Gill Histopathological Biomarkers in Fish Exposed to Trace Metals in the Todos os Santos Bay, Brazil.

Autor: Oliveira HHQ; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil., Reis-Filho JA; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil., Nunes JACC; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil., Dos Santos RM; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil., de F Esteves Santiago E; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil., Aguilar L; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil., de Mello Affonso PRA; Departamento de Ciências Biológicas, Universidade Estadual Do Sudoeste da Bahia (UESB), Campus de Jequié, Jequié, BA, 45205-490, Brazil., da Cruz AL; Instituto de Biologia, Universidade Federal da Bahia (UFBA), Barão de Jeremoabo, 147, Salvador, BA, 40170-115, Brazil. cruz.andre@ufba.br.
Jazyk: angličtina
Zdroj: Biological trace element research [Biol Trace Elem Res] 2022 Jul; Vol. 200 (7), pp. 3388-3399. Date of Electronic Publication: 2021 Sep 29.
DOI: 10.1007/s12011-021-02930-9
Abstrakt: Histopathologies are widely recognized as biomarkers of environmental pollution. In this sense, we evaluated the putative relationship of gill histopathologies and distinct ecological impacts in two regions of Todos os Santos Bay (BTS), Brazil, the largest bay in Northeastern Brazil, South Atlantic. We compared the presence and concentration of metals (Al, As, Ba, Cd, Co, Cr, Cu, Fe, Mn, Mo, Ni, Pb, V, and Zn) in water, sediments, and gills and gill histopathologies of a demersal fish (Diapterus rhombeus) and a benthic fish (Ogcocephalus vespertilio). As expected, fish and sediment samples from historically contaminated areas (Aratu) showed more remarkable traces of metals than apparently low-impact areas (Jaguaripe). Likewise, the DTC (degree of tissue change) index and the volume densities were higher in fish caught in Aratu. In addition, the Diapterus rhombeus species showed more potential than Ogcocephalus vespertilio for risk assessment as it showed more responses to the environment reflected on more histopathologies. These data support the effectiveness of incorporating functional gill morphology to monitor impacts on estuarine biota that can be used as a reference to improve the management of ecosystems and prevent harm to human health.
(© 2021. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.)
Databáze: MEDLINE
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