Changes and variations of polycyclic aromatic hydrocarbon concentrations in fish, barnacles and crabs following an oil spill in a mangrove of Guanabara Bay, Southeast Brazil.
On April 26th, 2005, an accident caused a leak of 60,000L of Diesel Oil Type "B", freighted by train wagons upstream on a mangrove area within Guanabara Bay, Southeast Brazil. After the accident, samples from animals with different biological requirements were collected in order to monitor polycyclic aromatic hydrocarbons concentrations for the following 12months. Sessile, mobile, carnivorous, omnivorous, organic detritus feeders, planktivorous and suspension feeders were some of the attributes compared. Concentrations of PAHs did not vary in relation to different dietary habits and the best response was from the sessile suspensivorous barnacles. A background level of <50microgkg(-1) was suggested based on the reference site and on values observed in the following months after the accident. The highest values of PAH concentrations were observed in barnacles in the first month immediately after the spill, decreasing to background levels after few months. Barnacles are suggested as a sentinel species.
Laboratório de Ecologia de Sedimento, Departamento de Biologia Marinha, Universidade Federal Fluminense, Caixa Postal 100644, Niterói, RJ 24001-970, Brazil.
Abílio
A
Soares-Gomes
Roberta L
RL
Neves
Ricardo
R
Aucélio
Paulo H
PH
Van Der Ven
Fábio B
FB
Pitombo
Carla L T
CL
Mendes
Roberta L
RL
Ziolli
D000818:Animals; D003386:Brachyura / Q000378:metabolism*; D001938:Brazil; D055884:Chemical Hazard Release; D017753:Ecosystem; D004781:Environmental Exposure / Q000032:analysis; D004784:Environmental Monitoring; D005399:Fishes / Q000378:metabolism*; D010578:Petroleum / Q000378:metabolism; D011084:Polycyclic Aromatic Hydrocarbons / Q000378:metabolism*; D043982:Rhizophoraceae; D001468:Thoracica / Q000378:metabolism*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D010578:Petroleum; D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical