3 documents found, page 1 of 1
Impacts of hypoxic events surpass those of future ocean warming and acidification
Sampaio, Eduardo; Santos, Catarina; Rosa, Inês C.; Ferreira, Verónica; Pörtner, Hans-Otto; Duarte, Carlos M.; Levin, Lisa A.; Rosa, RuiOver the past decades, three major challenges to marine life have emerged as a consequence of anthropogenic emissions: ocean warming, acidification and oxygen loss. While most experimental research has targeted the first two stressors, the last remains comparatively neglected. Here, we implemented sequential hierarchical mixed-model meta-analyses (721 control–treatment comparisons) to compare the impacts of oxy...
Different sensitivity to heatwaves across the life cycle of fish reflects pheno...
Madeira, Diana; Madeira, Carolina; Costa, Pedro M.; Vinagre, Catarina; Pörtner, Hans-Otto; Diniz, Mário S.Predicting responses of marine organisms to global change requires eco-physiological assessments across the complex life cycles of species. Here, we experimentally tested the vulnerability of a demersal temperate fish (Sparus aurata) to long-lasting heatwaves, on larval, juvenile and adult life-stages. Fish were exposed to simulated coastal (18 °C), estuarine (24 °C) summer temperatures, and heatwave conditions...
STC1 and PTHrP modify carbohydrate and lipid metabolism in liver of a teleost fish
Palma, Pedro F. S.; Bock, Christian; Silva, Tomé S.; Guerreiro, Pedro; Power, Deborah; Pörtner, Hans-Otto; Canario, AdelinoStanniocalcin 1 (STC1) and parathyroid hormone-related protein (PTHrP) are calciotropic hormones in vertebrates. Here, a recently hypothesized metabolic role for these hormones is tested on European sea bass treated with: (i) teleost PTHrP(1-34), (ii) PTHrP(1-34) and anti-STC1 serum (pro-PTHrP groups), (iii) a PTHrP antagonist PTHrP(7-34) or (iv) PTHrP(7-34) and STC1 (pro-STC1 groups). Livers were analysed usin...