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154 results for “Dissolved oxygen”
PIE LTER Year 2018, 15 minute measurements of dissolved oxygen, water temperature at the Ipswich River head of tide, Sylvania Dam in Ipswich, MA.
Year 2018, continuous measurements, every 15 minutes, were made of dissolved oxygen, water temperature in the Ipswich River behind the head of tide dam in Ipswich, MA.
PIE LTER 15-minute surface water dissolved oxygen, temperature, and salinity of six high marsh ponds, Rowley, MA, during the summer of 2016.
We estimated the oxygen metabolism of six ponds in three regions of the PIE-LTER marshes during summer 2016. The goal was to assess whether pond metaoblism rates varied predictably with pond dimensions (e.g., surface area, volume) or geographic attributes (e.g., elevation, distance from upland, marsh region). Sensors recording dissolved oxygen (DO), temperature, and salinity were deployed at mid-depth and rotated between the six ponds through the June - August study period. Metaoblism rates were calcluated based on a free-water diel oxygen approach.
PIE LTER year 2018, 15 minute measurements of dissolved oxygen, water temperature in a small headwater stream draining draining a highly suburban catchment (72% residential), Saw Mill Brook, Burlington, MA.
Year 2018, continuous measurements every 15 minutes were made of dissolved oxygen, water temperature in Saw Mill Brook, Burlington, MA, a small headwater stream draining a highly suburban catchment (72% residential).
SBC LTER: Ocean: Time-series: Mid-water SeaFET pH and CO2 system chemistry with surface and bottom Dissolved Oxygen at Arroyo Quemado Reef(ARQ), 2012-2017
Calibrated pH (Total scale, SeaFET sensor) an disoolved oxygen (miniDOT)data were collected from Arroyo Quemado Reef in the Santa Barbara Channel (site ID: ARQ). pH data are accompanied by in situ temperature and associated carbonate chemistry parameters. The SeaFET instrument is located about 4 meters from the surface, with other moored instruments. Associated carbonate chemistry parameters were calculated with the CO2calc programs from USGS, and include: partial pressure and fugosity of CO2, concentrations of bicarbonate, carbonate and hyrdroxide ion, Omega (saturation state) of calcite and aragonite. Dissolved oxygen sensors (miniDOT, PME) were added in 2014, and are mounted near the ocean surface and near the seafloor, and also report temperature. All data have been interpolated to a 20 minute time interval for compatibility with other SBC LTER moored instrument data. Data coverage is 2012-07-30 to 2017-03-10.All data from this site have been concatenated with the pH data from the other sites and merged into one data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sbc&identifier=6005
SBC LTER: Ocean: Time-series: Mid-water SeaFET pH and CO2 system chemistry with surface and bottom Dissolved Oxygen at Mohawk Reef(MKO), 2012 - 2017
Calibrated pH (Total scale, SeaFET sensor) an disoolved oxygen (miniDOT)data were collected from Mohawk Reef in the Santa Barbara Channel (site ID: MKO). pH data are accompanied by in situ temperature and associated carbonate chemistry parameters. The SeaFET instrument is located about 4 meters from the surface, with other moored instruments. Associated carbonate chemistry parameters were calculated with the CO2calc programs from USGS, and include: partial pressure and fugosity of CO2, concentrations of bicarbonate, carbonate and hyrdroxide ion, Omega (saturation state) of calcite and aragonite. Dissolved oxygen sensors (miniDOT, PME) were added in 2014, and are mounted near the ocean surface and near the seafloor, and also report temperature. All data have been interpolated to a 20 minute time interval for compatibility with other SBC LTER moored instrument data. Data coverage is 2012-01-11 to 2017-12-19.The update of this dataset was terminated in 2019. All data from this site have been concatenated with the pH data from the other sites and merged into one data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sbc&identifier=6005
SBC LTER: Ocean: Time-series: Mid-water SeaFET pH and CO2 system chemistry with surface and bottom Dissolved Oxygen at Santa Barbara Harbor/Stearns Wharf(SBH), 2012-2017
