|The impact of crude oil and oil dispersants on the marine oligochaete Marionina subterranea|
Giere, O. (1980). The impact of crude oil and oil dispersants on the marine oligochaete Marionina subterranea. Cah. Biol. Mar. 21(1): 51-60
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
Survival of the ubiquitous marine interstitial oligochaete M. subterranea in short-term experiments with 'Arabian Light' crude oil was in correspondance with the fairly high resistance of the species in field studies: concentrations of 1,000 ppm crude had only little negative effect. Whereas pure solutions of the old-type dispersant Marlophen 86.5 F were highly toxic even in low concentrations, their toxicity was somewhat lowered in dispersions with crude oil. In modern agents (Corexit 7664, Finasol OSR-2 and OSR-5), mortality usually was very low, but increased in mixtures with oil. Combinations of several modern dispersants seem to cause synergistic noxious effects. Based on these results, effects of oil spills on life conditions of littoral meiofauna are considered.