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https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_780926 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_780926.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_780926/ public 16S rRNA gene (from DNA) from samples collected on cruise Chikyu-331 in the Okinawa Trough, Japan from September to October 2010 The purpose of this dataset was to investigate taxonomic changes via the 16S rRNA gene from extractable DNA across 45 meters of recovered core. The temperature gradient in this section of the dynamic Iheya North Hydrothermal system was estimated to be ~3C/m. The interval transitions sharply from low-temperature marine mud to hydrothermally altered clay.\n\ncdm_data_type = Other\nVARIABLES:\nCruise_ID (unitless)\nIODP_Sample_Number (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nWater_depth (meters)\nTop_Depth (meters below seafloor)\nBottom_Depth (meters below seafloor)\nSediment_type (unitless)\nEstimated_Temp (degrees Celsius)\nMGRAST_Accession_ID (unitless)\nNotes (unitless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_780926_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_780926/index.htmlTable https://www.bco-dmo.org/dataset/780926 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_780926.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_780926&showErrors=false&email= BCO-DMO bcodmo_dataset_780926
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_781114.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_781114 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_781114.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_781114/ public 16S rRNA gene (from RNA) from samples collected on cruise Chikyu-331 in the Okinawa Trough, Japan from September to October 2010 RNA extractions were attempted from sediments at Sites C0014 and C0017 to selectively investigate the active microbial populations at these sites. This study was conducted to supplement the gene-based and metagenomic studies. However, the results from sequenced reverse transcribe 16S rRNA demonstrate the sensitivity of extraction and amplification to external nucleic acids and attest to the challenges in working with low biomass environmental samples. Inconsistencies between primersets and replicates make conclusions about the results of this RNA study extremely tenuous.\n\ncdm_data_type = Other\nVARIABLES:\nCruise_ID (unitless)\nSample_Name (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nWater_depth (meters)\nTop_Depth (meters below seafloor)\nBottom_Depth (meters below seafloor)\nSediment_type (unitless)\nEstimated_Temp (degrees Celsius)\nNucleic_Acid_amplified (unitless)\nPrimer_Set_16S_rRNA (Primer Set 16 S R RNA, unitless)\nIllumina_dataset (unitless)\nNotes (unitless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_781114_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_781114/index.htmlTable https://www.bco-dmo.org/dataset/781114 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_781114.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_781114&showErrors=false&email= BCO-DMO bcodmo_dataset_781114
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_768306 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_768306.graph public Abundance of copepods in Wilkinson Basin Time Series Station, Gulf of Maine, 2005-2016 copepod abundance WBTS 2005-2016\n\ncdm_data_type = Other\nVARIABLES:\nDate (seconds since 1970-01-01T00:00:00Z)\nNET_depth\nWater_Depth\nNum_Cfin_Id_subsample\nNauplii\nCI\nCII\nCIII\nCIV\nCV\nFemale\nMale\nCalanus_finmarchicus\nCalanus_hyperboreus\nParaeucheata_spp\nPseudocalanus_spp\nCentropages_spp\nMetridia_spp\nOithona_spp\nMicrocalanus_spp\nClauso_Para_Parvo_spp\nTemora_spp\nother_copepod_spp\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_768306_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_768306/index.htmlTable https://www.bco-dmo.org/dataset/768306 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_768306.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_768306&showErrors=false&email= BCO-DMO bcodmo_dataset_768306
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_770638 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_770638.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_770638/ public Biogeochemical and sediment characteristics of the Cinder Cones Methane seep site in the Ross Sea from November 2016 These data are samples of pore water collected from a methane seep on Ross Island. This seep had been active for 5 years at the time of sampling and were collected from 10m water depth.