Linking biokinetics and consumer–resource dynamics of zinc accumulation in pond abalone Haliotis diversicolor supertexta

Population models of farmed abalone Haliotis diversicolor supertexta exposed to waterborne zinc

“…When referring to the bioaccumulation of chemical compounds in aquatic organisms, both dietary and soluble sources should be taken into consideration. It is generally recognized that trophic transfer of metals is an important pathway for metal accumulation in marine invertebrates and fishes (Wang and Ke, 2002;Liao et al, 2002b. Liao et al (2002a) simulated whole-body burdens for abalone and an equilibrium value of 166.6 Ag g À1 was obtained when exposing abalone to 1 Ag ml À1 waterborne Zn, indicating a much lower equilibrium value compared to that obtained in the present study (1133.6 Ag g À1 ).…”

Probabilistic risk assessment of abalone Haliotis diversicolor supertexta exposed to waterborne zinc

“…The major Zn exposure data was obtained from the previous studies conducted by Lin and Liao (1999), Liao et al (2002aLiao et al ( ,b, 2003. They chose three appropriate management practices on abalone farms for three different study sites situated at Toucheng, Kouhu, and Anping, respectively, in north, central, and south Taiwan region.…”

“…We used a first-order two-compartment model considered from the viewpoint of consumer-resource dynamics based on the approach developed by Liao et al (2002a) to estimate Zn concentrations in abalone and algae. The scenario (Fig.…”

“…Accordingly, the dynamic behavior corresponding to the graphic model of Fig. 1 would be represented as (Liao et al, 2002a),…”

“…If waterborne Zn levels are elevated, toxicity can occur and has severe effects on the health of abalone, which will reduce market prices and cause closure of abalone farms (Hahn, 1989;Conroy et al, 1996;Knauer et al, 1997). Previous investigations indicated that Zn have been detected in many rivers in that maximum Zn concentrations in aquaculture waters are reported to range from 60 to 300 ng ml À1 in different areas of Taiwan (Lin and Liao, 1999;Liao et al, 2002a). Because few previous studies have evaluated Zn toxicity to H. diversicolor supertexta, the mechanisms involved in the inhibition of growth remain unknown.…”