Hematological analysis of Micropogonias Furnieri, Desmarest, 1823, Scianidae, from two estuaries of Baixada Santista, São paulo Brazil

Abstract

Hematological alterations in fish are considered a useful tool to evaluate pathological processes resulting from the exposure to environmental pollutants. The whitemouth croaker Micropogonias furnieri is a common species in estuarine areas and potentially exposed to many contaminants. In the present study, the hematological characteristics of fish collected at two sites in Baixada Santista (Santos Estuarine System - SES, a polluted site; and the Estuary of Itanhaém River - EIR, unpolluted site) del was analysed. The following blood descriptors were analyzed: number of Erythrocytes (Er), Hematocrit (Ht), Hemoglobin (Hb), Mean Corpuscular Volume (MCV) and Mean Corpuscular Hemoglobin concentration (MCHC). Fish from SES exhibited significant lower levels of Ht and increase on MCHC and Hb. Such differences are likely related to the different contamination levels found in these estuaries.<br>Alterações hematológicas em peixes são consideradas uma importante ferramenta para avaliar processos patológicos decorrentes da exposição a poluentes ambientais. Micropogonias furnieri (Desmarest, 1823) (corvina) é comumente encontrada em regiões estuarinas e eventualmente está exposta a inúmeros contaminantes. No presente estudo foi avaliado o quadro hematológico de indivíduos de M. furnieri coletados na Baixada Santista: o Sistema Estuarino de Santos, considerado poluído, e o estuário do Rio Itanhaém (controle). Foram avaliados o número de Eritrócitos (Er), o Hematócrito (Ht), a taxa de Hemoglobina (Hb), o Volume Corpuscular Médio (VCM) e a Concentração de Hemoglobina Corpuscular Média (CHCM). Nos peixes coletados no Sistema Estuarino de Santos, os níveis de Ht foram significativamente menores, enquanto os níveis de CHCM e Hb foram significativamente mais altos, indicando que os prováveis efeitos estejam atribuídos aos diferentes níveis de contaminação encontrados nos estuários

Differential blood counting in fish as a non-destructive biomarker of water contamination exposure

“…Urban effluents consist of complex mixtures containing many toxic compounds, such as organic substances, pharmaceuticals and personal care products, metals, hydrocarbons, detergents, pesticides, drugs, and other toxic contaminants (Seriani et al 2010;Sibanda, Selvarajan, and Tekere 2015;Pereira et al 2016). However, urban effluents are frequently disposed into the aquatic ecosystems without prior treatment, a process that has biological effects and threatens aquatic organisms and human health alike (Alimba, Saliu, and Ubani-Rex 2015).…”

Influence of seasonality and pollution on the hematological parameters of the estuarine fish Centropomus parallelus

“…1). São Vicente Estuary (SVE) is a part of the Santos Estuarine System, which is considered highly impacted by anthropic interventions and pollution (BOLDRINI;PEREIRA, 1987;MEDEIROS;BÍCEGO, 2004;SIQUEIRA et al, 2005;BÍCEGO et al, 2006;CESAR et al, 2006;HORTELLANI, et al, 2008;MARTINS et al, 2008;KIRSCHBAUM et al, 2009, SERIANI, et al, 2010. The SVE receives mainly domestic pollution from diffuse sources, specially sewage, stormwater and urban drainage, but contamination from domestic and industrial landfills is also considerable (LAMPARELLI et al, 2001).…”

“…The SVE receives mainly domestic pollution from diffuse sources, specially sewage, stormwater and urban drainage, but contamination from domestic and industrial landfills is also considerable (LAMPARELLI et al, 2001). Recent data on the SVE have shown that the discharge of contaminants from land-based sources has increased the concentration of several substances, many of which are already present in concentrations high enough to cause biological risks (LAMPARELLI et al, 2001;ABESSA et al, 2008;KIRSCHBAUM et al, 2009;SERIANI et al, 2010, PEREIRA, et al,2012. On the other hand, the Cananéia Estuary (CAN) presents lower levels of contaminants.…”

Microscopy and Microanalysis of Hematological Parameters in Common Carp, Cyprinus carpio, Inhabiting a Polluted Lake in North East India

“…The use of hematological parameters as indicators of fish health has been suggested by Hesser (1960). Hematological alterations in fish are considered a useful tool to evaluate pathological processes resulting from exposure to environmental pollutants (Seriani et al, 2010, 2011). Exposure to pollutants, pathogens, environmental stress, etc.…”