\n\ncdm_data_type = Other\nVARIABLES:\nSite_name (unitless)\nHabitat (unitless)\nCollection_Date (unitless)\nDate (unitless)\nlatitude (Geo Loc Lat, degrees_north)\nlongitude (Geo Loc Long, degrees_east)\ndepth (Water Depth, m)\nReplicate (unitless)\nSediment_Depth (centimeters (cm))\nsampling_approach (unitless)\nFluoride (millimole (mmol))\nAcetate (millimole (mmol))\nFormate (millimole (mmol))\nChloride (millimole (mmol))\nNitrite (Mole Concentration Of Nitrite In Sea Water, millimole (mmol))\nBromide (millimole (mmol))\nSulfate (millimole (mmol))\nThiosulfate (millimole (mmol))\nLithium (millimole (mmol))\nSodium (millimole (mmol))\nAmmonium (millimole (mmol))\nPotassium (millimole (mmol))\nMagnesium (millimole (mmol))\nCalcium (millimole (mmol))\nSulfide (millimole (mmol))\nMethane_porewater (nanomole per milliliter of porewater (nmol ml-1 porewater))\n... (4 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_770638_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_770638/index.htmlTable https://www.bco-dmo.org/dataset/770638 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_770638.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_770638&showErrors=false&email= BCO-DMO bcodmo_dataset_770638
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_815380 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_815380.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_815380/ public Carbon near edge X-ray absorption fine structure (NEXAFS) spectra from pelagic sediment from the North Atlantic gyre, South Pacific gyre, and Peru Basin from cruises KN223 (R/V Knorr), KNOX02RR (R/V Roger Revelle), and ODP leg 201 between 2002 and 2014 Carbon near edge X-ray absorption fine structure (NEXAFS) spectra from pelagic sediment from the North Atlantic gyre, South Pacific gyre, and Peru Basin from cruises KN223 (R/V Knorr), KNOX02RR (R/V Roger Revelle), and ODP leg 201 between 2002 and 2014.\n\ncdm_data_type = Other\nVARIABLES:\nlocation (unitless)\nexpedition (unitless)\ndate (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (Water Depth, m)\ncore_type (unitless)\ncore_depth (meters (m))\nsite (unitless)\nsample_comment\nabsorption (unitless)\neV (E V, electron volts (eV))\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_815380_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_815380/index.htmlTable https://www.bco-dmo.org/dataset/815380 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_815380.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_815380&showErrors=false&email= BCO-DMO bcodmo_dataset_815380
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2473.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2473 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2473.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_2473/ public CTD data from R/V Alpha Helix process cruises HX242, HX244, HX247, HX271, and HX275 in the Coastal Gulf of Alaska from 2001-2003 as part of the U.S. GLOBEC program (NEP project) CTD data from R/V Alpha Helix process cruises HX242, HX244, HX247, HX271, and HX275 in the Coastal Gulf of Alaska from 2001-2003 as part of the U.S. GLOBEC program.\n\ncdm_data_type = Other\nVARIABLES:\ncruise_id (dimensionless)\nship (dimensionless)\nyear (dimensionless)\nstn_no (dimensionless)\nstn_id (dimensionless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nwater_depth (meters)\nmin_press (dBar)\nmax_press (dBar)\nmonth_gmt (GMT)\nday_gmt (GMT)\ntime_gmt (GMT)\npress (dBar *SEE NOTE 1 BELOW)\ntemp (Temperature, Degrees Celsius)\nsalinity (Sea Water Practical Salinity, psu)\nsigma_t (kg/m3)\ndyn_height (Dynamic Decimeters)\nfluor (0-5 Volts)\ntrans (0-5 Volts)\nPAR (Downwelling Photosynthetic Photon Radiance In Sea Water, 0-5 Volts)\ndepth_to_bottom (Depth, 0-5 Volts)\ninterp_code (dimensionless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_2473_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_2473/index.htmlTable https://www.bco-dmo.org/dataset/2473 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_2473.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_2473&showErrors=false&email= BCO-DMO bcodmo_dataset_2473
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_784290.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_784290 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_784290.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_784290/ public Hydrographic, nutrient and oxygen data from CTD bottles and beam transmission and fluorescence data from CTD profiles during R/V Point Sur PS1809 (HRR legs 1, 2, 3) at the Gulf Mexico, Louisiana and Texas coast, Sept-Oct 2017 Hydrographic, nutrient and oxygen data from CTD bottles and beam transmission and fluorescence data from CTD profiles during R/V Point Sur PS1809 (HRR legs 1, 2, 3) at the Gulf Mexico, Louisiana and Texas coast, Sept-Oct 2017.