Filters: Tags: Brook trout (X)
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Background Deoxyribonucleic acid (DNA) is the hereditary material in organisms that contains the biological instructions for building and maintaining them. The chemical structure of DNA is the same for all organisms, but differences exist in the order of the DNA building blocks, known as base pairs. Unique sequences provide a means to identify individual species and detect their presence within aquatic or terrestrial environments. Environmental DNA (eDNA) is nuclear or mitochondrial DNA that is shed from an organism into the environment. Sources of eDNA include feces, mucous, and gametes; shed skin; and carcasses. In aquatic environments, eDNA is diluted and distributed by currents and other hydrological processes....
Categories: Data,
Project;
Types: Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
Shapefile;
Tags: Adirondacks,Adirondack Mountains,
Aquatic Community Health,
Aquatic Community Health,
Aquatic Community Health,
Completed,
This data set includes paired air and water temperature data from 204 sites throughout the southern Appalachian region of the United States. Sites were located in randomly selected subwatersheds identified as capable of supporting populations of brook trout. Located at the downstream outlet of the subwatersheds, each site consisted of a logger placed underwater paired with a logger affixed to the bank or a tree. Stream and air temperatures were measured every 30 minutes using the remote logger system. Loggers were deployed from 2010 to 2015. The paired air and water temperatures were summarized into daily and weekly minimum, maximum, and mean values. Site information is included for the temperature data, including...
Categories: Data;
Tags: Appalachian Region,
Southeastern US,
brook trout,
climatologyMeteorologyAtmosphere,
environment,
Individual point estimates of stream density by juvenile salmonid species in two small tributaries to the Salmon River, Lake Ontario, New York were recorded. Enumeration of salmonid species was observed using a backpack electrofisher in order to identify fish species. Stream density estimates were calculated using stream width measurements taken at equally spaced transects. Comparisons of species densities between the two streams were analyzed to infer competition or segregation.
This Data Release provides brook trout abundance records for pool habitats within 2 streams in Shenandoah National Park (Staunton River and Paine Run). The data were collected with 3-pass backpack electrofishing conducted during baseflow conditions between 2012-2021. This dataset enables spatial analysis of brook trout population responses to drought conditions.
Categories: Data;
Tags: Aquatic Biology,
Ecology,
Ecology,
Shenandoah National Park, Virginia,
USGS Science Data Catalog (SDC),
The Interactive Catchment Explorer (ICE) is a dynamic visualization interface for exploring catchment characteristics and environmental model predictions. ICE was created for resource managers and researchers to explore complex, multivariate environmental datasets and model results, to identify spatial patterns related to ecological conditions, and to prioritize locations for restoration or further study. ICE incorporates stream temperature and brook trout occurrence models for headwaters of the Northeast, including projections of the potential effects of climate change. ICE is part of the Spatial Hydro-Ecological Decision System (SHEDS).
Categories: Data,
Web Site;
Tags: Application,
Climate Impacts,
Data,
Eastern Brook Trout,
LCC Network Science Catalog,
Invasion by nonnative brook trout (Salvelinus fontinalis) often results in replacement of cutthroat trout (Oncorhynchus clarki) in the inland western United States, but the underlying mechanisms are not well understood. We conducted a four-year removal experiment to test for population-level mechanisms (i.e., changes in recruitment, survival, emigration, and immigration) promoting invasion success of brook trout and causing decline of native Colorado River cutthroat trout (O. c. pleuriticus). We chose 700–1200 m segments of four small mountain streams where brook trout had recently invaded cutthroat trout populations, two each at mid elevation (2500–2700 m) and high elevation (3150–3250 m), and annually removed...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Colorado River cutthroat trout,
Ecological Applications,
Oncorhynchus clarkii pleuriticus,
Salvelinus,
brook trout,
This dataset includes microsatellite genotypes for 8,454 brook trout from 188 wild Midwestern populations and 26 hatchery strains of both Midwest and eastern (Atlantic seaboard) origin. Each individual was genotyped at either 5 or 7 loci.
Categories: Data;
Tags: Aquatic Biology,
Genetics,
Genetics,
Midwest,
USGS Science Data Catalog (SDC),
The model was acquired from Tyler Wagner (U.S. Geological Survey) (DeWeber & Wagner, 2014). Model outputs were composed of Ecological Drainage Units (EDUs), each of which was assigned a resulting mean predicted occurrence probability. The study region was determined by the Eastern Brook Trout Joint Venture (EBTJV) and represents the native range of the species on the East Coast. The polygons of interest were derived from the NHD plus dataset, with local catchments located at least 90% within the study region boundary. Presence data was taken from fish sampling records collected from state agencies and the Multistage Aquatic Resources Information System (MARIS), and these points were joined to the nearest stream...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Academics & scientific researchers,
Conservation NGOs,
Conservation Plan/Design/Framework,
Data,
Data.gov Appalachian Landscape Conservation Cooperative,
Survey data was integrated within a GIS by georeferencing observations to an existing national spatial framework (National Hydrography Dataset), which allows for broader transferability to watersheds shared with neighboring states, creating a seamless layer not limited by state boundaries. Addressing the management and conservation challenges for native fishes will require the ability to “data mine” the extensive existing information on distribution and abundance of species available from aquatic survey programs. Results from such syntheses can be used to assess the current conservation status of native fishes, quantify the extent of species invasions, and establish baseline distributions with which to evaluate...
