Effect of different intensities of static magnetic field on stress & reproduction in Zebrafish

Authors: Sedigh E, Heidari B, Roozati A, Valipour A

Year: 2019 Jan 9

Category: Environmental Toxicology

Journal: Bulletin of Environmental Contamination and Toxicology

DOI: 10.1007/s00128-018-02538-1

URL: https://www.ncbi.nlm.nih.gov/pubmed/30627748

Abstract

Overview

The application of equipment and tools that produce a magnetic field is increasingly common in aquatic environments. This study explores how zebrafish are affected by these conditions.

Findings

  • Locations of the study involved exposures to static magnetic fields (SMFs) of varying strengths: 2.5, 5, and 7.5 millitesla (mT).
  • The study was conducted over two durations: acute (1 week) and subacute (3 weeks).
  • Key stress and reproductive parameters measured included cortisol, glucose, 17β-estradiol (E2), and 17-α hydroxy progesterone (17-OHP).

Conclusion

The findings demonstrate significant alterations in physiological markers related to stress and reproduction in response to increasing intensities and exposure duration to SMFs. Notably, higher levels of SMF exposure were linked to noticeable adverse effects on the reproductive biology of zebrafish, signaling potential ecological risks in natural aquatic settings.

static magnetic fields zebrafish stress indices reproductive biology aquatic ecosystems
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