Calibrated pH (Total scale, SeaFET sensor) an disoolved oxygen (miniDOT)data were collected from Santa Barbara Harbor/Stearns Wharf in the Santa Barbara Channel (site ID: SBH). pH data are accompanied by in situ temperature and associated carbonate chemistry parameters. The SeaFET instrument is located about 4 meters from the surface, with other moored instruments. Associated carbonate chemistry parameters were calculated with the CO2calc programs from USGS, and include: partial pressure and fugosity of CO2, concentrations of bicarbonate, carbonate and hyrdroxide ion, Omega (saturation state) of calcite and aragonite. Dissolved oxygen sensors (miniDOT, PME) were added in 2014, and are mounted near the ocean surface and near the seafloor, and also report temperature. All data have been interpolated to a 20 minute time interval for compatibility with other SBC LTER moored instrument data. Data coverage is 2012-09-15 to 2016-09-14. The update of this dataset was terminated in 2019. All data from this site have been concatenated with the pH data from the other sites and merged into one data package: https://portal.edirepository.org/nis/mapbrowse?scope=knb-lter-sbc&identifier=6005
Hull Springs Wetland Dissolved Oxygen and Water Temperature Data from 2021-05-04 to 2021-06-11
<p># General Metadata for Hull Springs Restored Wetland Sampling Station</p> <p>## Files</p> <p>Specific metadata for each deployment can be found as text files with the file format of:</p> <p> HS_wetland_DO-MM-DD_metadata.txt<br> <br> Where YYYY-MM-DD is the date that the sampling period ended.</p> <p>NOTE: The metadata in the above file is collected from the data logger and does not have all of fields present in the final data set, because some were created during data cleaning.</p> <p>## File Created</p> <p> * 2021-06-16 by KF<br> <br> ## File Modified</p> <p>## Description</p> <p>These data are from the sampling station in the restored wetland at Hull Springs. The sensors are in the NE corner of the shallow pond portion of the restored wetland (38.119289, -76.667252).</p> <p>All data are CC-BY and should be cited using the DOI available at https://zenodo.org/communities/leo/</p> <p>## Station Specifics</p> <p> The specific at each site are:</p> <p> * Temperature (dC) collected with a Onset HOBO U26-001 Dissolved Oxygen Logger<br> * Dissolved Oxygen (mg/L) collected with a Onset HOBO U26-001 Dissolved Oxygen Logger</p> <p>The sensors are sampled every 15 minutes<br> <br> ## Measurement Parameters, units, and Variable Names</p> <p> * date.time - THIS FIELD DOES NOT REPORT THE CORRECT TIME. THE AM and PM WERE NOT PRESERVED. USE 'timestamp'.<br> * observation - the incremental number of each observation<br> * timestamp - the data and time that the record was collected, as reported by the data logger (MM/DD/YY HH:MM:SS A/PM)<br> * DO - the concentration of dissolved oxygen in the water (mg/L)<br> * Temp - the temperature of the water (dC)<br> </p>
Optimally interpolated dissolved oxygen based on the World Ocean Database 2018 and CMIP6 models
<p>Optimal interpolation of observed and modeled dissolved oxygen data from WOD18 and CMIP6. Technical details are provided in the publication (Ito et al., 2023). </p><p>Ito, T., Garcia, H. E., Wang, Z., Minobe, S., Long, M. C., Cebrian, J., Reagan, J., Boyer, T., Paver, C., Bouchard, C., Takano, Y., Bushinsky, S., Cervania, A., and Deutsch, C. A.: Underestimation of global O2 loss in optimally interpolated historical ocean observations, Biogeosciences Discuss. [preprint], https://doi.org/10.5194/bg-2023-72, in review, 2023.</p>
Large projected decline in dissolved oxygen in a eutrophic estuary due to climate change
<p>This data includes the model codes and input files for the paper "Large projected decline in dissolved oxygen in a eutrophic estuary due to climate change" submitted to Journal of Geophysical Research-Oceans.</p> <p>It includes the input files and source code for ROMS and RCA model to produce simulations of Chesapeake Bay hypoxia during 1989-1998 and 2047-2098.</p> <p>ROMS (Regional Ocean Modeling System) model used in this study is version 3.4.</p> <p>RCA (Row-Column AESOP) water quality model used in this study is coupled with ROMS output, by UMCES group.</p> <p>For more details, please see the future publication.</p>
Fig. 1 in Artificially decreased dissolved oxygen increases the persistence of Trichomonas gallinae in water
Fig. 1. Dissolved oxygen (DO) saturation over time after the addition of different amounts of organic material (OM) to 500 mL distilled water in plastic containers. Error bars = standard deviation from 3 replicates. Legend title: OM (in grams).
