Exposure to contaminants exacerbates oxidative stress in amphipod Monoporeia affinis subjected to fluctuating hypoxia

Sublethal exposure to azamethiphos causes neurotoxicity, altered energy allocation and high mortality during simulated live transport in American lobster

“…However, when ChE was normalized against g of tissue instead of g of protein, shipping no longer had a significant effect on ChE activity. These results are consistent with previous reports of unaltered ChE activity in the amphipod Monoporeia affinis exposed to fluctuating hypoxia (Gorokhovaa et al, 2013). Normalization of muscle ChE on proteins should be used with caution in crustaceans since physiological conditions such as molting or stress at the time of sampling could affect muscle protein content and bias ChE activity results (Stoner, 2012;Xuereb et al, 2009b).…”

Preparation for oxidative stress under hypoxia and metabolic depression: Revisiting the proposal two decades later

“…In the disc abalone, Haliotis discus, hypoxia for 8 h prompted increased expression (mRNAs) of MnSOD, SeGPX, catalase, and thioredoxin (De Zoysa et al, 2009). Exposure of amphipods Monoporeia affinis to hypoxia for 5 or 9 days induced a rise in the activities of catalase and SOD (Gorokhova et al, 2010(Gorokhova et al, , 2013. In a study with Balanus amphitrite barnacles under anoxia, severe hypoxia and mild hypoxia (24 h) resulted in a sharp increase in catalase and SOD activities in larvae and adults (Desai and Prakash, 2009).…”

Pollutant resilience in embryos of the Antarctic sea urchin Sterechinus neumayeri reflects maternal antioxidant status

“…Previous studies have demonstrated oxidative stress in nonpolar marine invertebrates exposed to persistent organic pollutants such as those found in diesel or fuel oil (Almeida et al, 2007;Gorokhova et al, 2013), however few have also examined the parent-to-offspring transfer of impacts or capacities to respond. The parent-to-offspring transfer of a range of contaminantmediated trait changes is not rare in nature (Beckerman et al, 2002), and inter-generational trade-offs may be particularly important in understanding how environmental variables contribute to life history traits (Suryan et al, 2009).…”