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. 2006 Oct;65(2):181-7.
doi: 10.1016/j.ecoenv.2005.07.002. Epub 2005 Sep 12.

In situ relationship between energy reserves and steroid hormone levels in Nereis diversicolor (O.F. Müller) from clean and contaminated sites

C Mouneyrac  1 , J Pellerin, A Moukrim, A Ait Alla, C Durou, N Viault
Affiliations

In situ relationship between energy reserves and steroid hormone levels in Nereis diversicolor (O.F. Müller) from clean and contaminated sites

C Mouneyrac et al. Ecotoxicol Environ Saf. 2006 Oct.

Abstract

The aim of this study was to investigate, in situ, the temporal effects of urban effluent discharge on energy reserves and steroid hormone levels in the intrasedimentary worm Nereis diversicolor. Results have shown no differences in energy reserves (glycogen, lipids) in organisms originating from a contaminated site (Oued Souss) and a comparatively clean site (Oualidia). Both sites are located on the Moroccan Atlantic coast. In contrast, steroid hormone (progesterone, testosterone, and 17beta-estradiol) levels were significantly decreased in animals from Oued Souss. The differences in the responses suggest that organisms from the polluted site have been exposed to endocrine disruptors.

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