The time course of silver accumulation in rainbow trout during static exposure to silver nitrate: physiological regulation or an artifact of the exposure conditions?

Copper uptake and depuration by juvenile and adult Florida apple snails (Pomacea paludosa)

“…The values of t d0.5 and t d0.9 (time to depurate 50% and 90% accumulated Cu) ranged from 10 to 14 days and 15 to 34 days, respectively. In general, uptake and depuration kinetics are similar to the results found in the literature for aquatic organisms (Grosell et al 1996;Lorenzo et al 2005;Schultz et al 1980;Yu and Wang 2002;Morgan et al 2004;Blackmore and Wang 2004). However, the exposure time needed for whole body Cu to reach the saturation level (related to k u ) and the depuration rate constant (k d ) may vary depending on the organisms and metals.…”

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“…The present results showed that both Ca 2+ and Pb 2+ alone and in combination were able to alter ATPase activities in tissues of O. niloticus, as supported by previous studies (Ay et al, 1999;Morgan et al, 2004;Silvestre et al, 2005;Canli, 2007, 2011b;Baysoy et al, 2013;Saglam et al, 2013). Rogers et al (2003) indicated that inhibitory effects of Pb 2+ on gill Na + /K + -ATPase might be connected with the disturbance of the ion homeostasis rather than membrane rupture, respiratory failure or acid-base disturbance.…”

Radiotracer Studies on Waterborne Copper Uptake, Distribution, and Toxicity in Rainbow Trout and Yellow Perch: A Comparative Analysis

“…These peaks were observed earlier in hard water exposures relative to those in soft water. This 12 h instability in new metal uptake dynamics to gills has been observed for silver (Ag) binding dynamics to rainbow trout gills (Morgan et al 2004). Therefore, it may be worthwhile to develop BLM binding constants in fish exposed to metals for longer than 3 h-preferably, for 12 h or longer-to avoid the complications of physiological adjustments to exposure conditions at the gill.…”