\n\ncdm_data_type = Other\nVARIABLES:\ncruise_id (unitless)\nleg_name (unitless)\nHRR_Leg (unitless)\nchf_sci (unitless)\nSta_Sequence (unitless)\nStation (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nWater_Depth (meters)\ntime (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)\nYear (unitless)\nMonth (mm)\nDay (dd)\ntime2 (Time, unitless)\nNiskin_Bottle_id (unitless)\ndepth (Bottle Depth, m)\nNutrient_Bottle_id (unitless)\nNO3_umol_L (Mole Concentration Of Nitrate In Sea Water, micromol/liter)\nNO3_mg_L_N (milligrams/liter)\nHPO4_umol_L (micromol/liter)\nHPO4_mg_L_P (milligrams/liter)\nHSIO3_umol_L (micromol/liter)\nHSIO3_mg_L_SiO3 (HSIO3 Mg L Si O3, milligrams/liter)\nNH4_umol_L (Mole Concentration Of Ammonium In Sea Water, micromol/liter)\nNH4_mg_L_N (milligrams/liter)\n... (24 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_784290_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_784290/index.htmlTable https://www.bco-dmo.org/dataset/784290 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_784290.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_784290&showErrors=false&email= BCO-DMO bcodmo_dataset_784290
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_753882.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_753882 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_753882.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_753882/ public Hydrographic, nutrient and oxygen data from CTD bottles during R/V Pelican cruises from 2016-06-29 to 2018-06-24 Hydrographic, nutrient and oxygen data from CTD bottles during R/V Pelican cruises.\n\ncdm_data_type = Other\nVARIABLES:\nYear (unitless)\nStation (unitless)\nMonth (unitless)\nDay (unitless)\ntime2 (Time, unitless)\ntime (Date Time, seconds since 1970-01-01T00:00:00Z)\nWater_Depth (meters)\nlatitude (degrees_north)\nlongitude (degrees_east)\nNiskin_Bottle (unitless)\ndepth (Bottle Depth, m)\nSequence (unitless)\nNutrient_Bottle_no (unitless)\nNO3_a (Mole Concentration Of Nitrate In Sea Water, umol/L)\nNO3_b (Mole Concentration Of Nitrate In Sea Water, mg/L N)\nHPO4_a (umol/L)\nHPO4_b (mg/L P)\nHSIO3_a (umol/L)\nHSIO3_b (mg/L SiO3)\nNH4_a (Mole Concentration Of Ammonium In Sea Water, umol/L)\nNH4_b (Mole Concentration Of Ammonium In Sea Water, mg/L N)\nNO2_a (Mole Concentration Of Nitrite In Sea Water, umol/L)\nNO2_b (Mole Concentration Of Nitrite In Sea Water, mg/L N)\nUrea_a (umol/L)\nUrea_b (mg/L N)\nNO3_NO2 (Mole Concentration Of Nitrate In Sea Water, uM)\nSalinity_Bottle_no (unitless)\n... (14 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_753882_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_753882/index.htmlTable https://www.bco-dmo.org/dataset/753882 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_753882.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_753882&showErrors=false&email= BCO-DMO bcodmo_dataset_753882
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_781137.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_781137 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_781137.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_781137/ public Metagenomic data from samples collected on cruise Chikyu-331 in the Okinawa Trough, Japan from September to October 2010 The purpose these metagenomic data was to capture a distinct changeover of microbial assemblages between the mesophilic horizons above 10 mbsf and the hottest (55C) hydrothermal clay horizon. In this section of the dynamic Iheya North Hydrothermal system, the temperature gradient was estimated to be ~3C/m. These metagenomes provide functional evidence to this model, demonstrating that molecular signals represent a responsive microbial community to the increasingly demanding environmental conditions.\n\ncdm_data_type = Other\nVARIABLES:\nCruise_ID (unitless)\nSample_Name (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nWater_depth (meters)\nTop_Depth (meters below seafloor)\nBottom_Depth (meters below seafloor)\nSediment_type (unitless)\nEstimated_Temp (degrees Celsius)\nMGRAST_Name (unitless)\nMGRAST_ID (unitless)\nNotes (unitless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_781137_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_781137/index.htmlTable https://www.bco-dmo.org/dataset/781137 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_781137.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_781137&showErrors=false&email= BCO-DMO bcodmo_dataset_781137
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2471 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2471.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_2471/ public Nutrient concentrations from 41 R/V Alpha Helix and R/V Wecoma Long-Term Observation Program (LTOP) cruises to the Coastal Gulf of Alaska from 1997-2004 as part of the U.S. GLOBEC program (NEP project) Nutrient concentrations from 41 R/V Alpha Helix and R/V Wecoma Long-Term Observation Program (LTOP) cruises to the Coastal Gulf of Alaska from 1997-2004 as part of the U.S. GLOBEC program.