The Toxicological Effects of Mercury Exposure in Marine Fish

Mercury exposure and its effects on fertility and pregnancy outcome

“…Studies have shown that reproductive effects such as developmental and infertility effects in the infants and foetus are at much lower contents and do not have any remarked effects on adults. Mercury, in its elementary form (Hg 0 ), as well as organic Hg, crosses the placental barrier and reaches the foetus, which can cause developmental defects …”

“…Mercury, in its elementary form (Hg 0 ), as well as organic Hg, crosses the placental barrier and reaches the foetus, which can cause developmental defects. 103 When compared to adults, the newborns and foetus show greater sensitivity to the effects of low contents of Hg exposure because of a less effective blood-brain barrier, higher rate of gastrointestinal absorption, less effective renal excretion and low body-weight with elevated food consumption rate per kilogram of body-weight. 63,104 The study of the relationship between prenatal exposure to Hg and anthropometric characteristics of newborns conducted by Japanese scientists showed a negative relationship between the Hg concentration in the blood of mothers during the first and second trimester of pregnancy and the weight of children at birth (r = −0.134 and −0.119, respectively, P < 0.…”

Chelation of mercury intoxication and testing different protective aspects ofLactococcus lactisprobiotic in African catfish

“…Mercury (Hg) is a very toxic metal even in minute concentrations (Abiaobo et al, 2017). Recent studies have reported many dangerous impacts of Hg for different fish species such as alteration in sperm quality and fertility in Cyprinus carpio ; accumulation in marine fish tissue causing harmful impacts on cells, tissues, proteins, genes and consequently, the survival, growth, and fish behaviour; impairment of the oxidative stress, haematological, immunological, hepatrorenal biomarkers, in addition to an accumulation in soft tissue and behavioural disturbances in African catfish (El‐Bouhy et al, 2021; Hayati et al, 2019; Zheng et al, 2019).…”

Assessing the Ecotoxicity of Copper and Polycyclic Aromatic Hydrocarbons: Comparison of Effects on Paracentrotus lividus and Botryllus schlosseri, as Alternative Bioassay Methods

“…Remediation techniques and strategies for the management of ecotoxicity events require a rapid and precise assessment of contaminants and a clear understanding of their interactions with the marine biota [1]. Adopting effective and rapid toxicity assessment methods is essential to facilitate timely answers and the correct management of exposure events of marine organisms to chemical contaminants, preserving the integrity of ecosystems [2]. Various animal and plant models contribute to the assessment of contaminants in aquatic ecosystems and permit the meeting of rigorous regulatory requirements [3].…”