Muruleedhara Byappanahalli

Acoustic Doppler Current Profiler data collected in near Hammond Bay, Lake Huron, 2019

This dataset records results from a bottom-deployed upward-looking Acoustic Doppler Current Profiler (ADCP, 600 kHz Workhorse Monitor, Teledyne RD Instruments, Poway, California) deployed during the summer of 2019 (late June until early August) near Hammond Bay, Lake Huron (45.5948 degrees north, -84.1542 degrees east). Data were collected in support of nearby Cladophora and benthic algal assessments, as well as to validate hydrodynamic modeling.

Categories: Data; Tags: Lake Huron, Limnology, USGS Science Data Catalog (SDC), acoustic doppler current profiling, environment, All tags... inlandWaters, limnology, time series datasets, water circulation, Fewer tags

Grand Calumet River Area of Concern Metabarcoding Data

The Grand Calumet River flows through northwestern Indiana and was designated an EPA Area of Concern (AOC) in 1987. There are multiple legacy pollutants in the river including but not limited to heavy metals and PCBs. To investigate potential causes and patterns of eutrophication in the river, water samples were collected for 16S rRNA microbial and eukaryotic 18S rRNA amplicon sequencing during April - September 2021. This data release describes the resulting sequencing data.

Categories: Data; Tags: Aquatic Biology, DNA Sequencing, Environmental Health, Environmental Health, Eukaryotic 18S metabarcoding, All tags... Freshwater river metagenome, Genetics, Genetics, Microbial 16S metabarcoding, USGS Science Data Catalog (SDC), Water Quality, Water Quality, biota, environment, Fewer tags

Oriental Bittersweet Microbial Communities Across a Post Glacial Successional Gradient at Indiana Dunes National Park, 2017

This data release contains soil and vegetation data collected along a post glacial chronosequence associated with populations of oriental bittersweet (Celastrus orbiculatus) at the Indiana Dunes National Park. The post glacial chronosequence includes sand dunes and moraines, representing a successional gradient from woodland transition, to oak savanna, woodland and forest, to oak hickory forests on the Lake Border Moraine. Soil samples were collected from August 24, 2017 to September 1, 2017; vegetation cover data (percent cover by species) were collected from 1/4-meter squared plots (0.5 by 0.5 m) where the soil samples were taken. DNA extracted from soil and rhizosphere samples were analyzed for bacterial communities...

Categories: Data; Tags: Botany, Ecology, Indiana, Indiana Dunes National Lakeshore, Indiana Dunes National Park, All tags... Indiana Dunes National Park, Lake Michigan, Microbial Communities, Soil Sciences, The Dunes, USGS Science Data Catalog (SDC), environment, farming, soil, soil chemistry, soil sciences, succession (biological), time sequence, vegetation, Fewer tags

Eutrophication and plankton communities (Cyanobacteria and eukaryotic algae) in the Grand Calumet River Area of Concern, Indiana, 2021

The data being released were part of a project funded by the United States Environmental Protection Agency (USEPA). This study sought to identify the planktonic communities (cyanobacteria, eukaryotic algae) potentially contributing to eutrophication within the Grand Calumet River Area of Concern (AOC) in northern Indiana along the southern shore of Lake Michigan. In 2021, triplicate water samples were collected from five locations during three events, 4/19/21 and 4/20/21, 7/7/21, and 9/15/21. Water samples were processed and planktonic communities were determined by a DNA-based technology (algal metabarcoding). Sampling locations: 1. Columbia Avenue, Hammond, IN 2. Lake George drainage ditch, Hammond, IN 3. Indiana...

Categories: Data; Tags: Aquatic Biology, DNA sequencing, East Chicago, Indiana, Ecology, Gary, Indiana, All tags... Genetics, Grand Calumet River, Hammond, Indiana, Lake Michigan, Microbial Communities, USGS Science Data Catalog (SDC), Water Quality, biota, ecology, freshwater ecosystems, microbiology, polymerase chain reaction, water sampling, Fewer tags

Quantification of nitrogen-fixing microorganisms (targeting nifH gene) in Cladophora algae by quantitative polymerase chain reaction (qPCR)

Data were collected to determine the abundance of nitrogen-fixing microorganisms in Cladophora algae growing on rocks, breakwall structures, or submerged dreissenid mussel beds around southern Lake Michigan. Cladophora samples (N=33) were collected between June and September 2015 from three urban areas: (a) Jeorse Park, East Chicago, Indiana, (b) Calumet Beach, Chicago, Illinois, and (c) North Beach, Racine, Wisconsin, and a National Park site, Portage Lakefront, Indiana Dunes National Park, Indiana. Corresponding lake water samples (N=33) were collected approximately 15-20 feet away from submerged algal mats. Genomic DNA was extracted from water and processed algal samples. The abundance of nitrogen-fixing microorganisms...

Categories: Data; Tags: Algae and water samples, Great Lakes Region, Lake Michigan, Nearshore submerged vegetation, USGS Science Data Catalog (SDC), All tags... algae, biota, economy, freshwater ecosystems, microbiology, nuisance species, nutrient cycling, polymerase chain reaction, Fewer tags