Levels of environmental pollutants in flounder (Platichthys flesus L.) and cod (Gadus morhua L.) caught in the waterway of Glomma, Norway. II. Mercury and arsenic

1993 ◽  
Vol 24 (2) ◽  
pp. 187-193 ◽  
Author(s):  
G. Staveland ◽  
I. Marthinsen ◽  
G. Norheim ◽  
K. Julshamn
2020 ◽  
Vol 22 (4) ◽  
pp. 1057-1070 ◽  
Author(s):  
Wiesława Ruczyńska ◽  
Joanna Szlinder-Richert ◽  
Tomasz Nermer

The aim of this study was to analyze the accumulation of nonylphenols (NPs) and nonylphenol ethoxylates (NPEOs) in the muscles, liver, and bile of flounder (Platichthys flesus), cod (Gadus morhua), and eels (Anguilla anguilla).


2021 ◽  
Author(s):  
Marta Eide ◽  
Xiaokang Zhang ◽  
Odd André Karlsen ◽  
Jared V. Goldstone ◽  
John Stegeman ◽  
...  

Abstract How an organism copes with chemicals is largely determined by the genes and proteins that collectively function to defend against, detoxify and eliminate chemical stressors. This integrative network includes receptors and transcription factors, biotransformation enzymes, transporters, antioxidants, and metal- and heat-responsive genes, and is collectively known as the chemical defensome. Although the types of defensome genes are generally conserved in animals, there are important differences in the complement and function of specific genes between species. Teleost fish is the largest group of vertebrate species and can provide valuable insights into the evolution and functional diversity of defensome genes.In this study, we compared the genes comprising the chemical defensome of five fish species that span the teleosteii evolutionary branch often used as model species in toxicological studies and environmental monitoring programs: zebrafish (Danio rerio), Atlantic cod (Gadus morhua), medaka (Oryzias latipes), Atlantic killifish (Fundulus heteroclitus) and three-spined stickleback (Gasterosteus aculeatus). Genome miningrevealed evolved differences in the number and composition of defensome genes that can have implication for how these species sense and respond to environmental pollutants. The results indicate that knowledge regarding the diversity and function of the defensome will be important for toxicological testing and risk assessment studies.


2018 ◽  
Vol 133 ◽  
pp. 65-76 ◽  
Author(s):  
Roberta Valskienė ◽  
Janina Baršienė ◽  
Laura Butrimavičienė ◽  
Wlodzimierz Grygiel ◽  
Virmantas Stunžėnas ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marta Eide ◽  
Xiaokang Zhang ◽  
Odd André Karlsen ◽  
Jared V. Goldstone ◽  
John Stegeman ◽  
...  

AbstractHow an organism copes with chemicals is largely determined by the genes and proteins that collectively function to defend against, detoxify and eliminate chemical stressors. This integrative network includes receptors and transcription factors, biotransformation enzymes, transporters, antioxidants, and metal- and heat-responsive genes, and is collectively known as the chemical defensome. Teleost fish is the largest group of vertebrate species and can provide valuable insights into the evolution and functional diversity of defensome genes. We have previously shown that the xenosensing pregnane x receptor (pxr, nr1i2) is lost in many teleost species, including Atlantic cod (Gadus morhua) and three-spined stickleback (Gasterosteus aculeatus), but it is not known if compensatory mechanisms or signaling pathways have evolved in its absence. In this study, we compared the genes comprising the chemical defensome of five fish species that span the teleosteii evolutionary branch often used as model species in toxicological studies and environmental monitoring programs: zebrafish (Danio rerio), medaka (Oryzias latipes), Atlantic killifish (Fundulus heteroclitus), Atlantic cod, and three-spined stickleback. Genome mining revealed evolved differences in the number and composition of defensome genes that can have implication for how these species sense and respond to environmental pollutants, but we did not observe any candidates of compensatory mechanisms or pathways in cod and stickleback in the absence of pxr. The results indicate that knowledge regarding the diversity and function of the defensome will be important for toxicological testing and risk assessment studies.


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