Search results for "Biospheric Sciences"

showing 3 items of 3 documents

KOSMOS 2017 Peru mesocosm study: overview data

2020

Eastern boundary upwelling systems (EBUS) are among the most productive marine ecosystems on Earth. The production of organic material is fueled by upwelling of nutrient-rich deep waters and high incident light at the sea surface. However, biotic and abiotic factors can mod- ify surface production and related biogeochemical processes. Determining these factors is important because EBUS are considered hotspots of climate change, and reliable predic- tions of their future functioning requires understanding of the mechanisms driving the biogeochemical cycles therein. In this field experiment, we used in situ mesocosms as tools to improve our mechanistic understanding of processes con- trolling…

KOSMOS_2017Binary ObjectMesocosm experimentClimate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)Climate Biogeochemistry Interactions in the Tropical Ocean SFB754BiogeochemistryBinary Object Media TypeNatural SciencesBinary Object (File Size)Binary Object File SizeBiospheric SciencesGeosciencesBinary Object (Media Type)
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Morphological determination of the phototrophic community composition of biological soil crusts in coastal sand dunes in northern Germany

2022

This dataset comprises the microbial community composition of biological soil crusts in north-German sand dunes. For this we obtained enrichment cultures of phototrophic microorganisms, by placing fragments of biocrusts of the same Petri dishes as used for sequencing, in Petri dishes with Bold Basal (1N BBM) agarized medium (Bischoff and Bold 1963). Cultures were grown under standard laboratory conditions: with a 12-hour alteration of light and dark phases and irradiation of 25 μmol photons m-2 s-1 at a temperature 20 ± 5 ºС. Microscopic study of these raw cultures began in the third week of cultivation. Morphological examinations were performed using Olympus BX53 light microscope with Noma…

Nostoc cf linckiaNodosilinea cf. epilithicaTetracystis cf. sarcinalisCylindrocystis cf crassaPtychostomum moravicumElliptochloris subsphaericaThin layer chromatographyAsterococcus spCylindrocystis cf. crassaCladonia phyllophoraChloroidium cf ellipsoideumChlorolobion sp.Hypnum cupressiforme var lacunosumHypogymnia physodesStichococcus cf. bacillarisEremochloris spCrustsParmelia sulcataStenomitos sp.algaeBracteacoccus sp.Chlorococcum spPtychostomum capillarewith Nomarski DIC opticsCladonia chlorophaeaCladonia foliaceaBiospheric SciencesMyrmecia cf irregularisField experimentNodosilinea cf epilithicaBacidina etayanaPolytrichum juniperinumCoccomyxa sp.Placynthiella uliginosaLeptolyngbya spPohlia nutansCladonia furcataPeltigera extenuataWatanabea cf. acidophilaGeosciencesChloroidium cf. ellipsoideumLongitude of eventWatanabea cf acidophilaParietochloris cf. alveolarisPtychostomum imbricatulumSiteLight microscope Olympus Ltd BX53 with Nomarski DIC opticsDicranum scopariumSyntrichia ruraliformisBX53Pseudochlorella spKlebsormidium cf flaccidumOlympus LtdCladonia novochlorophaeaDATE TIMECladonia cocciferaCladonia conistaNostoc cf. linckiaDiplosphaera chodatii16S rRNAOxyrrhynchium praelongumTetracystis cf sarcinalisChlorokybus atmophyticusNostoc sp.Interfilum cf. massjukiaeMicarea misellaCoelastrella spStenomitos spNostoc spEvent labelLecanora hageniiPolytrichum piliferumTetradesmus arenicolaElevation of eventPlanophila spChlorococcum sp.Campylopus introflexusCladonia ramulosaCephaloziella divaricataPseudochlorella sp.Nostoc cf. communeChlorolobion spNannochloris spCladonia rangiformisMacrochloris spNannochloris sp.Cladonia fimbriataEvernia prunastriCaloplaca cerinellaLecania cyrtellaLecanora persimilisCladonia subulataPseudoscleropodium purumStichococcus cf bacillarisLatitude of eventLight microscopeInterfilum terricolaCladonia glaucaCladonia portentosaPlanophila sp.Spongiochloris spCladonia reisediment analysisCladonia gracilisHypnum cupressiformeTolypothrix cf. byssoideaCeratodon purpureusEcologyCladonia uncialis ssp biuncialisPseudomuriella cf. aurantiacaCylindrocystis sp.Klebsormidium cf. subtileRacomitrium canescensMicrocoleus vaginatusCoccomyxa spCylindrocystis spLobochlamys sp.soil ecologyXanthoria parietinaCladonia ciliataHypnum cupressiforme var. lacunosumActinochloris terrestrisInterfilum cf massjukiaeNatural SciencesChlorella vulgarisMacrochloris sp.Coelastrella sp.Bracteacoccus spRacomitrium elongatumCladonia scabriusculaNostoc cf. edaphicumStichococcus allasLocationNostoc cf edaphicumKlebsormidium cf. flaccidumLophozia bicuspidataPseudomuriella cf aurantiacaKlebsormidium crenulatumduneNostoc cf communeLeptolyngbya sp.Ptilidium ciliatumCladonia macilentaMyrmecia cf. irregularisPtychostomum compactumLobochlamys spPleurozium schreberiCladonia arbusculaPhyscia tenellaBrachythecium albicansPeltigera hymeniaAmandinea punctataTimaviella sp.Scoliciosporum galluraeParietochloris cf alveolarisAsterococcus sp.Hennediella heimiiTimaviella spDATE/TIMECladonia humilisBryum capillareTolypothrix cf byssoideaKlebsormidium cf subtileEremochloris sp.Cladonia floerkeanaSpongiochloris sp.Cladonia uncialis ssp. biuncialisHypnum jutlandicum
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KOSMOS 2017 Peru Side Experiment: nutrients, phytoplankton abundances, enzyme rates, photophysiology

