Temperature changes and marine fish species (Epinephelus coioides and Sparus aurata): Role of oxidative stress biomarkers in toxicological food studies

Abstract

The increase of seawater temperature as a result of global climate variation elucidates a major challenge for marine organisms survival in addition to consumers safety. Spotted grouper (Epinephelus coioides) and Seabream (Sparus aurata) were collected in water with different temperature variations at Suez Canal and Alexandria (Suez and Abu Qir bay) in Egypt with the aim to assess expression levels of heat shock proteins such as HSP47, HSP70 and HSP90 genes in addition to antioxidants value through enzymes activity: Glutathione-S-Transferase (GST) and Glutathione Peroxidase (GPx). Research results revealed that expression of the HSP47, HSP70a and HSP90 genes increased in marine fishes tissues collected from Suez Canal, with higher water temperature (23:28ºC), compared with those collected from Alexandria (19:24°C) whereas the content of GPx and GST decreased. Our results show alteration of the marker examined suggesting that the increase of heat shock protein genes expression levels of fish collected from Suez Canal might be exposed mainly to thermal oxidative stress response more than those collect from Alexandria. The increase of heat shock protein-related genes expression could be considered as a factor in prohibiting the heat shock transcription factor that may lead to stimulation of heat-inducible genes in addition to heat acclimation. Thus, warming of water is also likely to alter the composition and abundance of food resources, e.g. fish muscles, available to higher trophic level consumers.

Effects of food type, temperature and salinity on the growth performance and antioxidant status of the longsnout seahorse,Hippocampus reidi

“…Environmental factors, such as temperature and salinity, are known to influence antioxidant status of fish (Guerriero et al, 2018). (Hora & Joyeux, 2009;Hora et al, 2016).…”

“…Environmental factors, such as temperature and salinity, are known to influence antioxidant status of fish (Guerriero et al., 2018). For example, relatively low levels of glutathione peroxidase and glutathione‐S‐transferase were recorded in spotted grouper ( Epinephelus coioides ) and seabream ( Sparus aurata ) captured from a warm area, Suez Canal compared with that of fish collected from Alexandria (cold area) (Guerriero et al., 2018). Liu et al.…”

Advances in Egyptian Mediterranean Coast Climate Change Monitoring

“…In particular, droughts are projected to become more frequent and intense in subtropical and southern temperate forests [13]; this will increase the prevalence of fire and predisposition to pests and pathogens [14][15][16] and acidification of water [17]. As far as biological aspects, there has been much proof of physiological change in antioxidants, as well as steroid receptor defenses, affecting biodiversity [18][19][20][21][22].…”

Fry Survival Rate as a Predictive Marker of Optimal Production of Silver Carp (Hypophthalmichthys molitrix, Valenciennes 1844): A Biostatistical Study in Deroua Fish Farm, Morocco

“…Hence, numerous studies have been conducted to decode the determinants of the quality of fish eggs and their relationship with the survival and growth performance of the larvae. Nutrition, endocrine status, physiological antioxidative defense, temperature, photoperiod, salinity, and pollutants influence the development of aquatic organisms as well as the quality of oocytes (Guerriero et al 2002, Guerriero et al 2004, Guerriero et al 2005, Guerriero et al 2009, De Maio et al 2014, Guerriero et al 2018a, 2018b, 2018c, Parisi and Guerriero 2019, Abdel-Gawad et al 2020, Gentilucci et al 2021, Ariano et al 2021. Intrinsic factors such as maternal age and genetics also directly impact egg quality (Carillo et al 2000;Venturelli et al 2010;Macchi et al 2013).…”