Leetown Science Center

Data and Tools

Filter Total Items: 41
Date published: May 28, 2021

Morphometric, Age and Concentrations of Perfluoroalkyl Substances in Smallmouth Bass Plasma from Four Sites in the Chesapeake Bay Watershed

Archived plasma from fish health monitoring sites within the Chesapeake Bay watershed was analyzed for 13 perfluoroalkyl compounds. Smallmouth bass were collected from two sites in the Potomac River drainage (Antietam Creek, Maryland and South Branch Potomac, West Virginia) and two in the Susquehanna River drainage (West Branch Mahantango Creek, Pennsylvania and Pine Creek, Pennsylvania).

Date published: May 25, 2021

Attribution of Chessie BIBI and fish sampling data to NHDPlusV2 Catchments within the Chesapeake Bay Watershed

This data release links fish survey data from a suite of programs in the Chesapeake Bay watershed as well the benthic macroinvertebrate sites included in the Chesapeake Bay Basin-wide Index of Biotic Integrity (Chessie BIBI) developed by the Interstate Commission on the Potomac River Basin (ICPRB) and available from the Chesapeake Bay Program.

Date published: April 22, 2021

USGS Chesapeake Bay Study Locations Related to Theme 1 Activities

These layers are a compilation of study sites, watersheds, and areas of interest associated with the USGS Chesapeake Bay Theme 1 activities. Locations in this dataset were compiled from various USGS Chesapeake Bay activities and with input from USGS scientists to indicate study areas under multiple projects associated with USGS Chesapeake Bay Science Theme 1 activities.

Date published: December 22, 2020

Rusty Patched Bumble Bee Pollen Metagenome

The rusty-patched bumble bee (Bombus affinis) is a listed species under the Endangered Species Act of the United States. While understood to be a highly generalist forager, little is known on the role that limited floral resources or shifting floral community composition could have played in B. affinis decline. Determining which floral species provide suitable B. affinis forage could assist...

Date published: December 17, 2020

Land Cover, Climate, and Geological conditions summarized within Maryland DNR Biological Stream Survey (MBSS) Catchments

This dataset consists of several measures of landscape characteristics, each of which is summarized from raster data within spatial polygons. These spatial polygons represent the land area upstream of sampled stream reaches. These stream reaches were sampled by the Maryland Department of Natural Resources for the Maryland Biological Stream Survey program during survey rounds one, two, and f...

Date published: October 6, 2020

Stream temperature and sculpin growth data collected from Catoctin Mountain Park in 2019

This Data Release includes records of stream temperature during summer months of 2019 (10 sites) and records of Blue Ridge sculpin (Cottus caeruleomentum) weight for fish held in experimental enclosures for 45 days during the temperature sampling period (5 sites).

Date published: September 24, 2020

Presence and prevalence of pathogens among amphibians of Catoctin Mountain Park, 2014

Data described herein was collected by USGS personnel and the project funded by USGS and the National Park Service (Catoctin Mountain Park) through a FY14 NRPP project involving both agencies and developed to detect the presence and prevalence of ranavirus and chytrid pathogens among amphibians of Catoctin Mountain Park (CATO). Supplemental molecular analyses were performed on behalf of

Date published: September 14, 2020

Topobathymetric elevation models of the upper Delaware River, USA - Version 1

This dataset includes topographic elevations (in meters) surrounding and bathymetric elevations within the upper Delaware River (USA). Bathymetric lidar data was acquired using the Experimental Advanced Airborne Research Lidar, version B. The EAARL-B is a successor instrument to the original EAARL bathymetric LiDAR sensor developed for mapping coral reef environments in clear water, b

Date published: July 30, 2020

Abundance of 50 transcripts from microdissected liver samples of smallmouth bass

There is an increasing emphasis on effects-based monitoring to document responses associated with exposure to complex mixtures of chemicals, climate change, pathogens, parasites and other environmental stressors in fish populations. For decades aquatic monitoring programs have included the collection of tissues preserved for microscopic pathology. Consequently, formalin-fixed, paraffi

Date published: July 8, 2020

Physiological changes in response to salinity and cortisol treatment in Atlantic sturgeon

The dataset are the results of studies examining the osmoregulatory physiology of Atlantic sturgeon (Acipenser oxyrinchus). Two experiments were conducted on physiological responses to salinity change, and another experiment on the effects of cortisol treatment on osmoregulation.

Date published: June 25, 2020

Pine Creek Freshwater Mussel Qualitative Surveys: 1995 - 2009

Data are included for field surveys conducted for freshwater mussels within the Pine Creek watershed in the Mid-Atlantic region of the United States. Timed search (qualitative) surveys were conducted in ~200 meter sections of river between 1995 and 2009; The number of mussels of each species and associated search time were recorded for each survey section to determine a catch per unit ef

Date published: June 25, 2020

Neversink River freshwater mussel surveys: 2006-2009

Data are included for two types of field surveys conducted for freshwater mussels within the Neversink River in the Mid-Atlantic region of the United States. Timed search (qualitative) surveys were conducted in consecutive ~200 meter sections of river in 2006 and 2007; a subset of these sections were re-surveyed qualitatively in 2009. The number of mussels of each species and associated