2022

This data was collected during an short-term incubation experiment in March 2017 that investigated the response of a surface plankton community to upwelling. This experiment was carried in the framework of the SFB754-funded KOSMOS mesocosm study that took place in La Punta, Callao, Peru between February-April 2017. A total of six different treatments were used to disentangle chemical and biological characteristics of deep water that influence surface plankton blooms: 2 different deep water sources with different nutrient concentrations; 3 treatments to distinguish the effects of inorganic nutrients, organic nutrients and deep water microbial populations. Measured variables include inorganic…

ratioDay of experimentSFB754colored dissolved organic matter at 325 nmNitriteChlorophyll aAbsorption coefficient colored dissolved organic matter at 254 nmClimate - Biogeochemistry Interactions in the Tropical Ocean (SFB754)colorimetric determinationFluorometerFluorometricNitrateNanoplanktonPhytoplankton cells phycocyanin-containing (FL-4)PicoeukaryotesFluorometer fast repetition rateCalculatedFlow cytometryNutrient consumption ratioforward scatterSynechococcusupwelling systemsMesocosm experimentSpectrophotometricClimate Biogeochemistry Interactions in the Tropical Ocean SFB754SilicateBiogeochemistryBiospheric SciencesMaximum photochemical quantum yield of photosystem IIenzyme activitycell sizeDissolved inorganic nitrogen/dissolved inorganic phosphorus ratioKOSMOS_2017chainsAbsorption coefficient colored dissolved organic matter 250 nm/365 nm ratioeastern tropical South Pacific OceanKOSMOSExcess phosphateAbsorption coefficient colored dissolved organic matter at 325 nmNatural SciencesGeosciencescolored dissolved organic matter at 254 nmphycocyanin containing FL 4Absorption coefficientPhosphateTank numberPhytoplankton cells chainsNetwork of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the ArctReplicatenutrientsfast repetition rateDATE TIMECryptophytesMicrophytoplanktonPhytoplankton cellsLeucine aminopeptidase activityDissolved inorganic nitrogen dissolved inorganic phosphorus ratiofungiEnzymatic assayContinuous flow analyserTreatmentDATE/TIMEcolored dissolved organic matter 250 nm 365 nmPhytoplanktonPhytoplankton cell size forward scatterNetwork of Leading European AQUAtic MesoCOSM Facilities Connecting Mountains to Oceans from the Arctic to the Mediterranean (AQUACOSM)CDOMContinuous flow analyser colorimetric determinationNitrate and Nitrite
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