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  • 2015-2019  (42)
Publikationsart
Schlagwörter
Verlag/Herausgeber
Erscheinungszeitraum
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  • 1
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    Unbekannt
    CO2-driven decrease in pH disrupts olfactory behaviour and increases individual variation in deep-sea hermit crabs (2016)
    PANGAEA
    In:  Supplement to: Kim, Tae Won; Taylor, Josi; Lovera, Chris; Barry, J P (2015): CO2-driven decrease in pH disrupts olfactory behaviour and increases individual variation in deep-sea hermit crabs. ICES Journal of Marine Science, https://doi.org/10.1093/icesjms/fsv019
    Details
    Publikationsdatum: 2024-03-15
    Beschreibung: Deep-sea species are generally thought to be less tolerant of environmental variation than shallow-living species due to the relatively stable conditions in deep waters for most parameters (e.g. temperature, salinity, oxygen, and pH). To explore the potential for deep-sea hermit crabs (Pagurus tanneri) to acclimate to future ocean acidification, we compared their olfactory and metabolic performance under ambient (pH 7.6) and expected future (pH 7.1) conditions. After exposure to reduced pH waters, metabolic rates of hermit crabs increased transiently and olfactory behaviour was impaired, including antennular flicking and prey detection. Crabs exposed to low pH treatments exhibited higher individual variation for both the speed of antennular flicking and speed of prey detection, than observed in the control pH treatment, suggesting that phenotypic diversity could promote adaptation to future ocean acidification.
    Schlagwort(e): Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Aragonite saturation state, standard deviation; Arthropoda; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Bicarbonate ion, standard deviation; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calcite saturation state, standard deviation; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, standard deviation; Carbonate ion; Carbonate ion, standard deviation; Carbonate system computation flag; Carbon dioxide; Coulometric titration; Date; Deep-sea; EXP; Experiment; Figure; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Identification; Laboratory experiment; Monterey_Bay; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Pagurus tanneri; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Respiration; Respiration rate, oxygen; Salinity; Salinity, standard deviation; Single species; Species; Spectrophotometric; Temperate; Temperature, water; Temperature, water, standard deviation; Time in seconds; Time point, descriptive; Treatment
    Materialart: Dataset
    Format: text/tab-separated-values, 12097 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 2
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    Unbekannt
    Seawater carbonate chemistry and fertilization success of red abalone (2017)
    PANGAEA
    In:  Supplement to: Boch, Charles A; Litvin, Steven Y; Micheli, Fiorenza; De Leo, Giulio; Aalto, Emil A; Lovera, Christopher; Woodson, C Brock; Monismith, Stephen; Barry, J P (2017): Effects of current and future coastal upwelling conditions on the fertilization success of the red abalone (Haliotis rufescens). ICES Journal of Marine Science, https://doi.org/10.1093/icesjms/fsx017
    Details
    Publikationsdatum: 2024-03-15
    Beschreibung: Acidification, deoxygenation, and warming are escalating changes in coastal waters throughout the world ocean, with potentially severe consequences for marine life and ocean-based economies. To examine the influence of these oceanographic changes on a key biological process, we measured the effects of current and expected future conditions in the California Current Large Marine Ecosystem on the fertilization success of the red abalone (Haliotis rufescens). Laboratory experiments were used to assess abalone fertilization success during simultaneous exposure to various levels of seawater pH (gradient from 7.95 to 7.2), dissolved oxygen (DO) (60 and 180 µm/kg SW) and temperature (9, 13, and 18 °C). Fertilization success declined continuously with decreasing pH but dropped precipitously below a threshold near pH 7.55 in cool (9 °C upwelling) to average (13 °C) seawater temperatures. Variation in DO had a negligible effect on fertilization. In contrast, warmer waters (18 °C) often associated with El Nino Southern Oscillation conditions in central California acted antagonistically with decreasing pH, largely reducing the strong negative influence below the pH threshold. Experimental approaches that examine the interactive effects of multiple environmental drivers and also strive to characterize the functional response of organisms along gradients in environmental change are becoming increasingly important in advancing our understanding of the real-world consequences of changing ocean conditions.
