Organotropism of total mercury (THg) in Cichla pinima, ecological aspects and human consumption in fish from Amazon region, Brazil

dc.creatorAZEVEDO, JULIANA de S.
dc.creatorHORTELLANI, MARCOS A.
dc.creatorSARKIS, JORGE E. de S.
dc.date2019
dc.date2019-08-02T18:40:47Z
dc.date2019-08-02T18:40:47Z
dc.date.accessioned2023-09-28T14:11:17Z
dc.date.available2023-09-28T14:11:17Z
dc.identifier0944-1344
dc.identifierhttp://repositorio.ipen.br/handle/123456789/30017
dc.identifier26
dc.identifier10.1007/s11356-019-05303-x
dc.identifier0000-0002-6745-8185
dc.identifier62.830
dc.identifier73.67
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9000255
dc.descriptionSpecimens of the Cichla pinima are of ecological and economic importance in the Amazon region and are a good bioindicator species of Hg bioaccumulation. Adult specimens of Cichla pinima were obtained by fisheries in the Tapaj??s river region???s impacted gold mining area. Tissues such as muscle, liver, skin, and gill were submitted for total mercury (THg) analysis. For hepatic bioavailability, assays were carried out in the whole liver and in the sub-cellular hepatic fraction. The weight???length relationship showed an equation ofW= 2E??? 06L3.3002 (R2 = 0.856) indicating an allometric growth. The mean THg values found in the muscle tissue of 676 ?? 258 ??g kg???1 were below the maximum limit established for human consumption, but were similar to Cichla fish from other areas impacted by Hg in the Amazon region. The trends of levels in the tissues were as follows: liver>muscle>gonads>skin>gill, with no significant differences between the gills and skin. A significant and positive correlation as rs = 0.65 was obtained between the THg contents in cytosolic fraction and the total hepatic THg (liver homogenate). However, only 7% of the THg were found and were available to the sub-cellular hepatic fraction. This profile can be an indicative of a hepatic cellular transference in fish exposed to high Hg levels in the Amazon region now that low concentrations of Hg have been found in the sub-cellular fraction. However, data of differential THg partition in the subcellular compartments should be considered, since others??? hepatic fractions can act in the Hg linkage into the cell.
dc.descriptionFunda????o de Amparo ?? Pesquisa do Estado de S??o Paulo (FAPESP)
dc.descriptionFAPESP: 08/58261-6
dc.format21363-21370
dc.relationEnvironmental Science and Pollution Research
dc.rightsopenAccess
dc.subjectfishes
dc.subjectamazon river
dc.subjectbrazil
dc.subjectmercury
dc.subjectconcentration ratio
dc.subjectenvironmental impacts
dc.titleOrganotropism of total mercury (THg) in Cichla pinima, ecological aspects and human consumption in fish from Amazon region, Brazil
dc.typeArtigo de peri??dico
dc.coverageI


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