\n\ncdm_data_type = Other\nVARIABLES:\ncruise_id (dimensionless)\nship (dimensionless)\nyear (dimensionless)\nstn_no (dimensionless)\nstn_id (dimensionless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nwater_depth (meters)\nmonth_gmt (in GMT)\nday_gmt (in GMT)\ntime_gmt (in GMT)\ndepth (m)\nPO4 (Mass Concentration Of Phosphate In Sea Water, micromoles/L)\nSiOH4 (Si OH4, micromoles/L)\nNO3_NO2 (Mole Concentration Of Nitrate In Sea Water, micromoles/L)\nNO2 (Mole Concentration Of Nitrite In Sea Water, micromoles/L)\nNH4 (Mole Concentration Of Ammonium In Sea Water, micromoles/L)\nNO3 (Mole Concentration Of Nitrate In Sea Water, micromoles/L)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_2471_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_2471/index.htmlTable https://www.bco-dmo.org/dataset/2471 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_2471.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_2471&showErrors=false&email= BCO-DMO bcodmo_dataset_2471
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782736 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782736.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_782736/ public Organic carbon, d13C, and total nitrogen content of pelagic sediment from the North Atlantic gyre, South Pacific gyre, and Peru Basin from cruises KN223, KNOX02RR, and ODP leg 201 between 2002 and 2013 Organic carbon, d13C, and total nitrogen content of pelagic sediment from the North Atlantic gyre, South Pacific gyre, and Peru Basin from cruises KN223 (R/V Knorr), KNOX02RR (R/V Roger Revelle), and ODP leg 201 between 2002 and 2013.  Sediment samples were taken with gravity corers, multi corers, piston and advanced piston corers (APC).\n\ncdm_data_type = Other\nVARIABLES:\nlocation (unitless)\nexpedition (unitless)\nsite (unitless)\ndate (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (Water Depth, m)\ncore_type (unitless)\ndepth_ (Depth, meters (m))\nper_OC (percent (%))\nper_N (percent (%))\nd13C (D13 C, per mil (0/00))\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_782736_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_782736/index.htmlTable https://www.bco-dmo.org/dataset/782736 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_782736.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_782736&showErrors=false&email= BCO-DMO bcodmo_dataset_782736
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782742 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_782742.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_782742/ public Protein assay of proteinaceous material in pelagic sediment from the North Atlantic gyre, South Pacific gyre, and Peru Basin from cruises KN223, KNOX02RR, and ODP leg 201 between 2002 and 2013 Protein assay of proteinaceous material in pelagic sediment from the North Atlantic gyre, South Pacific gyre, and Peru Basin from cruises KN223 (R/V Knorr), KNOX02RR (R/V Roger Revelle), and ODP leg 201 between 2002 and 2013.  Sediment samples were taken with gravity corers, multi corers, piston and advanced piston corers (APC).\n\ncdm_data_type = Other\nVARIABLES:\nlocation (unitless)\nexpedition (unitless)\nsite (unitless)\ndate (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\ndepth (Water Depth, m)\ncore_type (unitless)\ndepth_ (Depth, meters (m))\nprotein (micrograms of protein per milligram of sediment (μg protein/mg sediment))\nprot_stdev (micrograms of protein per milligram of sediment (μg protein/mg sediment))\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_782742_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_782742/index.htmlTable https://www.bco-dmo.org/dataset/782742 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_782742.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_782742&showErrors=false&email= BCO-DMO bcodmo_dataset_782742
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_764754 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_764754.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_764754/ public Sampling locations and ancillary data for bulk chemical and molecular characterization of organic carriers and their partition coefficients with radionuclide marine tracers. To study the binding mechanisms of radionuclides to organic moieties in colloidal organic matter (COM),marine colloids (1 kDa\\u20130.2 \\u03bcm) were isolated by cross-flow ultrafiltration from seawater of the west Pacific Ocean and the northern Gulf of Mexico. For the same purpose, exopolymeric substances (EPS) produced by laboratory cultured diatoms were collected as well. In our study areas, colloidal organic carbon (COC) concentrations ranged from 6.5 to 202 \\u03bcg-C/L in the Pacific Ocean, and were 808 \\u03bcg-C/L in the Gulf of Mexico. The COM compositions (organic carbon, organic nitrogen, proteins, total hydrolysable amino acids, total polysaccharides, uronic acids, hydroxamate siderophores, hydroquinone) were quantified to examine the relationships between partition coefficients (Kc) of five different radionuclides, 234Th, 233Pa, 210Pb, 210Po and 7Be, and concentration ratios to COC of individual chelating biomolecules that could