| _version_ | 1867172205635305472 |
|---|---|
| author | Diefendorf, Aaron F Dietrich, Watts Naake, Hans H Lowell, Thomas V Corcoran, Megan C |
| author_facet | Diefendorf, Aaron F Dietrich, Watts Naake, Hans H Lowell, Thomas V Corcoran, Megan C |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Diatom-derived highly branched isoprenoids (HBIs) are found extensively in marine sediments, but are observed in a limited number of lake sediments. To expand on this record, between 2022 and 2024, we collected lake surface sediment samples from 50 lakes in the United States of America from the Midwest and Northeast. Studied lakes capture a range in climate, water chemistry (e.g., pH, salinity, alkalinity), size, and trophic states. Lakes also vary in their diatom species compositions. Water was collected for water chemistry at three depths including the "surface" at 10 cm depth, an "integrated" surface sample, and "deep" water (2 m above sediment/water interface) when lake depth permitted. The integrated sample was designed to collect the water from the euphotic zone where phytoplankton are concentrated. Water was sampled from the euphotic zone (calculated as 2 times the Secchi disk depth) using an integrated water sampler fabricated from a 2 m long x 5.2 cm ID PVC pipe (2" nominal schedule 40 PVC pipe) fitted with a ball valve at the top. When the euphotic zone was >2 m, only the upper 2 m was sampled. When the euphotic zone intersected with the sediment/water interface, water was collected from the surface to 0.5 m above the sediment/water interface. Discrete water samples were collected at other depths using a horizontal water sampler. Water samples were analyzed for alkalinity, dissolved inorganic carbon (DIC) concentration, and DIC carbon isotopes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_979618 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Lake water sample chemistry Diefendorf, Aaron F Dietrich, Watts Naake, Hans H Lowell, Thomas V Corcoran, Megan C Alkaline Lake; Alkalinity, total; Alkalinity, total, standard deviation; Bassett Lake; Big Carr Lake; Big Kandiyohi Lake; Biomarkers; Brown Lake; Carbon, inorganic, dissolved; carbon isotope composition of DIC; Carbon isotopes; Cathance Lake; Chazy Lake; Cold Stream lower; Cold Stream upper; DATE/TIME; Debar Pond; DEPTH, water; Depth, water, bottom/maximum; Depth, water, top/minimum; Devils Lake; DIA-20-OH_Brown-1w; DIA-22-IN_Martin-1w; DIA-22-IN_Martin-2w; DIA-22-IN_Olin-1w; DIA-22-IN_Olin-2w; DIA-22-IN_Oliver-1w; DIA-22-IN_Pretty-1w; DIA-22-IN_Pretty-2w; DIA-22-IN_Pretty-3w; DIA-22-IN_Pretty-4w; DIA-22-IN_Skinner-1w; DIA-22-IN_Smith-1w; DIA-22-IN_Smith-2w; DIA-22-MN_Bassett-1w; DIA-22-MN_BigK-1w; DIA-22-MN_Green-1w; DIA-22-MN_Green-2w; DIA-22-MN_Jennie-1w; DIA-22-MN_Kylen-1w; DIA-22-MN_Long-1w; DIA-22-MN_Nest-1w; DIA-22-ND_Alk-1w; DIA-22-ND_Devils-1w; DIA-22-ND_Isabel-1w; DIA-22-ND_Moon-1w; DIA-22-ND_Spirit-1w; DIA-22-ND_Stump-1w; DIA-22-OH_Brown-1w; DIA-22-SD_Haze-1w; DIA-22-SD_Lynn-1w; DIA-22-WI_BigCarr-1w; DIA-22-WI_Bolger-1w; DIA-22-WI_McGrath-1w; DIA-22-WI_Plum-1w; DIA-23-ME_Cathance-1w; DIA-23-ME_CSL-1w; DIA-23-ME_CSU-1w; DIA-23-ME_Harrington-1w; DIA-23-ME_Lower_Sys-1w; DIA-23-ME_Maranacook-1w; DIA-23-ME_Mud-1w; DIA-23-ME_Nesowad-1w; DIA-23-ME_Unity-1w; DIA-23-ME_West-1w; DIA-23-NH_Magalloway-1w; DIA-23-NH_Umbagog-1w; DIA-23-NH_Umbagog-2w; DIA-23-NY_E_Pine