Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp

In this study we tested the toxicity of bulk sediment from the northeastern area of Todos os Santos Bay, Bahia, Brazil, to evaluate environmental impact induced by 50 years of exposure to the local petroleum industry (Petrobras). Sediment samples were collected during one year, at three-month interv...

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Autors principals:	Evangelista, AJA, Nascimiento, IA, Pereira, SA, Lopes, MBNL, Martins, LKP, Fillmann, G
Format:	info:eu-repo/semantics/article
Idioma:	eng
Publicat:	Iniversidad Autónoma de Baja California 2005
Matèries:	bulk sediment biomonitoring penaeid PL bioassay petroleum impact hydrocarbon levels sedimento marino biomonitoreo bioensayo con postlarvas de peneidos impacto por petróleo niveles de hidrocarburos
Accés en línia:	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/79
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id	repositorioinstitucional-20.500.12930-7322
record_format	dspace
institution	Repositorio Institucional
collection	DSpace
language	eng
topic	bulk sediment biomonitoring penaeid PL bioassay petroleum impact hydrocarbon levels sedimento marino biomonitoreo bioensayo con postlarvas de peneidos impacto por petróleo niveles de hidrocarburos
spellingShingle	bulk sediment biomonitoring penaeid PL bioassay petroleum impact hydrocarbon levels sedimento marino biomonitoreo bioensayo con postlarvas de peneidos impacto por petróleo niveles de hidrocarburos Evangelista, AJA Nascimiento, IA Pereira, SA Lopes, MBNL Martins, LKP Fillmann, G Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp
description	In this study we tested the toxicity of bulk sediment from the northeastern area of Todos os Santos Bay, Bahia, Brazil, to evaluate environmental impact induced by 50 years of exposure to the local petroleum industry (Petrobras). Sediment samples were collected during one year, at three-month intervals, from four sites in areas of oil extraction (Ilha das Fontes, station 4), transportation (Ilhas de Madre de Deus and Pati, stations 2 and 3) and refinement (RELAM, station 1). Two reference stations (5 and 6) were located outside the petroleum influence area, to the south of the bay. Static bioassays were conducted for 96 h, using 7–8 day old Litopenaeus vannamei postlarvae (PL). The assays were conducted in 2.5 L plastic jars containing 200 g of surface (1 cm deep) bulk sediment covered by 2 L of dilution water (filtered seawater, 28 ppt salinity, 27 + 2ºC and DO under saturation). Fifteen exposed PL in each jar were fed daily on 60 recently hatched Artemia salina nauplii. Physico-chemical parameters were monitored. Mortality and dry weight gain were taken as end-points. The PL mortality data obtained for sediment from the Petrobras stations in comparison to the data from the reference stations were not significantly different (P > 0.05); however, the dry weight gain showed significant differences among stations. A maximum value was reached at station 5 (reference area) and a minimum at station 1 (RELAM refinery). Stations 2 and 3 in petroleum transportation areas did not show significant differences (P > 0.05). To evaluate the sensitivity of this bulk-sediment test in detecting contaminant effects generated by the petroleum industry, the toxicity data were considered in terms of the hydrocarbon levels analyzed in sediments from the same Petrobras areas and in one of the control areas, located outside the bay. The results support the assumption that the bulksediment bioassay on penaeid PL is a suitable methodology not only to distinguish between impacted and relatively unperturbed environments, but also to separate the different degrees of impact among areas subjected to petroleum industry activities in the coastal environment.
format	info:eu-repo/semantics/article
author	Evangelista, AJA Nascimiento, IA Pereira, SA Lopes, MBNL Martins, LKP Fillmann, G
author_facet	Evangelista, AJA Nascimiento, IA Pereira, SA Lopes, MBNL Martins, LKP Fillmann, G
author_sort	Evangelista, AJA
title	Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp
title_short	Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp
title_full	Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp
title_fullStr	Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp
title_full_unstemmed	Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp
title_sort	assessing the potential toxicity of marine sediments found in petroleum industry areas: a new approach based on responses of postlarval shrimp
publisher	Iniversidad Autónoma de Baja California
publishDate	2005
url	https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/79
_version_	1792610211815489536