Dams create barriers to fish migration and dispersal in drainage basins, and the removal of dams is often viewed as a means of increasing habitat availability and restoring migratory routes of several fish species. However, these barriers can also isolate and protect native taxa from aggressive downstream invaders.We examined fish community composition two years prior to and two years after the removal of a pair of low-head dams from Boulder Creek,Wisconsin, U.S.A. in 2003 to determine if removal of these potential barriers affected the resident population of native brook trout (Salvelinus fontinalis). Despite the presence of other taxa in the downstream reaches, and in other similar streams adjacent to the Boulder...
Categories: Publication;
Types: Citation;
Tags: Barrier,
Brook trout,
Brown trout fish,
Coldwater,
Colonization,
AbstractWe analyzed the associations of catchment-scale and riparian-scale environmental factors with occurrence of Brook Trout Salvelinus fontinalis in Connecticut headwater stream segments with catchment areas of <15 km2 . A hierarchical Bayesian approach was applied to a statewide stream survey data set, in which Brook Trout detection probability was incorporated and statistical significance of environmental covariates was based on 95% credible intervals of estimated coefficients that did not overlap a value of zero. Forested land at the catchment scale was the most important covariate affecting Brook Trout occurrence; i.e., heavily forested catchments with corresponding low levels of developed and impervious...
Naturalized populations of nonnative salmonid fishes have been implicated in the decline of many native aquatic organisms, including amphibians (Bradford 1989), invertebrates (Polhemus 1993), and fishes (Moyle et al. 1986). Potential mechanisms by which nonnative fishes may interact with native biota include predation, competition, parasite and disease transmission, and hybridization, which may operate directly or indirectly (see Taylor et al. 1984 for a general review). Nonnative salmonids are frequently implicated in declines of native salmonids in the western United States (Allendorf and Leary 1988, Young 1995, Duff 1996). For example, loss of threatened Lahontan cutthroat trout (Oncorhynchus clarki henshawi)...
Categories: Publication;
Types: Citation,
Journal Citation;
Tags: Lahontan cutthroat trout,
Oncorhynchus clarki henshawi,
Salvelinus fontinalis,
Western North American Naturalist,
brook trout,
These datasets are products of Phase II of the Appalachian Landscape Conservation Cooperative’s (LCC) landscape conservation design (LCD) created by Clemson University as part of the LCC-funded project, “Interactive Conservation Planning for the Appalachian LCC”. The Appalachian NatureScape Design incorporates and models newly developed data and information from all Appalachian LCC funded research projects as well as key existing datasets from partners to produce a series of maps that integrate aquatic connectivity with terrestrial significant habitats to guide conservation planning and decision making.Conservation Planning, a process of spatially identifying and prioritizing lands and waters important for functioning...
Categories: Data;
Tags: Academics & scientific researchers,
AppLCC,
Appalachian,
Conservation NGOs,
Conservation Plan/Design/Framework,
Fish community richness, density, and biomass for entire communities, Brook Trout, Rainbow Trout, and minnows, including site characteristics, and water chemistry (acid neutralizing capacity, pH, nitrate, sulfate, ammonia, calcium, and total aluminum) collected at least once and as many as 13 times at each of 52 stream sites during the same years that fish were inventoried, Great Smoky Mountains National Park, 1993-2014.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: Appalachian Mountains,
Appalachian Trail,
Aquatic Biology,
Blount County, Tennessee,
Blue Ridge Mountains,
The Ecology Section at the USGS Conte Laboratory has studied fish in the West Brook since 1997. The goal is to understand the strength and direction of drivers on fish growth, movement, reproduction and survival in the wild. We hope to provide a comprehensive understanding of fish population dynamics and ultimately individual fitness (natural selection and evolution) in the study area.
Community composition data from multi-pass electrofishing surveys for assessing fish populations in headwater streams of the Adirondack Mountains, New York, USA. Each row represents one individual fish. This spreadsheet contains 11 columns. The first 7 columns describe the data (year collected, local site ID, stream name, latitude, longitude, USGS site number, and electrofishing pass number) and the remaining 4 columns describe each individual fish (common name, scientific name, total length (mm) and weight (g)). These data support the following publication: Baldigo, B.P., Sporn, L.A., George, S.D., and Ball, Jacob, 2017. Efficacy of environmental DNA to detect and quantify Brook Trout Salvelinus fontinalis, populations...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service;
Tags: Adirondack State Park,
Adirondack streams,
Adirondacks,
Aquatic Biology,
DNA,
To effectively manage vital freshwater resources across large geographic areas, resource managers need the capacity to assess the status of aquatic species, their habitats, and the threats they face. This on-line decision support tool provides that capability for Eastern brook trout across the Chesapeake Bay watershed. The tool allows users to characterize current and and potential future aquatic conditions, target and prescribe restoration and conservation actions, set strategic priorities, evaluate management efforts, and support science-based sustainable management plans on behalf of brook trout and associated species. The tool is accompanied by a user-friendly summary report and a technical report providing...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Application,
Chesapeake Bay,
Data,
Eastern Brook Trout,
LCC Network Science Catalog,
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