English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Environmental pollution is a threat to circadian rhythms of behaviour and physiology of organisms. The daily rhythm of swimming activity in zebrafish  Danio rerio  was studied to evaluate the toxicity of water from Lerma River, in Mexico, as it passed through the city of Salamanca, Guanajuato. Swimming activity along 3 days of acute exposure to polluted water, and then, the activity of the enzyme acetylcholinesterase and the oxidative stress in homogenized tissue was tested. Exposure to polluted water drastically reduces magnitude and alters the daily pattern of swimming activity. Cosinor analysis shows effect on mesor and robustness of rhythms,  Tissue analysis showed a negative effect on AChE or an increase on oxidative stress. The analysis of water ions Al, P, F − , PO 43- , SO 42-  in concentrations above the established in the official references. We discuss that daily swimming activity in zebra fish is useful to test water quality in polluted environments.

The daily locomotor activity profile of Zebrafish Danio rerio is affected when exposed to polluted water from Lerma River (Guanajuato, Mexico)