potentially act as a chelating moiety. The range of partition coefficients (Kc, reported as logKc) of radionuclides between water and the different colloidal materials was 5.12 to 5.85 for 234Th, 5.19 to 6.01 for 233Pa, 4.21 to 4.85 for 210Pb, 4.87 to 5.68 for 210Po, and 4.49 to 4.92 for 7Be, similar to values previously reported for lab and field determinations under different particle concentrations. While any relationship obtained between Kc and abundance of specific moieties could not be taken as proving the existence of colloidal organic binding ligands for the different radionuclides, it could suggest possible organic moieties involved in the scavenging of these natural radionuclides. Together with results from isoelectric focusing of radiolabeled COM, we conclude that binding to different biomolecules is nuclide-specific, with colloidal hydroxamate siderophoric moieties being important for the binding of Th and Pa radionuclides. Hydroquinones/ quinone (HQ/Q) facilitated redox and chelation reactions seem to be involved in the binding of Pa and Be. However, the actual mechanisms are not clear. Individual amino acids, proteins, total polysaccharides and uronic acids did not yield significant relationships with logKc values of the different radionuclides. Nonetheless, our results provide new insights into the relative importance of different potential ligand moieties in COM in the binding and possible scavenging of specific radionuclides in the ocean.\n\ncdm_data_type = Other\nVARIABLES:\nSample_ID (unitless)\nCruise (unitless)\n... (9 more variables)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_764754_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_764754/index.htmlTable https://www.bco-dmo.org/dataset/764754 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_764754.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_764754&showErrors=false&email= BCO-DMO bcodmo_dataset_764754
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2472.subset https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2472 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_2472.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_2472/ public Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from 1999-2004 as part of the U.S. GLOBEC program Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from 1999-2004 as part of the U.S. GLOBEC program\n\ncdm_data_type = Other\nVARIABLES:\ncruise_id (text)\nship (text)\nyear (unitless)\ncruise_alt (Text)\nTrawl_ID (station+cast numbers)\nstn_no (dimensionless)\ncast (dimensionless)\nstn_std (dimensionless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nlat_end (Latitude, decimal degrees)\nlon_end (Longitude, decimal degrees)\nwater_depth (meters ?)\nmonth_local (mm (01 to 12))\nday_local (dd (01 to 31))\ntime_start_local (HHMM)\ntime_end_local (HHMM)\nduration (hours)\ntow_dist (nautical miles)\ntow_speed (knots)\nwave_ht (text)\nwind_notes (text)\ncomments (text)\ncommon_name (text)\ngenus_species (text)\nlife_stage (text)\nabund (dimensionless)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_2472_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_2472/index.htmlTable https://www.bco-dmo.org/dataset/2472 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_2472.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_2472&showErrors=false&email= BCO-DMO bcodmo_dataset_2472
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_739309 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_739309.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_739309/ public Vulnerability of coral reefs to bioerosion from land-based sources of pollution using parameters quantified by computerized tomography. Coral Growth Parameters Quantified by Computerized Tomography (CT) for Growth Rate (cm/yr), Density (g/cm3), and Calcification Rates (g/cm2/yr), Percent Volume Erosion (%), Measured Bioerosion Rate (mg/ cm2/ yr), Predicted Bioerosion Rate (mg/cm2/ yr) Based on DeCarlo et al (2015).\n\ncdm_data_type = Other\nVARIABLES:\nDate (unitless)\nlatitude (degrees_north)\nlongitude (degrees_east)\nSample_ID (unitless)\nCore_Length (centimeters)\ndepth (Water Depth, m)\nLifespan (years)\nTissue_thickness (milimeters)\nGrowth_rate (centimeters per year)\nDensity (grams per centimeters cubed)\nBioerosion_volume (percent)\nCalcification_rate (grams per square centimeter per year)\nBioerosion_rate (miligrams per square centimeter per year)\ndelta_N_15 (per mil)\ndelta_N_15_error (per mil)\n https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_739309_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_739309/index.htmlTable https://www.bco-dmo.org/dataset/739309 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_739309.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_739309&showErrors=false&email= BCO-DMO bcodmo_dataset_739309

 
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