spelling	repositorioinstitucional-20.500.12930-73222023-05-09T14:30:57Z Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp Evaluación del potencial de toxicidad de sedimentos marinos en áreas de la industria petrolera: Un nuevo método basado en respuestas de postlarvas de camarones Evangelista, AJA Nascimiento, IA Pereira, SA Lopes, MBNL Martins, LKP Fillmann, G bulk sediment biomonitoring penaeid PL bioassay petroleum impact hydrocarbon levels sedimento marino biomonitoreo bioensayo con postlarvas de peneidos impacto por petróleo niveles de hidrocarburos In this study we tested the toxicity of bulk sediment from the northeastern area of Todos os Santos Bay, Bahia, Brazil, to evaluate environmental impact induced by 50 years of exposure to the local petroleum industry (Petrobras). Sediment samples were collected during one year, at three-month intervals, from four sites in areas of oil extraction (Ilha das Fontes, station 4), transportation (Ilhas de Madre de Deus and Pati, stations 2 and 3) and refinement (RELAM, station 1). Two reference stations (5 and 6) were located outside the petroleum influence area, to the south of the bay. Static bioassays were conducted for 96 h, using 7–8 day old Litopenaeus vannamei postlarvae (PL). The assays were conducted in 2.5 L plastic jars containing 200 g of surface (1 cm deep) bulk sediment covered by 2 L of dilution water (filtered seawater, 28 ppt salinity, 27 + 2ºC and DO under saturation). Fifteen exposed PL in each jar were fed daily on 60 recently hatched Artemia salina nauplii. Physico-chemical parameters were monitored. Mortality and dry weight gain were taken as end-points. The PL mortality data obtained for sediment from the Petrobras stations in comparison to the data from the reference stations were not significantly different (P > 0.05); however, the dry weight gain showed significant differences among stations. A maximum value was reached at station 5 (reference area) and a minimum at station 1 (RELAM refinery). Stations 2 and 3 in petroleum transportation areas did not show significant differences (P > 0.05). To evaluate the sensitivity of this bulk-sediment test in detecting contaminant effects generated by the petroleum industry, the toxicity data were considered in terms of the hydrocarbon levels analyzed in sediments from the same Petrobras areas and in one of the control areas, located outside the bay. The results support the assumption that the bulksediment bioassay on penaeid PL is a suitable methodology not only to distinguish between impacted and relatively unperturbed environments, but also to separate the different degrees of impact among areas subjected to petroleum industry activities in the coastal environment. Se evaluó la toxicidad de sedimentos del área del noreste de la Bahía de Todos os Santos, Bahía, Brasil, para evaluar el impacto ambiental inducido por 50 años de actividad industrial petrolera (Petrobras). Se recolectaron muestras de sedimento durante un año, con intervalos de tres meses, en cuatro sitios relacionados con áreas de extracción (Ilha das Fontes, estación 4), transporte (Ilhas de Madre de Deus y Pati, estaciones 2 y 3) y refinación del petróleo (RELAM, estación 1). Dos estaciones de referencia (5 y 6) se localizaron fuera del área de influencia del petróleo, al sur de la bahía. Se llevaron a cabo bioensayos estáticos por 96 h, usando postlarvas (PL) de Lytopenaeus vannamei con 7 a 8 días de desarrollo. El ensayo fue realizado en contenedores con 200 g de sedimento superficial (1 cm de profundidad) y 2 L de agua (agua de mar filtrada, 28 ppm de salinidad, 27 ± 2ºC y DO bajo saturación). Se alimentaron 15 PL en los contenedores diariamente con 60 nauplios de Artemia salina. Se monitorearon parámetros químicos. La mortalidad y la ganancia en peso seco fueron tomadas como parámetros de validación (end point). Los datos de mortalidad obtenidos de los sedimentos de las estaciones de Petrobras no mostraron diferencias significativas, en comparación con las estaciones de referencia; sin embargo, la ganancia en peso seco mostró diferencias significativas entre estaciones. El valor máximo se alcanzó en la estación 1 (refinería RELAM). Las estaciones 2 y 3 de las áreas de transporte de petróleo no mostraron diferencias significativas. Para evaluar la sensibilidad de la prueba del sedimento para detectar contaminación por la industria petrolera, los datos de toxicidad fueron considerados en términos de niveles de hidrocarburos analizados en dichos sedimentos en las áreas de Petrobras y una de las áreas de control, localizada fuera de la bahía. Los resultados indican que el ensayo de sedimentos con PL de peneidos es una metodología adecuada, no sólo para distinguir entre los medios impactados y relativamente no perturbados, sino también para separar los diferentes grados de impacto entre áreas sujetas a actividades de la industria petrolera en el ambiente costero. 2005-03-06 2021-06-03T03:54:54Z 2021-06-03T03:54:54Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/79 10.7773/cm.v31i11.79 https://hdl.handle.net/20.500.12930/7322 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/79/59 application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 31 No. 1A (2005); 43-55 Ciencias Marinas; Vol. 31 Núm. 1A (2005); 43-55 2395-9053 0185-3880

Assessing the potential toxicity of marine sediments found in petroleum industry areas: A new approach based on responses of postlarval shrimp

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