melo, Karina Motta Alves, Ingrid Reale Pieczarka, Julio Cesar David, José Augusto de Oliveira Nagamachi, Cleusa Yoshiko Grisolia, Cesar Koppe Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon
description	The frequency of spontaneous micronucleus (MN) formation in fish species needs to be determined to evaluate their usefulness for genotoxic biomonitoring. The definition of a good bioindicator takes into account the current knowledge of its metabolic traits as well as other factors including its feeding behavior and relationship to the environment. In this study, we compared the basal frequencies of micronucleated erythrocytes and nuclear abnormalities (NA) among different species of the fish Order Gymnotiformes (Rhamphichthys marmoratus, Steatogenys elegans, Sternopygus macrurus, Parapteronotus hasemani, Gymnotus mamiraua, Gymnotus arapaima, Brachyhypopomus beebei, Brachyhypopomus n. sp. BENN) sampled in several localities of the Eastern Amazon. A baseline of MN and NA frequency in these fish was determined, enabling the identification of potentially useful species as models for genotoxicity studies. Only one impacted sample collected at a site in the River Caripetuba showed a significant number of NAs, which may be due to the release of wastewater by neighbouring mining industries and by the burnt fuel released by the small boats used by a local community. Our results may provide support for further studies in areas of the Eastern Amazon affected by mining, deforestation and other anthropogenic activities.
format	Artigo
author	Melo, Karina Motta Alves, Ingrid Reale Pieczarka, Julio Cesar David, José Augusto de Oliveira Nagamachi, Cleusa Yoshiko Grisolia, Cesar Koppe
author_sort	Melo, Karina Motta
title	Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon
title_short	Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon
title_full	Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon
title_fullStr	Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon
title_full_unstemmed	Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon
title_sort	profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (gymnotiformes) from the eastern amazon
publisher	Sociedade Brasileira de Genética
publishDate	2017
url	http://repositorio.unb.br/handle/10482/28963 https://dx.doi.org/10.1590/S1415-47572013005000032
_version_	1680624720949542912
score	13.657419

Profile of micronucleus frequencies and nuclear abnormalities in different species of electric fishes (Gymnotiformes) from the Eastern Amazon

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