    Schlagwort(e): Alkalinity, total; Alkalinity, total, standard deviation; Animalia; Aragonite saturation state; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Comment; Date; Eggs; Eggs, abnormal; Eggs, four-cell stage; Eggs, two-cell stage; Eggs, unfertilized; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Haliotis rufescens; Individuals; Laboratory experiment; Mollusca; Name; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Oxygen; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; Potentiometric; Registration number of species; Reproduction; Salinity; Sample ID; Single species; Species; Temperate; Temperature; Temperature, water; Time in hours; Time in minutes; Time in seconds; Treatment; Type; Uniform resource locator/link to reference
    Materialart: Dataset
    Format: text/tab-separated-values, 9002 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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    DATA PANGAEA
  • 3
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    Unbekannt
    Snail shell growth at control and elevated temperature and ocean acidification conditions (2019)
    PANGAEA
    In:  Supplement to: Lord, Joshua P; Harper, Elizabeth M; Barry, J P (2019): Ocean acidification may alter predator-prey relationships and weaken nonlethal interactions between gastropods and crabs. Marine Ecology Progress Series, 616, 83-94, https://doi.org/10.3354/meps12921
    Details
    Publikationsdatum: 2024-03-15
    Beschreibung: Predator-prey interactions often drive ecological patterns and are governed by factors including predator feeding rates, prey behavioral avoidance, and prey structural defenses. Invasive species can also play a large ecological role by disrupting food webs, driving local extinctions, and influencing evolutionary changes in prey defense mechanisms. This study documents a substantial reduction in the behavioral and morphological responses of multiple gastropod species (Nucella lapillus, N. ostrina, Urosalpinx cinerea) to an invasive predatory crab (green crab Carcinus maenas) under ocean acidification conditions. These results suggest that climate-related changes in ocean chemistry may diminish non-lethal effects of predators on prey responses including behavioral avoidance. While snails with varying shell mineralogies were similarly successful at deterring predation, those with primarily aragonitic shells were more susceptible to dissolution and erosion under high CO2 conditions. The varying susceptibility to predation among species with similar ecological roles could indicate that the impacts of invasive species like green crabs could be modulated by the ability of native and invasive prey to withstand ocean acidification conditions.
    Schlagwort(e): Alkalinity, total; Animalia; Aragonite saturation state; Behaviour; Benthic animals; Benthos; Bicarbonate ion; Bottles or small containers/Aquaria (〈20 L); Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Change; Coast and continental shelf; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Growth/Morphology; Identification; Length; Mass; Mass change; Mollusca; North Atlantic; North Pacific; Nucella lapillus; Nucella ostrina; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Registration number of species; Salinity; Salinity, standard deviation; Shell growth; Single species; Species; Species interaction; Temperate; Temperature; Temperature, water; Temperature, water, standard deviation; Treatment; Type; Uniform resource locator/link to reference; Urosalpinx cinerea
    Materialart: Dataset
    Format: text/tab-separated-values, 6119 data points
    Standort Signatur Einschränkungen Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    DATA PANGAEA
  • 4
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    Unbekannt
    CO2-driven decrease in pH disrupts olfactory behaviour and increases individual variation in deep-sea hermit crabs (2016)
    Oxford University Press
    Details
    Publikationsdatum: 2016-02-27
    Beschreibung: Deep-sea species are generally thought to be less tolerant of environmental variation than shallow-living species due to the relatively stable conditions in deep waters for most parameters (e.g. temperature, salinity, oxygen, and pH). To explore the potential for deep-sea hermit crabs ( Pagurus tanneri ) to acclimate to future ocean acidification, we compared their olfactory and metabolic performance under ambient (pH ~7.6) and expected future (pH ~7.1) conditions. After exposure to reduced pH waters, metabolic rates of hermit crabs increased transiently and olfactory behaviour was impaired, including antennular flicking and prey detection. Crabs exposed to low pH treatments exhibited higher individual variation for both the speed of antennular flicking and speed of prey detection, than observed in the control pH treatment, suggesting that phenotypic diversity could promote adaptation to future ocean acidification.
    Print ISSN: 1054-3139
    Digitale ISSN: 1095-9289
    Thema: Biologie , Geologie und Paläontologie , Physik
    Publiziert von Oxford University Press
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
  • 5
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    High-Throughput Production of Chromium(III) Complexes for Antibody Immobilization (2016)
    American Chemical Society (ACS)
    Details
    Publikationsdatum: 2016-10-08
    Beschreibung: Analytical Chemistry DOI: 10.1021/acs.analchem.6b02531
    Print ISSN: 0003-2700
    Digitale ISSN: 1520-6882
    Thema: Chemie und Pharmazie
    Publiziert von American Chemical Society (ACS)
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
  • 6
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    The Genome of Haemoproteus tartakovskyi and Its Relationship to Human Malaria Parasites (2016)
    Oxford University Press
    Details
    Publikationsdatum: 2016-05-14
    Beschreibung: The phylogenetic relationships among hemosporidian parasites, including the origin of Plasmodium falciparum , the most virulent malaria parasite of humans, have been heavily debated for decades. Studies based on multiple-gene sequences have helped settle many of these controversial phylogenetic issues. However, denser taxon sampling and genome-wide analyses are needed to confidently resolve the evolutionay relationships among hemosporidian parasites. Genome sequences of several Plasmodium parasites are available but only for species infecting primates and rodents. To root the phylogenetic tree of Plasmodium , genomic data from related parasites of birds or reptiles are required. Here, we use a novel approach to isolate parasite DNA from microgametes and describe the first genome of a bird parasite in the sister genus to Plasmodium , Haemoproteus tartakovskyi . Similar to Plasmodium parasites, H. tartakovskyi has a small genome (23.2 Mb, 5,990 genes) and a GC content (25.4%) closer to P. falciparum (19.3%) than to Plasmodium vivax (42.3%). Combined with novel transcriptome sequences of the bird parasite Plasmodium ashfordi , our phylogenomic analyses of 1,302 orthologous genes demonstrate that mammalian-infecting malaria parasites are monophyletic, thus rejecting the repeatedly proposed hypothesis that the ancestor of Laverania parasites originated from a secondary host shift from birds to humans. Genes and genomic features previously found to be shared between P. falciparum and bird malaria parasites, but absent in other mammal malaria parasites, are therefore signatures of maintained ancestral states. We foresee that the genome of H. tartakovskyi will open new directions for comparative evolutionary analyses of malarial adaptive traits.
