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Physiological Energetics
Published in Alan G. Heath, Water Pollution and Fish Physiology, 2018
The term “hormesis” refers to an overcompensation to some inhibitory challenge. It was seen in crab zoeae which grew faster after being exposed for 5 days to petroleum hydrocarbons (Laughlin et al., 1981). Note that the exposure was for only 5 days, which simulates an oil spill. Compensatory growth has also been seen in larval or juvenile fish subjected to starvation or reduced ration and then given food ad lib (Weatherley and Gill, 1981; Dabrowski et al., 1986; Miglavs and Jobling, 1989). In one study (Miglavs and Jobling, 1989), compensatory growth was associated with improved food conversion efficiency.
Lung Mechanobiology
Published in Jiro Nagatomi, Eno Essien Ebong, Mechanobiology Handbook, 2018
Daniel J. Tschumperlin, Francis Boudreault, Fei Liu
The effects of stretch, as the central physical change required for lung inflation, continue to dominate lung mechanobiological investigation at organ and cellular scales. At the whole organ scale, the effects of stretch are manifested in three major settings: lung development, compensatory growth, and injury.
Assessing climate change impacts on North American freshwater habitat of wild Atlantic salmon - urgent needs for collaborative research
Published in Canadian Water Resources Journal / Revue canadienne des ressources hydriques, 2023
Carole-Anne Gillis, Valerie Ouellet, Cindy Breau, Danielle Frechette, Normand Bergeron
Although salmon can survive elevated water temperatures during the summer, repeated thermal stress during the growth season can lead to reduced or even no growth. After a period of growth rate reduction, an organism can restore its growth trajectory by compensatory growth if conditions become favorable. Several factors can lead to compensatory growth in fish, such as periods of low food availability, hypoxic conditions, and unseasonably cool or warm water temperatures (Ali, Nicieza, and Wootton 2003; Jonsson and Jonsson 2009). Higher frequency of thermal stress events in freshwater, resulting from climate change and other human-induced activities, is expected to reduce growth rates (e.g. Swansburg et al. 2002), with potential adverse effects on survival in freshwater and marine environments.
Effects of 17α-ethinylestradiol on the neuroendocrine gonadotropic system and behavior of European sea bass larvae (Dicentrarchus labrax)
Published in Journal of Toxicology and Environmental Health, Part A, 2023
S Soloperto, S Olivier, A Poret, C Minier, MP Halm-Lemeille, C Jozet-Alves, S Aroua
In fish, growth is rather “plastic” and depends upon environmental and endogenous factors (Weatherley 1990). In our study, larvae exposed to 50 nM EE2 exhibited a lower standard length than controls at the end of the exposure period (results consistent in both experiments, Supplementary Data I-a), and this difference was no longer found after the depuration period. Evidence indicates that compensatory growth may have occurred after removal of the stressor EE2. It is noteworthy that both stimulatory and inhibitory effects on fish growth were previously reported. Chen et al. (2017) in juvenile yellow catfish reported that exposure to EE2 induced an increase in growth rate while in subadult fathead minnow, Länge et al. (2001) noted a decrease in standard length following EE2 treatment. Regarding compensatory growth, this phenomenon was observed in zebrafish (Xu et al. 2008) and mangrove rivulus (Kryptolebias marmoratus) (Voisin et al. 2016) following exposure to EE2 and subsequent a recovery period. In contrast, Gorshkov et al. (2004) did not find this in juvenile sea bass. The timing (age of exposure), the intensity and duration of the stress period appear to be important factors leading to the occurrence of compensatory growth (Hector and Nakagawa 2012).