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  • Data  (13)
  • 2020-2024  (13)
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  • 1
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    Unknown
    Continuous water temperature, salinity, oxygen and pH data in front of GEOMAR Pier, Kiel, Germany (2014-2019) (2021)
    PANGAEA
    Details
    Publication Date: 2023-03-17
    Description: 2014-2019: Since September 2014, temperature, salinity, pH (only 2014-2015) and oxygen data were additionally logged in 10-minutes intervals at the GEOMAR pier (54°19'48.8N 10°08'59.6E) (AANDERAA oxygen sensor 3835 & SEABIRD SBE 37-SI MicroCAT CT(D)). The sensor system is mounted to a floating platform so that a continuous depth of 1 m is guaranteed at every time point. Oxygen data were corrected for salinity, temperature and depth following the manual for Aanderaa Optodes using the salinity and temperature measurements from the SEABIRD SBE 37-SI MicroCAT CT(D) sensor. pH was also corrected for salinity, temperature and depth following Martz et al. (2010). After cleaning and other re-boots of the sensor package, temperature, salinity and oxygen data tend to deviate from true values. Hence, 60 minutes of data after any re-boot (after sensor servicing with re-deployment, data download or power failure) were deleted. Furthermore, salinity data lower than 8 and pH data lower than 5 and larger than 10 were removed from the data set as these values were identified as outliers. On May 22nd 2018 as well as on May 26th (22:00) til 27th (15:00) 2019 oxygen data were identified as outliers and removed from the data set. The logged oxygen data were plotted against titration data (doi:10.1594/PANGAEA.930974) to check for drifts in the optode's data. But no drift pattern could be detected and the fit of the regression was very good R2adj. = 0.673, p 〈 0.001)
    Keywords: Corrected; CTD, Sea-Bird, SBE 37-SI MicroCAT; DATE/TIME; DEPTH, water; Kiel-Fjord_GEOMAR-Pier; Monitoring station; MONS; Number; Oxygen; Oxygen, dissolved; Oxygen optode, Aanderaa type 3835; Oxygen saturation; pH; Salinity; Temperature, water
    Type: Dataset
    Format: text/tab-separated-values, 1621988 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Water temperature, salinity and oxygen data from 2005-2019 in front of GEOMAR Pier, Kiel, Germany (2021)
    PANGAEA
    Details
    Publication Date: 2023-03-08
    Description: 2005-2019 CTD (48M, Sea & Sun Technology GmbH, Trappenkamp, Germany) measurements and water samples at the surface (0 m depth), at 7 m and 18 m depth were taken biweekly between 2005 and 2019 at the “Wittlingskuhle” a bit off the GEOMAR pier in the Inner Kiel Fjord (N 54°19.69, E 10°09.06). The oxygen concentration of these water samples was measured by the Winkler- iodometric titration method (Winkler 1888) in mg/L and are converted to oxygen-saturation values by correcting for temperature, salinity and pressure.
    Keywords: CTD, Sea & Sun Technology, Germany, 48M; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Event label; Kiel Fjord; Oxygen; Oxygen, dissolved; Oxygen saturation; PF2005; PF2005_Kiel-fjord; PF2006; PF2006_Kiel-fjord; PF2007; PF2007_Kiel-fjord; PF2008; PF2008_Kiel-Fjord; PF2009; PF2009_Kiel-fjord; PF2010; PF2010_Kiel-fjord; PF2011; PF2011_Kiel-fjord; PF2012; PF2012_Kiel-fjord; PF2013; PF2013_Kiel-fjord; PF2014; PF2014_Kiel-fjord; PF2015; PF2015_Kiel-fjord-2; PF2016; PF2016_Kiel-fjord; PF2017; PF2017_Kiel-fjord; PF2018; PF2018_Kiel-fjord; PF2019; PF2019_Kiel-fjord; Polarfuchs; Salinity; Temperature, water; Titration, Winkler
    Type: Dataset
    Format: text/tab-separated-values, 16044 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Experiment on Hemigrapsus takanoi from Kiel Fjord under different salinity levels (2020)
    PANGAEA
    Details
    Publication Date: 2023-01-13
    Keywords: feeding rates; Hemigrapsus takanoi; Kiel Fjord; larval development; Salinity
    Type: Dataset
    Format: application/zip, 3 datasets
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 4
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    Experiment on survival and developmental time of the crab Hemigrapsus takanoi larvae from Kiel Fjord in 8 salinity levels (2020)
    PANGAEA
    Details
    Publication Date: 2023-01-24
    Description: Ovigerous females were collected by scraping from inner Kiel Fjord in July -August 2017 and kept under control constant temperature room (~20°C) until egg hatching. Newly hatched larvae were reared under different salinity treatments in order to estimate their salinity tolerance,. Experiments were conducted until larvae reached the megalopae stage (last larval stage) or died, The results of such study could give us a primary outlook on the dispersal ability of H. takanoi larvae along the Baltic Sea, and insights about the life cycle of H. takanoi specifically in the south-western Baltic.