    Digitale ISSN: 1759-6653
    Thema: Biologie
    Publiziert von Oxford University Press
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
  • 7
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    YAP and TAZ in epithelial stem cells: A sensor for cell polarity, mechanical forces and tissue damage (2016)
    Wiley-Blackwell
    In: BioEssays
    Details
    Publikationsdatum: 2016-05-14
    Beschreibung: The YAP/TAZ family of transcriptional co-activators drives cell proliferation in epithelial tissues and cancers. Yet, how YAP and TAZ are physiologically regulated remains unclear. Here we review recent reports that YAP and TAZ act primarily as sensors of epithelial cell polarity, being inhibited when cells differentiate an apical membrane domain, and being activated when cells contact the extracellular matrix via their basal membrane domain. Apical signalling occurs via the canonical Crumbs/CRB-Hippo/MST-Warts/LATS kinase cascade to phosphorylate and inhibit YAP/TAZ. Basal signalling occurs via Integrins and Src family kinases to phosphorylate and activate YAP/TAZ. Thus, YAP/TAZ is localised to the nucleus in basal stem/progenitor cells and cytoplasm in differentiated squamous cells or columnar cells. In addition, other signals such as mechanical forces, tissue damage and possibly receptor tyrosine kinases (RTKs) can influence MST-LATS or Src family kinase activity to modulate YAP/TAZ activity. YAP and TAZ are sensors of cell polarity, being nuclear in stem cells and cytoplasmic in differentiated epithelial cells due to Hippo pathway signalling. In addition, YAP/TAZ (Yorkie in Drosophila ) can respond to mechanical forces and tissue damage to drive stem cell proliferation responses.
    Print ISSN: 0265-9247
    Digitale ISSN: 1521-1878
    Thema: Biologie , Medizin
    Publiziert von Wiley-Blackwell
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
  • 8
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    Estimation of Spatial Alumina Concentration in an Aluminum Reduction Cell using a Multi-Level State Observer (2017)
    Wiley-Blackwell
    Details
    Publikationsdatum: 2017-01-27
    Beschreibung: In the Hall-Héroult process, spatial variations in alumina concentration are very difficult to measure and impossible to estimate from the conventionally monitored line amperage and cell voltage. This paper presents an approach to estimate in real time the alumina concentration distribution in an aluminum reduction cell based on individual anode current measurements. One of the key difficulties is that the localized mass transfer rates are unknown. To overcome this issue, a multi-level state observer is developed based on the robust extended Kalman filter. The approach utilizes a dynamic model of a reduction cell that is discretized subsequently level by level, where the estimated variables at each level are used to estimate more detailed alumina concentration spatial distribution at the next level. The proposed approach is validated in an experimental study using an industrial cell. This article is protected by copyright. All rights reserved.
    Print ISSN: 0001-1541
    Digitale ISSN: 1547-5905
    Thema: Chemie und Pharmazie , Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
    Publiziert von Wiley-Blackwell im Namen von The American Institute of Chemical Engineers (AIChE).
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
  • 9
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    Perspectives on the Overall Risks of Living With Hypertrophic Cardiomyopathy [On My Mind] (2017)
    American Heart Association (AHA)
    Details
    Publikationsdatum: 2017-06-13
    Schlagwort(e): Prognosis
    Digitale ISSN: 1524-4539
    Thema: Medizin
    Publiziert von American Heart Association (AHA)
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
  • 10
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    Visualizing statistical significance of disease clusters using cartograms (2017)
    BioMed Central
    Details
    Publikationsdatum: 2017-05-16
    Beschreibung: Health officials and epidemiological researchers often use maps of disease rates to identify potential disease clusters. Because these maps exaggerate the prominence of low-density districts and hide potential...
    Digitale ISSN: 1476-072X
    Thema: Medizin
    Publiziert von BioMed Central
    Standort Signatur Einschränkungen Verfügbarkeit
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    PAPER CURRENT
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