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Phytoplankton identification and enumeration data within an algal bloom at Lost Bay, Kabetogama Lake, northern Minnesota, 2022 Phytoplankton identification and enumeration data within an algal bloom at Lost Bay, Kabetogama Lake, northern Minnesota, 2022
This data release provides phytoplankton identification and enumeration data from an algal bloom at Lost Bay on Kabetogama Lake (USGS site ID 482747092503001) collected on September 20, 2022. These data were collected using a systematic grid design, 3 rows by 4 columns grid cells, where each grid cell contained a single sample location. A near-shore sample location, just outside the...
Phytoplankton pigment data collected from surface waters in the Lake Pontchartrain estuary, Louisiana, from November 2024 to May 2025 Phytoplankton pigment data collected from surface waters in the Lake Pontchartrain estuary, Louisiana, from November 2024 to May 2025
Monthly surface water samples were collected at sites in the Lake Pontchartrain estuary to assess the phytoplankton biomass and composition using algal pigment analysis. A total of 27 algal pigments including chlorophyll a and accessory pigments were evaluated from each of the water samples.
Phytoplankton Species Composition and Abundance in the Sacramento-San Joaquin River Delta: Microscopic Enumeration of USGS Samples, beginning in 2016 (ver. 2.0, December 2025) Phytoplankton Species Composition and Abundance in the Sacramento-San Joaquin River Delta: Microscopic Enumeration of USGS Samples, beginning in 2016 (ver. 2.0, December 2025)
This dataset contains multiple types of data characterizing phytoplankton in the Sacramento-San Joaquin Delta (California, USA). 1) Bright field microscopy was used to identify and enumerate phytoplankton community composition; 2) Epifluorescent microscopy was used to enumerate picophytoplankton (phytoplankton cells less than 2 microns in diameter) and, 3) a categorical visual index...
Phytoplankton, algal toxin, and water-quality data for Blue Mesa Reservoir, Colorado, 1970–2023 Phytoplankton, algal toxin, and water-quality data for Blue Mesa Reservoir, Colorado, 1970–2023
Blue Mesa Reservoir (Blue Mesa) is the largest storage reservoir in Colorado and is used for water supply and recreation. The reservoir consists of three distinct basins which are, moving from east to west, Iola, Cebolla, and Sapinero. This data release includes a wide variety of data collected to understand conditions that contribute to algal blooms in Blue Mesa. Data include...
Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022 Pickle Pond pre-restoration orthomosaic and elevation products, Superior, Wisconsin, September 2022
The orthomosaic, digital surface model and point cloud presented here document conditions at Pickle Pond in Superior, Wisconsin in September 2022, prior to planned ecological restoration. Images were collected using a 3D Robotics Solo aircraft with GNSS GPS upgrade, Mission Planner software, and a Pentax Ricoh GRII 3-band digital camera sensor. Imagery acquisition flights were...
Pier structure geometry data for section and side views at selected bridge sites in Montana Pier structure geometry data for section and side views at selected bridge sites in Montana
The U.S. Geological Survey (USGS), in cooperation with the Montana Department of Transportation (MDT), collected various data at selected bridges in Montana. The data collected in the field included streambed cross-section data, longitudinal streambed profile data, and water-surface profile data. Efforts included overlaying pier structure geometry on the plots to demonstrate the position...
Pigmy Basin Cores MD02-2553 and PBBC-1 Foraminiferal Census Data Pigmy Basin Cores MD02-2553 and PBBC-1 Foraminiferal Census Data
Paleoceanographers use the distribution of planktic foraminifers in downcore sediment samples to estimate past oceanographic and paleoclimate conditions. In this data release, U.S. Geological Survey (USGS) scientists provide foraminiferal census data (species relative abundance and raw counts) from cores taken in Pigmy Basin (located in the Gulf of America) aboard the research vessel (R...
Piping plover adult breeding dispersal and annual survival in the northern Great Plains, USA, 2014 - 2019 Piping plover adult breeding dispersal and annual survival in the northern Great Plains, USA, 2014 - 2019
We present a tabular data set representing values used to evaluate intrinsic factors of breeding dispersal and annual survival for northern Great Plains piping plovers (Charadrius melodus) from 2014 – 2019. Data was collected on wetlands and on the Missouri River in North Dakota, South Dakota, and Montana. Data includes breeding state specific observations of adults. The associated...
PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 5.0, March 2025) PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 5.0, March 2025)
Note: this data release has been superseded by version 6.0, available here: https://doi.org/10.5066/P13W2IHB Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus)...
PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 6.0, September 2025) PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 6.0, September 2025)
Note: this data release has been superseded by version 7.0, available here: https://doi.org/10.5066/P14NTJSJ Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus)...
Plains bison genetic data and genetic locus panel selection algorithm for monitoring conservation herds Plains bison genetic data and genetic locus panel selection algorithm for monitoring conservation herds
We developed and report a microsatellite data set composed of 52 microsatellite loci for 2305 individuals from 20 bison conservation herds (17 US federal, 1 tribal, 2 Canadian) and a single nucleotide polymorphism (SNP) data set composed of 5013 biallic loci for 376 individuals from 16 bison conservation herds that were used as part of a broader study. We also developed an algorithm to...
Planktic foraminifer occurrence data from SE Virginia and Florida Pliocene samples Planktic foraminifer occurrence data from SE Virginia and Florida Pliocene samples
Data represent presence/absence of planktic foraminifer species in samples from Carters Grove, Virginia, and the Phred1 core located west of Vero Beach, Florida.