19 documents found, page 1 of 2
Shallow water fish display low phenotypic plasticity to ocean warming and extre...
Missionário, Madalena; Almeida, Célia; Fernandes, Joana Filipa; Vinagre, Catarina; Madeira, Carolina; Madeira, DianaShallow water environments have long been recognized by scientists as sentinels for climate change. By analysing the impacts of ocean warming and marine heatwaves (MHW) in species from these areas, we can estimate their plasticity and hence vulnerability to thermal challenges. Pomatoschistus microps is a benthic intertidal fish species inhabiting coastal lagoons where temperature fluctuations are common. Here, ...
Thermal tolerance limits and physiological traits as indicators of Hediste dive...
Fernandes, Joana Filipa; Calado, Ricardo; Jerónimo, Daniel; Madeira, DianaGlobal projections predict significant increases in ocean temperature and changes in ocean chemistry, including salinity variations by 2100. This has led to a substantial interest in the study of thermal ecophysiology, as temperature is a major factor shaping marine ectotherm communities. However, responses to temperature may be influenced by other factors such as salinity, highlighting the relevance of multipl...
Warming in shallow waters: Seasonal response of stress biomarkers in a tide poo...
Vinagre, Catarina; Madeira, Diana; Mendonça, Vanessa; Madeira, Carolina; Diniz, Mário S.Tide pools are rapidly warming environments with low thermal inertia, where organisms are exposed to potentially stressful conditions. This way, tide pools will be among the first and hardest hit environments by climate warming. Studies of thermal stress in situ are rare, but important so that current thermal stress in the wild can be confirmed and serve as reference for the future. This study aims to investiga...
Conserved fatty acid profiles and lipid metabolic pathways in a tropical reef f...
Madeira, Carolina; Madeira, Diana; Ladd, Nemiah; Schubert, Carsten J.; Diniz, Mário S.; Vinagre, Catarina; Leal, Miguel C.Climate warming is causing rapid spatial expansion of ocean warm pools from equatorial latitudes towards the subtropics. Sedentary coral reef inhabitants in affected areas will thus be trapped in high temperature regimes, which may become the "new normal". In this study, we used clownfish Amphiprion ocellaris as model organism to study reef fish mechanisms of thermal adaptation and determine how high temperatur...
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...
Different sensitivity to heatwaves across the life cycle of fish reflects pheno...
Madeira, Diana; Madeira, Carolina; Costa, Pedro M.; Vinagre, Catarina; Portner, Hans-Otto; Diniz, Mario 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 degrees C), estuarine (24 degrees C) summer temperatures, and heat...
Negative synergistic impacts of ocean warming and acidification on the survival...
Araújo, José E.; Madeira, Diana; Vitorino, Rui; Repolho, Tiago; Rosa, Rui; Diniz, M.Global change is impacting aquatic ecosystems, with high risks for food production. However, the molecular underpinnings of organismal tolerance to both ocean warming and acidification are largely unknown. Here we tested the effect of warming and acidification in a 42-day experiment on a commercial temperate fish, the gilt-head seabream Sparus aurata. Juvenile fish were exposed to control (C 18 °C pH 8), ocean ...
Molecular Plasticity under Ocean Warming: Proteomics and Fitness Data Provides ...
Madeira, Diana; Araújo, José E.; Vitorino, Rui; Costa, Pedro M.; Capelo, José L.; Vinagre, Catarina; Diniz, Mário S.Ocean warming is known to alter the performance and fitness of marine organisms albeit the proteome underpinnings of species thermal tolerance are still largely unknown. In this 1-month experiment we assessed the vulnerability of the gilt-head sea bream Sparus aurata, taken here as a biological model for some key fisheries species, to ocean warming (control 18°C, nursery ground temperature 24°C and heat wave 30...
Effect of Anilocra frontalis parasitization on the thermal tolerance, acclimati...
Cereja, Rui; Mendonça, Vanessa; Dias, Marta; Madeira, Diana; Vinagre, CatarinaThe common goby, Pomatoschistus microps (Krøyer 1838) (Gobiidae, Teleostei) is an important estuarine and coastal fish species widespread throughout the European coasts and the Mediterranean (Dolbeth, Martinho, Leitão, Cabral, & Pardal, 2007). However, only recently has this species thermal tolerance and acclimation capacity been reported (Vinagre et al., 2016), and presenting no acclimation capacity to warming...
Comparing biomarker responses during thermal acclimation: A lethal vs non-letha...
Madeira, Carolina; Madeira, Diana; Diniz, Mário S.; Cabral, Henrique; Vinagre, CatarinaKnowledge of thermal stress biology for most tropical fish species in reef ecosystems under climate change is still quite limited. Thus, the objective of this study was to measure the time-course changes of thermal stress biomarkers in the commercially exploited coral reef fish Amphiprion ocellaris, during a laboratory simulated event of increased temperature. Heat shock protein 70kDa (Hsp70) and total ubiquiti...