Intra-egg oxygen dissolved in Octopus maya embryos
<p>Those data show, for the first time, oxygen concentration levels in the perivitelline liquid of Octopus maya embryos. Data are shown as a percentage of oxygen saturation, measured at 24°C, using a Needle-type oxygen microsensor (Loligo Systems, Denmark). The sensor was placed in an automated micromanipulator (PreSense, Germany), and the eggs were placed in a supporting device at 38° of inclination. In such form, the sensor was inserted in the perivitelline liquid, registering the oxygen dissolved inside the eggs. The final oxygen level was recorded between one and three min after the sensor insertion. Data of oxygen dissolved during embryo development were grouped as blastulation, organogenesis, activation, and growth phases. A negative power curve was constructed for the relationship between oxygen dissolved in the perivitelline liquid and embryo development</p>
Hull Springs Wetland Dissolved Oxygen and Water Temperature Data from 2021-05-04 to 2021-06-11
<pre># General Metadata for Hull Springs Restored Wetland Sampling Station ## Files Specific metadata for each deployment and sensor can be found as text files with the file format of: HS_wetland_DO_YYYY-MM-DD_metadata.txt HS_wetland_pressure_trans_YYYY-MM-DD_metadata.txt HS_wetland_CT_YYYY-MM-DD_metadata.txt Where YYYY-MM-DD is the date that the sampling period ended. NOTE: The metadata in the above file is collected from the data logger and does not have all of fields present in the final data set, because some were created during data cleaning. Details on how the data were cleaned and variables created can be found at in the cleaning scripts on Gitlab [https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts](https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts). ## File Created * 2021-06-16 by KF ## File Modified * 2021-07-22 by KF - added general metadata for the pressure transducer and the CT sensor. ## Description These data are from the sampling station in the restored wetland at Hull Springs. The sensors are in the NE corner of the shallow pond portion of the restored wetland (38.119289, -76.667252). All data are CC-BY and should be cited using the DOI available at https://zenodo.org/communities/leo/ ## Station Specifics The specific at each site are: * Temperature (dC) and Dissolved Oxygen (mg/l) are collected with a Onset HOBO U26-001 Dissolved Oxygen Logger * Temperature (dC) and Pressure (mmHg) are collected with an Onset HOBO U20-001-01 Water Level Logger * Temperature (dC) and Conductivity are collected with an Onset HOBO U24-001 Conductivity Logger The sensors are sampled every 15 minutes ## Measurement Parameters, units, and Variable Names * date.time - the date and time that the record was collected, reported in POSIX standard time (YYYY-MM-DD HH:MM:SS) * date.time.adj - the date and time of the pressure measurement that was adjusted to match the barometric pressure measurement from the weather station. * observation - the incremental number of each observation * timestamp - the data and time that the record was collected, as reported by the data logger (MM/DD/YY HH:MM:SS A/PM) * DO - the concentration of dissolved oxygen in the water (mg/L) * Temp - the temperature of the water (dC) * Pressure - the pressure recorded by the underwater pressure transducer (mmHg) * Low_Range_CT - the conductivity read from 0 - 2500 uS/cm (uS/cm) * Full_Range_CT - the conductivity read from 0 - 15000 uS/cm (mmHg) </pre>
Hull Springs Wetland Dissolved Oxygen and Water Temperature Data from 2021-06-11 to 2021-07-16
<pre># General Metadata for Hull Springs Restored Wetland Sampling Station ## Files Specific metadata for each deployment and sensor can be found as text files with the file format of: HS_wetland_DO_YYYY-MM-DD_metadata.txt HS_wetland_pressure_trans_YYYY-MM-DD_metadata.txt HS_wetland_CT_YYYY-MM-DD_metadata.txt Where YYYY-MM-DD is the date that the sampling period ended. NOTE: The metadata in the above file is collected from the data logger and does not have all of fields present in the final data set, because some were created during data cleaning. Details on how the data were cleaned and variables created can be found at in the cleaning scripts on Gitlab [https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts](https://gitlab.com/leo147/leo/-/tree/master/lab_notebook/data_processing/cleaning_scripts). ## File Created * 2021-06-16 by KF ## File Modified * 2021-07-22 by KF - added general metadata for the pressure transducer and the CT sensor. ## Description These data are from the sampling station in the restored wetland at Hull Springs. The sensors are in the NE corner of the shallow pond portion of the restored wetland (38.119289, -76.667252). All data are CC-BY and should be cited using the DOI available at https://zenodo.org/communities/leo/ ## Station Specifics The specific at each site are: * Temperature (dC) and Dissolved Oxygen (mg/l) are collected with a Onset HOBO U26-001 Dissolved Oxygen Logger * Temperature (dC) and Pressure (mmHg) are collected with an Onset HOBO U20-001-01 Water Level Logger * Temperature (dC) and Conductivity are