Effects of sublethal concentrations of tobacco (Nicotiana tobaccum) leaf dust on some biochemical parameters of Hybrid catfish (Clarias gariepinus and Heterobranchus bidorsalis)

Abstract

The aim of this work was to study the effect of tobacco (Nicotiana tobaccum) leaf dust at sublethal concentrations (375.6, 187.8, 93.9

Enzymatic responses of Clarias gariepinus (Burchell, 1822) exposed to sub-lethal concentrations of an oilfield wastewater

“…Water quality parameters such as temperature, dissolved oxygen, free carbon (iv) oxide, pH, alkalinity and conductivity are important and affect fish health, growth and reproduction [43,44]. The characteristics of the oilfield wastewater used in this study have been evaluated by Akani and Gabriel [45]; the values agree with that of Wemedo et al [12], but differ from that of Obire and Amusan [2].…”

Evaluation of Metabolites of <i>Clarias gariepinus</i> Exposed to Sub-Lethal Concentrations of Oilfield Wastewater

“…Water quality parameters such as temperature, dissolved oxygen, free carbon (IV) oxide, pH, alkalinity and conductivity are important and affect fish health, growth and reproduction [14,28]. However, Richards [29] reported that the main cause of mortality in aquarium fish was the inadequate maintenance of the water environment.…”

“…Total protein is an important constituent of all the cells and tissues which play vital role in the physiology of living organism [14]. Since the fishes have little carbohydrate, protein is used to meet the increase in the energy demand.…”

“…Concentrations of Oilfield Wastewater These biomarkers have been effectively and extensively used to assess the impacts of a large number of environmental contaminants [10] on fishes generally, and also in the clariids [11,12,13,14,15,16]. Very few reports are available on the effects of oilfield wastewaterson fishes which include impacts on the mycology [17], bacterial flora [18], haematology [19], organ indices [20] and enzymes [21] of C. gariepinus.…”

The Influence of Heavy Metal Ions on the Viability and Metabolic Enzyme Activity of the Marbled Crayfish <i>Procambarus virginalis</i> (Lyko, 2017)

“…Certain toxicants during the long-term influence on the organism of aquatic animals contribute to a decrease in the content of proteins [50][51][52][53], which negatively affects the synthesis of proteins [54]. Reduced protein content in the muscles is associated with the utilization of these compounds for the process of gluconeogenesis [55,56]. As the toxicity of the medium increases, the protein content in the tissues of hydrobionts decreases [57][58][59][60].…”