    Keywords: Carapace width; feeding rates; Hemigrapsus takanoi; Kiel Fjord; larval development; Replicate; Salinity; Species; Survival; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 113502 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Experiment on survival and feeding rates of juveniles and adults crab Hemigrapsus takanoi from Kiel fjord under different salinity levels for a period of 17 days (2020)
    PANGAEA
    Details
    Publication Date: 2023-01-28
    Description: Crabs were collected from inner Kiel Fjord by scraping in November 2018, in order to study their tolerance to salinity and consequently their ability to establish a population along the Baltic Sea, in addition, their feeding rates were estimated under laboratory condition. Experiments were conducted in constant climate temperature room (~12 °C) at GEOMAR during December 2018.
    Keywords: Carapace width; DATE/TIME; Mytilus edulis, wet mass; Number of mussels consumed; Sex; Species; Stage; Survival; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 2969 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 6
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    Kiel fjord salinity at different depths during POLARFUCHS cruises from 2005 to 2018 (2020)
    PANGAEA
    Details
    Publication Date: 2023-03-03
    Description: Salinity in Kiel Fjord was recorded on mostly-weekly cruises of the research vessel FK Polarfuchs from 2005 to 2018 using a CTD48M probe (Sea and Sun technologies, Trappenkamp, Germany) at a station in front of the GEOMAR Pier (“Wittlingskuhle”, Position: 54°19'69 N, 10°09'06 E). These measurements are important for better understanding the salinity as one of the important abiotic factor determine the reproduction, establishment and has an effect on many species in the Baltic Sea in general and the fjord specifically.
    Keywords: CTD, Sea & Sun Technology, Germany, 48M; CTD/Rosette; CTD-RO; DATE/TIME; DEPTH, water; Event label; feeding rates; Hemigrapsus takanoi; Kiel Fjord; larval development; Latitude of event; Longitude of event; PF2005; PF2005_Kiel-fjord; PF2006; PF2006_Kiel-fjord; PF2007; PF2007_Kiel-fjord; PF2008; PF2008_Kiel-Fjord; PF2009; PF2009_Kiel-fjord; PF2010; PF2010_Kiel-fjord; PF2011; PF2011_Kiel-fjord; PF2012; PF2012_Kiel-fjord; PF2013; PF2013_Kiel-fjord; PF2014; PF2014_Kiel-fjord; PF2015; PF2015_Kiel-fjord-2; PF2016; PF2016_Kiel-fjord; PF2017; PF2017_Kiel-fjord; PF2018; PF2018_Kiel-fjord; Polarfuchs; Salinity; Station label
    Type: Dataset
    Format: text/tab-separated-values, 1354 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 7
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    Presence/absence of jellyfish species Blackfordia virginica in the Kiel Canal 2018-2022 (2023)
    PANGAEA
    Details
    Publication Date: 2023-08-08
    Description: We present presence/absence data for the invasive gelatinous plankton Blackfordia virginica in the Kiel Kanal for the years 2018 to 2022 . The sampling a site is Weiche Groß Nordsee at 54.342N, 9.961E. The sampling was perfomered within framework of the Kiel Fjord Ichthyoplantkton timeseries. Sampling through the entire watercolumn (down to 9 meters depth) was done from FB Polarfuchs using a Bongo net with 500 and 335 micron mesh towed at approx. 3kn speed. The catch of the 500 micron Bongo net was examined directly for the presence of Blackfordia virginica after the haul before being fixed in 4% bufferede formaledehyde solution. During later lab analysis the sample was again examind for the presence of the species. In addition we present accompanying salitnity and temperature measurements at 1 m depth.
    Keywords: Comment; DATE/TIME; DEPTH, water; invasive species; Kiel-Canal; Monitoring station; MONS; Presence/absence; Salinity; Temperature, water; UFOTriNet
    Type: Dataset
    Format: text/tab-separated-values, 283 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 8
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    Unknown
    KOSMOS Bergen 2015 mesocosm study: C. harengus biomass (2022)
    PANGAEA
    Details
    Publication Date: 2023-11-02
    Description: To evaluate the influence of ocean acidification on predatory plankton, e.g. Hydrozoa and fish larvae as well as their interaction in complex natural communities, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To investigate the interaction between Hydrozoa and fish larvae influenced by OA ee studied OA-induced changes at the top of the food web by following ≈2000 larvae of Atlantic herring (Clupea harengus) hatched inside each mesocosm during the first week of the experiment, and a Hydrozoa population that had already established inside the mesocosms. Organisms of both taxa inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls, subsequent microscopic analyses as well as carbon to nitrogen measurements. Under OA, we detected 20% higher abundance of hydromedusae staged jellyfish, but 25% lower biomass. At the same time, survival rates of Atlantic herring larvae were higher under OA (control pCO2: 0.1%, high pCO2: 1.7%) in the final phase of the study.
