DOI: 10.1016/j.ecolind.2020.106230
论文题名: Integrative indices for health assessment in reef corals under thermal stress
作者: Dias M. ; Madeira C. ; Jogee N. ; Ferreira A. ; Gouveia R. ; Cabral H. ; Diniz M. ; Vinagre C.
刊名: Ecological Indicators
ISSN: 1470160X
出版年: 2020
卷: 113 语种: 英语
英文关键词: Biochemical biomarkers
; Coral performance
; Environment health assessment
; Global climate change
; Integrated Biomarker Response
; Ocean warming
Scopus关键词: Antioxidants
; Biology
; Ecosystems
; Enzymes
; Global warming
; Oceanography
; Oxidative stress
; Population statistics
; Reefs
; Surface waters
; Thermal stress
; Biochemical biomarkers
; Coral performance
; Global climate changes
; Health assessments
; Integrated biomarker response
; Ocean warming
; Biomarkers
; Anthozoa
英文摘要: Global warming is one of the major causes of reef coral ecosystems’ degradation. Predictions of further rise in sea surface temperatures call for urgent action. In this study, a holistic method for bio-monitoring heat stress in reef ecosystems was tested and optimized. Long-term induction of antioxidant enzymes and oxidative stress by elevated temperatures (30 °C and 32 °C) was assessed on fragments of reef-building corals and compared to control conditions (26 °C). The quantification of both oxidative stress, through lipid peroxidation (LPO) levels, and antioxidant enzyme activities: superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST) in a long-term experiment (60 days), using seven Indo-Pacific reef-building coral species, provided useful information that was interpreted in combination with the observed partial mortality and growth rate of these organisms. These biomarkers were combined in integrated biomarker response (IBR) indices, either in an antioxidant defense mechanisms and oxidative stress response category (approach A: GST, CAT, LPO, and SOD) or in an integrated stress response category – organism performance (approach B: GST, CAT, LPO, SOD, partial mortality, and growth rate). The results of this study indicate that the IBRs were responsive to temperature treatment and dependent on the coral species. The approach B was the most adequate since it better reflected the stress suffered by the tested species, whereas the set of four biochemical biomarkers (approach A) was not enough to explain the organismal response of most of the tested species to thermal stress conditions. © 2020 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/158118
Appears in Collections: 气候变化与战略
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作者单位: MARE – Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Campo Grande, Lisboa, 1749-016, Portugal; UCIBIO, REQUIMTE, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Caparica, 2829-516, Portugal; The School of Geosciences, The University of Edinburgh, The Grant Institute, James Hutton Road, King's Buildings, Edinburgh, EH9 3FE, United Kingdom; Oceanário de Lisboa, Esplanada D. Carlos I, Lisboa, 1990-005, Portugal; Irstea, UR EABX, 50 Avenue de Verdun, Cestas, 33612, France
Recommended Citation:
Dias M.,Madeira C.,Jogee N.,et al. Integrative indices for health assessment in reef corals under thermal stress[J]. Ecological Indicators,2020-01-01,113