Seasonal changes in stress biomarkers of an exotic coastal species – Chaetopleura angulata (Polyplacophora) – Implications for biomonitoring

Diana Madeira, Catarina Vinagre, Vanessa Mendonça, Mário Sousa Diniz

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Knowledge on baseline values of stress biomarkers in natural conditions is urgent due to the need of reference values for monitoring purposes. Here we assessed the cellular stress response of the chiton Chaetopleura angulata in situ. Biomarkers commonly used in environmental monitoring (heat shock protein 70 kDa, total ubiquitin, catalase, glutathione-S-transferase, superoxide-dismutase, lipid peroxidation) were analyzed in the digestive system, gills and muscle of C. angulata, under spring and summer conditions in order to assess seasonal tissue-specific responses. Season had an effect on all targeted organs, especially affecting the digestive system which displayed clear seasonal clusters. The respective Integrated Biomarker Response (IBR) showed a 7.2-fold seasonal difference. Muscle and gills showed similar IBRs between seasons making them appropriate organs to monitor chemical pollution as they were less responsive to seasonal variation. The most stable biomarkers in these organs were ubiquitin and superoxide-dismutase thus being reliable for monitoring purposes.

Original languageEnglish
Pages (from-to)401-408
Number of pages8
JournalMarine Pollution Bulletin
Volume120
Issue number1-2
DOIs
Publication statusPublished - 15 Jul 2017

Keywords

  • Biomonitoring
  • Cellular stress response
  • Environmental change
  • Environmental quality assessment
  • Intertidal

Fingerprint Dive into the research topics of 'Seasonal changes in stress biomarkers of an exotic coastal species – Chaetopleura angulata (Polyplacophora) – Implications for biomonitoring'. Together they form a unique fingerprint.

  • Cite this