-1w; DIA-23-NY_E_Pine-2w; DIA-23-NY_Heart-1w; DIA-23-NY_LGP-1w; DIA-23-NY_Moose-1w; DIA-23-NY_Raquette-1w; DIA-23-NY_Sucker-1w; DIA-23-VT_Maidstone-1w; DIA-23-VT_Maidstone-2w; DIA-23-VT_Maidstone-3aw; DIA-23-VT_Maidstone-4aw; DIA-23-VT_Maidstone-5aw; DIA-23-VT_Maidstone-6aw; DIA-23-VT_Maidstone-7aw; DIA-23-VT_Maidstone-8aw; DIA-24-ME_CSL-1w; DIA-24-ME_CSL-4w; DIA-24-ME_CSU-1w; DIA-24-ME_CSU-2w; DIA-24-ME_Harrington-1w; DIA-24-ME_Lower_Sys-1w; DIA-24-ME_Maranacook-1w; DIA-24-ME_Mud-1w; DIA-24-ME_Unity-1w; DIA-24-ME_West-1w; DIA-24-NH_Magalloway-1w; DIA-24-NH_Umbagog-1w; DIA-24-NY_Chazy-1; DIA-24-NY_Chazy-2; DIA-24-NY_Debar-1; DIA-24-NY_E_Pine-1; DIA-24-NY_E_Pine-2; DIA-24-NY_Heart-1; DIA-24-NY_Horseshoe-1; DIA-24-NY_LGP-1w; DIA-24-NY_Moose-1; DIA-24-NY_Moose-2; DIA-24-NY_Quiver-1; DIA-24-NY_Raquette-1; DIA-24-NY_Sucker-1; DIA-24-NY_Sucker-2; DIA-24-NY_Wolf-1; DIA-24-NY_Wolf-2; DIA-24-NY_Wolf-3; DIA-24-VT_Maidstone-1w; diatoms; East Pine Pond; ELEVATION; Event label; Green Lake; Harrington Lake; Hazelden Lake; Heart Lake; highly branched isoprenoid (HBI); Highly branched isoprenoid (HBI) biomarkers; Horseshoe Lake; Isabel Lake; Kylen Lake; Lake Bolger; Lake Jennie; lakes; Lake sediment; LATITUDE; Little Green Pond; LONGITUDE; Long Lake; Lower Sysladobsis Lake; Lynn Lake; Magalloway River; Maidstone Lake; Maranacook Lake; Martin Lake; McGrath Lake; Moon Lake; Moose Pond; Mud Pond; MULT; Multiple investigations; Nesowadnehunk Lake; Nest Lake; Number of observations; Olin Lake; Oliver Lake; Organic Geochemistry; Phosphate; Plum Lake; Pretty Lake; Quiver Pond; Raquette Lake; Sample type; Silica, dissolved; Site; Skinner Lake; Smith Hole; Spiritwood Lake; Stump Lake; Sucker Lake; Umbagog Lake; Umbagog Lake at river inlet; United States of America; Unity Pond; Water sample; West Lake; Wolf Pond; WS; δ13C, dissolved inorganic carbon; δ13C, dissolved inorganic carbon, standard deviation Diatom-derived highly branched isoprenoids (HBIs) are found extensively in marine sediments, but are observed in a limited number of lake sediments. To expand on this record, between 2022 and 2024, we collected lake surface sediment samples from 50 lakes in the United States of America from the Midwest and Northeast. Studied lakes capture a range in climate, water chemistry (e.g., pH, salinity, alkalinity), size, and trophic states. Lakes also vary in their diatom species compositions. Water was collected for water chemistry at three depths including the "surface" at 10 cm depth, an "integrated" surface sample, and "deep" water (2 m above sediment/water interface) when lake depth permitted. The integrated sample was designed to collect the water from the euphotic zone where phytoplankton are concentrated. Water was sampled from the euphotic zone (calculated as 2 times the Secchi disk depth) using an integrated water sampler fabricated from a 2 m long x 5.2 cm ID PVC pipe (2" nominal schedule 40 PVC pipe) fitted with a ball valve at the top. When the euphotic zone was >2 m, only the upper 2 m was sampled. When the euphotic zone intersected with the sediment/water interface, water was collected from the surface to 0.5 m above the sediment/water interface. Discrete water samples were collected at other depths using a horizontal water sampler. Water samples were analyzed for alkalinity, dissolved inorganic carbon (DIC) concentration, and DIC carbon isotopes. |
