Toxicity assessment of crude oils: A methodological view

As a continuity of efforts in the field of laboratory ecotoxicological studies of oil on marine organisms, the present work contains data showing to what extent the observed toxicity of two chemically dispersed crude oils (arabian light and heavy) on well succeeded fish culture species (Lebistes reticulatus) is tightly dependent on the instantaneous measured oil concentration in the bioassay media rather than the initial applied concentrations.