collected with an Onset HOBO U24-001 Conductivity Logger The sensors are sampled every 15 minutes ## Measurement Parameters, units, and Variable Names * date.time - the date and time that the record was collected, reported in POSIX standard time (YYYY-MM-DD HH:MM:SS) * date.time.adj - the date and time of the pressure measurement that was adjusted to match the barometric pressure measurement from the weather station. * observation - the incremental number of each observation * timestamp - the data and time that the record was collected, as reported by the data logger (MM/DD/YY HH:MM:SS A/PM) * DO - the concentration of dissolved oxygen in the water (mg/L) * Temp - the temperature of the water (dC) * Pressure - the pressure recorded by the underwater pressure transducer (mmHg) * Low_Range_CT - the conductivity read from 0 - 2500 uS/cm (uS/cm) * Full_Range_CT - the conductivity read from 0 - 15000 uS/cm (mmHg) </pre>
Fig. 3 in Ion fluxes in silver catfish (Rhamdia quelen) juveniles exposed to different dissolved oxygen levels
Fig. 3. Na+ (A) and Cl- (B) net fluxes of silver catfish juveniles acclimated to 2.5 (2.5 – 6.0) or 6.0 (6.0 – 6.0) mg.L-1 dissolved oxygen levels for three weeks and transferred to aquaria with 6.0 mg.L-1 dissolved oxygen levels. Data expressed as mean ± SEM. Positive values indicate net influxes, and negative values net effluxes. Mean value of Cl- flux at 24 h in juveniles transferred to 6.0 mg.L-1 is too small to be seen in the figure. * significantly different from juveniles transferred to 6.0 mg.L-1 at the same time after transference by one-way ANOVA and Tukey test (P <0.05).
Gill morphology data and geometric morphometric data of Enteromius spp. in relation to dissolved oxygen gradients
<ol> <li class="western">We explored how range expansion of freshwater fishes coincident with climate warming is affected by, and then in turn affects, responses to a second environmental gradient – dissolved oxygen.</li> <li> <p class="western">Traits related to hypoxia tolerance, specifically various metrics of gill size and geometric morphometric proxies of gill size were quantified for a range-expanding cyprinid fish (<em>Enteromius apleurogramma</em>) in both its historical and novel ranges in the Mpanga River drainage of Uganda, East Africa.</p> </li> <li> <p class="western">We found that <em>E. apleurogramma </em><span>followed patterns previously established in the </span><span>congener</span><span> </span><em>E. neumayeri.</em><span> </span><span>G</span><span>ill filament length and some other metrics were strongly divergent in long-established populations of both </span><em>E. apleurogramma </em><span>and </span><em>E. neumayeri</em><span>, with l</span><span>arger gills</span><span> in hypoxic populations compared to normoxic ones. Range-expanding populations were intermediate to the two </span><span>long-established populations</span><span>, but divergent between themselves. </span><span>Other gill traits such as filament number we</span><span>re weakly or not divergent. </span></p> </li> <li> <p class="western"><span>Furthermore, we show that grosser morphological traits such as opercular area can be successfully used as a proxy for gill size, both by direct measurement as well as </span><span>using geometric morphometric techniques. </span></p> </li> <li> <p class="western">Finally, we show that both parapatric conspecific populations and sympatric heterospecific populations can be used as reference points to approximate the "target" of adaptation to hypoxic conditions.</p> </li> </ol>
Data from: Comparing winter versus summer deepwater dissolved oxygen depletion with the potential for cross-seasonal forecasting of deepwater oxygen availability
<p>Depletion of deepwater dissolved oxygen (DO) in lakes has become increasingly prevalent and severe due to many external stressors, potentially threatening human-derived ecosystem services ranging from drinking water quality to fisheries. Using year-round, high-frequency DO data from 12 dimictic lakes, we compared three measures of deepwater DO depletion during winter and summer: DO depletion rate, DO minimum, and hypoxia duration. Hypoxia (DO < 3 mg L<sup>-1</sup>) occurred in over half of the lakes and persisted an average of 83% longer in summer than in winter. While we found no difference in DO depletion rates between winter versus summer, these rates were strongly related to lake morphology in winter but water transparency and temperature in summer. Winter hypoxia duration was negatively related to summer hypoxia duration, suggesting potential utility for forecasting DO depletion in the subsequent summer. Spring mixing efficacy was strongly related to winter minimum DO saturation and hypoxia duration, and was also a strong predictor of summer minimum DO saturation and hypoxia duration. Hence, these cross-seasonal patterns suggest deepwater DO metrics can be used to forecast DO availability in subsequent seasons, modified by the relative importance of morphology, water transparency, and temperature. These findings can allow for improved, early management when DO is predicted to be critically low based on previous seasons’ DO measurements, which can work to minimize the negative consequences for water quality and fisheries health associated with severe DO depletion.</p>