| title | Lake water sample chemistry |
| topic | Alkaline Lake; Alkalinity, total; Alkalinity, total, standard deviation; Bassett Lake; Big Carr Lake; Big Kandiyohi Lake; Biomarkers; Brown Lake; Carbon, inorganic, dissolved; carbon isotope composition of DIC; Carbon isotopes; Cathance Lake; Chazy Lake; Cold Stream lower; Cold Stream upper; DATE/TIME; Debar Pond; DEPTH, water; Depth, water, bottom/maximum; Depth, water, top/minimum; Devils Lake; DIA-20-OH_Brown-1w; DIA-22-IN_Martin-1w; DIA-22-IN_Martin-2w; DIA-22-IN_Olin-1w; DIA-22-IN_Olin-2w; DIA-22-IN_Oliver-1w; DIA-22-IN_Pretty-1w; DIA-22-IN_Pretty-2w; DIA-22-IN_Pretty-3w; DIA-22-IN_Pretty-4w; DIA-22-IN_Skinner-1w; DIA-22-IN_Smith-1w; DIA-22-IN_Smith-2w; DIA-22-MN_Bassett-1w; DIA-22-MN_BigK-1w; DIA-22-MN_Green-1w; DIA-22-MN_Green-2w; DIA-22-MN_Jennie-1w; DIA-22-MN_Kylen-1w; DIA-22-MN_Long-1w; DIA-22-MN_Nest-1w; DIA-22-ND_Alk-1w; DIA-22-ND_Devils-1w; DIA-22-ND_Isabel-1w; DIA-22-ND_Moon-1w; DIA-22-ND_Spirit-1w; DIA-22-ND_Stump-1w; DIA-22-OH_Brown-1w; DIA-22-SD_Haze-1w; DIA-22-SD_Lynn-1w; DIA-22-WI_BigCarr-1w; DIA-22-WI_Bolger-1w; DIA-22-WI_McGrath-1w; DIA-22-WI_Plum-1w; DIA-23-ME_Cathance-1w; DIA-23-ME_CSL-1w; DIA-23-ME_CSU-1w; DIA-23-ME_Harrington-1w; DIA-23-ME_Lower_Sys-1w; DIA-23-ME_Maranacook-1w; DIA-23-ME_Mud-1w; DIA-23-ME_Nesowad-1w; DIA-23-ME_Unity-1w; DIA-23-ME_West-1w; DIA-23-NH_Magalloway-1w; DIA-23-NH_Umbagog-1w; DIA-23-NH_Umbagog-2w; DIA-23-NY_E_Pine-1w; DIA-23-NY_E_Pine-2w; DIA-23-NY_Heart-1w; DIA-23-NY_LGP-1w; DIA-23-NY_Moose-1w; DIA-23-NY_Raquette-1w; DIA-23-NY_Sucker-1w; DIA-23-VT_Maidstone-1w; DIA-23-VT_Maidstone-2w; DIA-23-VT_Maidstone-3aw; DIA-23-VT_Maidstone-4aw; DIA-23-VT_Maidstone-5aw; DIA-23-VT_Maidstone-6aw; DIA-23-VT_Maidstone-7aw; DIA-23-VT_Maidstone-8aw; DIA-24-ME_CSL-1w; DIA-24-ME_CSL-4w; DIA-24-ME_CSU-1w; DIA-24-ME_CSU-2w; DIA-24-ME_Harrington-1w; DIA-24-ME_Lower_Sys-1w; DIA-24-ME_Maranacook-1w; DIA-24-ME_Mud-1w; DIA-24-ME_Unity-1w; DIA-24-ME_West-1w; DIA-24-NH_Magalloway-1w; DIA-24-NH_Umbagog-1w; DIA-24-NY_Chazy-1; DIA-24-NY_Chazy-2; DIA-24-NY_Debar-1; DIA-24-NY_E_Pine-1; DIA-24-NY_E_Pine-2; DIA-24-NY_Heart-1; DIA-24-NY_Horseshoe-1; DIA-24-NY_LGP-1w; DIA-24-NY_Moose-1; DIA-24-NY_Moose-2; DIA-24-NY_Quiver-1; DIA-24-NY_Raquette-1; DIA-24-NY_Sucker-1; DIA-24-NY_Sucker-2; DIA-24-NY_Wolf-1; DIA-24-NY_Wolf-2; DIA-24-NY_Wolf-3; DIA-24-VT_Maidstone-1w; diatoms; East Pine Pond; ELEVATION; Event label; Green Lake; Harrington Lake; Hazelden Lake; Heart Lake; highly branched isoprenoid (HBI); Highly branched isoprenoid (HBI) biomarkers; Horseshoe Lake; Isabel Lake; Kylen Lake; Lake Bolger; Lake Jennie; lakes; Lake sediment; LATITUDE; Little Green Pond; LONGITUDE; Long Lake; Lower Sysladobsis Lake; Lynn Lake; Magalloway River; Maidstone Lake; Maranacook Lake; Martin Lake; McGrath Lake; Moon Lake; Moose Pond; Mud Pond; MULT; Multiple investigations; Nesowadnehunk Lake; Nest Lake; Number of observations; Olin Lake; Oliver Lake; Organic Geochemistry; Phosphate; Plum Lake; Pretty Lake; Quiver Pond; Raquette Lake; Sample type; Silica, dissolved; Site; Skinner Lake; Smith Hole; Spiritwood Lake; Stump Lake; Sucker Lake; Umbagog Lake; Umbagog Lake at river inlet; United States of America; Unity Pond; Water sample; West Lake; Wolf Pond; WS; δ13C, dissolved inorganic carbon; δ13C, dissolved inorganic carbon, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.979618 |