    Keywords: Abundance per volume; Climate change; Cluster of Excellence: The Future Ocean; Dry mass; Dry mass per individual; Event label; Fish; fish larvae; Food web; FutureOcean; Hydrozoa; Identification; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; MESO; mesocosm; Mesocosm experiment; Mesocosm label; Ocean acidification; plankton; Treatment; Volume
    Type: Dataset
    Format: text/tab-separated-values, 304 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 9
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    Unknown
    KOSMOS Bergen 2015 mesocosm study: C. harengus survival (2022)
    PANGAEA
    Details
    Publication Date: 2023-11-02
    Description: To evaluate the influence of ocean acidification on predatory plankton, e.g. Hydrozoa and fish larvae as well as their interaction in complex natural communities, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To investigate the interaction between Hydrozoa and fish larvae influenced by OA ee studied OA-induced changes at the top of the food web by following ≈2000 larvae of Atlantic herring (Clupea harengus) hatched inside each mesocosm during the first week of the experiment, and a Hydrozoa population that had already established inside the mesocosms. Organisms of both taxa inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls, subsequent microscopic analyses as well as carbon to nitrogen measurements. Under OA, we detected 20% higher abundance of hydromedusae staged jellyfish, but 25% lower biomass. At the same time, survival rates of Atlantic herring larvae were higher under OA (control pCO2: 0.1%, high pCO2: 1.7%) in the final phase of the study.
    Keywords: Climate change; Cluster of Excellence: The Future Ocean; Event label; fish larvae; Food web; Fraction; FutureOcean; Hydrozoa; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; MESO; mesocosm; Mesocosm experiment; Mesocosm label; Number of individuals; Ocean acidification; plankton; Status; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 200 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 10
    facet.materialart.
    Unknown
    KOSMOS Bergen 2015 mesocosm study: C. harengus condition (2022)
    PANGAEA
    Details
    Publication Date: 2023-11-02
    Description: To evaluate the influence of ocean acidification on predatory plankton, e.g. Hydrozoa and fish larvae as well as their interaction in complex natural communities, we deployed eight pelagic mesocosms for 53 days (Mai to July) in Raunefjord, Norway, and enclosed 60 m³ of local seawater containing a natural plankton community under post-bloom conditions. Four mesocosms were manipulated to simulate extreme pCO2 levels of 2069 µatm while the other four served as untreated controls. To investigate the interaction between Hydrozoa and fish larvae influenced by OA ee studied OA-induced changes at the top of the food web by following ≈2000 larvae of Atlantic herring (Clupea harengus) hatched inside each mesocosm during the first week of the experiment, and a Hydrozoa population that had already established inside the mesocosms. Organisms of both taxa inside and outside the mesocosms were measured over the course of the experiment in regular intervals. The data stems from 55µm and 500µm Apstein net hauls, subsequent microscopic analyses as well as carbon to nitrogen measurements. Under OA, we detected 20% higher abundance of hydromedusae staged jellyfish, but 25% lower biomass. At the same time, survival rates of Atlantic herring larvae were higher under OA (control pCO2: 0.1%, high pCO2: 1.7%) in the final phase of the study.
    Keywords: Climate change; Cluster of Excellence: The Future Ocean; Day of experiment; Event label; fish larvae; Food web; FutureOcean; Hydrozoa; Individual dry mass; Individuals; KOSMOS_2015; KOSMOS_2015_Mesocosm-M1; KOSMOS_2015_Mesocosm-M2; KOSMOS_2015_Mesocosm-M3; KOSMOS_2015_Mesocosm-M4; KOSMOS_2015_Mesocosm-M5; KOSMOS_2015_Mesocosm-M6; KOSMOS_2015_Mesocosm-M7; KOSMOS_2015_Mesocosm-M8; KOSMOS Bergen; Length, standard; MESO; mesocosm; Mesocosm experiment; Mesocosm label; Method comment; Ocean acidification; Origin; plankton; Ratio; Sample code/label; Species; Status; Time in days; Treatment
    Type: Dataset
    Format: text/tab-separated-values, 5991 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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