Avaliação da toxicidade dos sedimentos do sistema estuarino do rio Capibaribe (Pernambuco, Brasil) utilizando o copépodo bentônico Tisbe biminiensis Volkmann Rocco ( 1973)

Abstract

Part of the contaminants that reach the estuaries are deposited in sediments. These compounds may affect survival, fecundity and development of benthic organisms. This study aimed to evaluate the toxicity of the surface sediments from the Capibaribe Estuarine System (CES) on benthic copepod Tisbe biminiensis. Sediment samples were collected in five stations of the CES. Dissolved/dispersed petroleum hydrocarbons (DDPHs) was measured in bottom water samples from the same sites, to estimate the recent input of such compounds. Sub-lethal effects on T. biminiensis were observed for samples collected in front of the Harbor of Recife, in the northern mouth of the Capibaribe River and in the upper portion of the estuary. The DDPHs concentrations recorded in the CES suggest chronic contamination and pointed out the domestic and industrial effluents, and harbor activities, as the main source to this system.

Intratidal variability and transport of petroleum aromatic hydrocarbons in an anthropized tropical estuarine system: the Suape estuary (8.4S 35W)

“…Chrysene has been used in various studies around the world (Atwood et al, 1987;Corbin, 1993;Kornilios et al, 1998;Nayar et al, 2004;Doval et al, 2006). Carmópolis oil comes from a large reserve in the Brazilian northeast: its composition is similar to that of several oils marketed in the area (ANP, 2015) and it is frequently used by Brazilian researchers in coastal and open water investigations (Zanardi et al,1999a;Bícego et al, 2002;Lemos et al, 2014;Maciel et al, 2015b;Arruda-Santos et al, 2018 ). It is, therefore, interesting to report data quantified based on these two standards as this allows both regional (Carmópolis oil) and global (chrysene) comparisons.…”

Evolução da contaminação por metais pesados em sedimentos em área estuarina do rio Capibaribe: uma revisão

“…Os trabalhos realizados no estuário do rio Capibaribe analisaram principalmente sedimentos, caracterizando a presença de metais pesados e compostos como hidrocarbonetos, organoclorados e toxicidade (MACIEL, 2015;MACIEL et al, 2015;SILVA, 2004;. A figura 2 e o quadro 1, respectivamente, apresentam um mapa com a localização dos pontos de amostragem de sedimentos e os elementos químicos relatados pelos autores nesta revisão.…”

Effect of biostimulation treatments on the toxicity of oil-contaminated mangrove sediment

“…Several organisms were usually used to test the ecotoxicological effects of remediation strategies as bacteria, mollusks, annelids, crustaceans (mainly amphipods) and fish (Libralato et al, 2018), but there was no record using benthic copepods for this purpose. Benthic copepods live in close contact with the sedimentary matrix, are sensitive to the anthropogenic input of contaminants (Coull, 1999) and were already used for toxicity evaluation of sediment samples (Bejarano et al, 2004;Lotufo, 1997;Lotufo & Fleeger, 1997;Maciel et al, 2015). As copepods represent a food resource for many predators, it can transfer contaminants to higher trophic levels (Coull, 1990;DiPinto & Coull, 1997).…”

“…As copepods represent a food resource for many predators, it can transfer contaminants to higher trophic levels (Coull, 1990;DiPinto & Coull, 1997). Tisbe biminiensis Volkmann-Rocco 1973 is a benthic copepod that has been cultivated for many years in laboratory (Ribeiro & Souza-Santos, 2011) and nowadays is being used for toxicity tests to assess sediment quality due to its sensitivity to contaminants (Araújo-Castro et al, 2009;Maciel et al, 2015;Oliveira et al, 2014).…”