To main content

Exposure to low environmental copper concentrations does not affect survival and development in Atlantic cod (Gadus morhua) early life stages

Abstract

In this study we investigated potential impacts of Cu exposure at low, environmentally relevant, concentrations on early live stages of Atlantic cod (Gadus morhua). Cod embryos and larvae were exposed to 0.5 μg/L (low), 2 μg/L (medium), and 6 μg/L (high) Cu from 4 to 17 days post fertilisation (dpf). Hatching success, mortality, oxygen consumption, biometric traits, and malformations were determined. A dynamic energy budget (DEB) model was applied to identify potential impacts on bioenergetics. A positive correlation was found between Cu exposure concentrations and Cu body burden in eggs, but not in larvae. The tested concentrations did not increase mortality in neither embryos nor larvae, or larvae deformations. Further, the DEB model did not indicate effects of the tested Cu concentrations.
Read the publication

Category

Academic article

Language

English

Author(s)

Affiliation

  • SINTEF Ocean / Climate and Environment
  • SINTEF Ocean / Fisheries and New Biomarine Industry
  • Netherlands
  • Norwegian University of Science and Technology
  • Nord University
  • Diverse norske bedrifter og organisasjoner

Year

2021

Published in

Toxicology reports

Volume

8

Page(s)

1909 - 1916

View this publication at Norwegian Research Information Repository