Dataset for the paper submitted for peer-review with the title "Quantifying heterotrophic bacteria parameters and dissolved organic carbon biodegradability through oxygen data assimilation in a river water quality model"
<p>The proposed dataset is related to the following article submitted for peer review:</p> <p>Hasanyar, M., Flipo, N., Romary, T., Wang, S. (2023), Quantifying heterotrophic bacteria parameters and dissolved organic carbon biodegradability through oxygen data assimilation in a river water quality model, UNDER PEER-REVIEW</p> <p>It consists of command files for the prose-pa0.74 software available here: https://gitlab.com/prose-pa/prose-pa </p> <p>To run the model :</p> <p>1. Compile prose-pa0.74</p> <p>2. Copy the executable in the current directory</p> <p>3. In a terminal launch</p> <p>> ./prose-pa0.74 simulation.COMM test.log</p> <p>The “simulation.COMM” holds the settings for the ProSe-PA simulation related to the paper mentioned in the front head of the current file. </p> <p>The information on different parameters of “simulation.COMM” are included in “bathymetrie”, “Cmds”, “Inflows”, “layers”, “meteo”, “o2_obs”, “param_bio”, “Reaches” and “Singularities” folders.</p> <p>The “bathymetrie” folder holds the geometric information of several cross-sections along the river. </p> <p>The Cmds folder holds the “simulation.COMM” file. </p> <p>The “Inflows” folder the information about the boundary condition inflows to the river such as discharge, concentration of organic carbon, etc.</p> <p>The layer folder holds data of the initial conditions of the model (Table 2 in the article).</p> <p>The “meteo” folder holds the meteorological information.</p> <p>The “o2_obs” folder holds the observed oxygen data needed to do data assimilation. </p> <p>The “param_bio” folder holds information on the physiology of bacteria, phytoplankton, and other model species.</p> <p>The “Reaches” folder holds information about river reaches and their manning coefficient. </p> <p>The “param_range” file holds the variation range of model parameters considered in data assimilation together with their perturbation percentage.</p> <p>The output files are written in $HOME/Outputs folder. It is possible to change it directly in simulation.COMM, last entry “Output_folder”.</p>
Gill morphology data and geometric morphometric data of Enteromius spp. in relation to dissolved oxygen gradients
Open the record for dataset details and reuse information.
Dissolved oxygen decay rate and ambient condition data, Waccamaw River Watershed, SC, Summer 2020
Ambient conditions of various dissolved and particulate biogeochemical parameters were measured within replicate station types (Waccamaw River proper, stormwater detention ponds, and forested wetlands) within the watershed of the Waccamaw River, SC in the summer of 2020. Additionally, 5-day dark bottle incubations of dissolved oxygen allowed the calculation of decay rates using an exponential curve fit. Q10 temperature coefficients were calculated using...
Ambient nutrients, carbon, and DOM absorbance metrics along with experimental dissolved oxygen decay rates for 5-day incubations of water within the Waccamaw River Watershed, SC, Summer 2020.
Dissolved oxygen (DO) impairment within coastal waters is widespread. Rising temperatures may exacerbate low DO levels by enhancing organic matter (OM) degradation. Here, the temperature sensitivity of OM degradation was investigated as DO decay rates determined during standard five-day biochemical oxygen demand (BOD) measurements conducted under different incubation temperatures. Sampling was conducted in the Waccamaw River watershed, South Carolina, a blackwater river with extensive forested wetland that also receives drainage from stormwater detention ponds associated with coastal development, thus providing contrasting sources of OM composition. Temperature sensitivities were measured as Q10 temperature coefficients, which define how DO decay rates change with 10 degrees of warming. The average Q10 value for the wetland sites (2.14 ± 0.41) was significantly greater (p = 0.004) than those measured in either the river (1.49 ± 0.36) or stormwater ponds (1.41 ± 0.21). Furthermore, using Intergovernmental Panel on Climate Change intermediate-to-very high temperature estimates for 2100 of +2.7 – 4.4 °C, average predicted increases in DO decay rates for wetlands (~22-39 %) are more than double the River (~11-18 %) and stormwater pond rates (~9-16 %). Our findings for inland, coastal waters agree with previous results for soils, suggesting that temperature sensitivities are variable across sites and increase with more complex, lower quality OM. Future modeling scenarios of DO utilization must therefore consider the influence of OM heterogeneity and the temperature sensitivity response of OM degradation across sources and region to better predict how climate change may impact oxygen impairment in aquatic ecosystems.
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