Experimental Studies on Lead Accumulation in the Eel-Specific Endoparasites Anguillicola crassus (Nematoda) and Paratenuisentis ambiguus (Acanthocephala) as Compared with Their Host, Anguilla anguilla

The effect of salinity and the mode of application (oral versus aqueous) on the lead accumulation in different tissues of the fish host eel (Anguilla anguilla) and its parasites Anguillicola crassus (Nematoda) and Paratenuisentis ambiguus (Acanthocephala) was investigated. Waterborne as well as dietary lead exposure caused an increase in the metal levels of different eel tissues and the parasites. The mode of lead application had a significant influence on the distribution of lead in the fish tissues. No significant difference on the lead concentration due to water salinity was found for the fish tissues.