“…The results also indicate that different species may regulate their Zn body burden at different levels. For example, among earthworms, E. fetida regulates its Zn body concentrations between 100 and 200 mg g À1 dry body weight (Lock and Janssen, 2001;Demuynck et al, 2007) while internal Zn concentrations for E. andrei ranged between 85 and 496 (Van Gestel et al, 1993;Peijnenburg et al, 1999a;Smith et al, 2010), L. rubellus between 416 and 1871 (Ireland, 1979;Hobbelen et al, 2006), D. veneta at approx. 100 (Marinussen et al, 1997b), A. tuberculata up to 400 (Neuhauser et al, 1995), Drawida willsi between 116 and 125 (Panda et al, 1999), and Aporrectodea caliginosa between 676 and 1958 mg g À1 dry body weight (Hobbelen et al, 2006).…”