Filters: Tags: Bull Trout (X)
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303(d) listed waterways was downloaded from the EPA website. Areas listed as 303(d) were extracted and compared to the overall amount of non 303(d) waterways to establish a percentage of waterways that were 303(d).
Streams are classified as perennial (flowing uninterrupted, year-round) or intermittent (flowing part of the year) or ephemeral (flowing only during rainfall events). The classifications of “streamflow permanence” were primarily established in the middle 20th century and are often outdated and inaccurate today if they were not adjusted for changes in land use, wildfires, or climate.Understanding where streams are perennial is important for a variety of reasons. For example, perennial streams receive special regulatory protections under a variety of statutes, and provide important habitat for fish, wildlife, and other species. To predict the likelihood that streams are perennial, we compiled nearly 25,000 observations...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2016,
CASC,
Completed,
Data Visualization & Tools,
Data Visualization & Tools,
This project will support the design and development of a large-scale aquatics monitoring program across 1.5 million acres of the Crown of the Continent, as part of a 10-year, landscape-level restoration project established and funded by the U.S. Forest Service in 2010. The Forest Service has directed each of ten Cooperative Forest Landscape Restoration Program projects to develop and implement a large-scale monitoring program to inventory current resource conditions and facilitate the short- and long-term evaluation of the effectiveness of restoration projects to inform future management strategies and actions: the work proposed here would address significant challenges associated with maintaining or improving...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Bull Trout,
Climate Change,
Completed,
Cutthroat Trout,
Datasets/Database,
We propose to work with the Rocky Mountain Partnership Forum to expand upon the successful approach applied in the first two years of this project to help managers incorporate climate change science into their natural resource management decisions for a new resource of interest that will be chosen by the Rocky Mountain Partner Forum members. This project will be implemented through the Rocky Mountain Partner Forum to share information with and among partners about emerging climate science and strategies for integrating climate change into natural resource management decisions in the region. We will also support the Rocky Mountain Partner Forum Leadership Team as it seeks to formalize the Forum and set directions...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Alberta,
Aquatic Connectivity,
British Columbia,
Bull Trout,
Climate Change,
These data were intitially developed by ODFW's Bull Trout coordinator and are based on data collected through 2000 by state, federal and tribal fishery biologists. Those data represent areas of documented Bull Trout presence. Most surveys captured by the initial dataset were completed during the summer and fall months. Wintertime distributions could vary significantly from summer/fall locations, but very little data exist statewide to portray an accurate picture of winter distribution for Bull Trout. These coverages are not considered complete as we continue to look for bull trout in potential habitat across their range and we likewise lack extensive information on winter habitat. During the 1:24,000 Fish Habitat...
These data identify (in general) the areas where critical habitat for the bull trout (Salvelinus confluentus) occur.
Delineation of Bull Trout Restoration/Conservation Areas for the Montana Bull Trout Scientific Committee. The delineation of these areas was largely based on the fragmentation of historically connected systems. Loss of interconnectivity results from migration barriers or other habitat changes, such as dams, altered thermal regimes or stream dewatering. Each of the twelve restoration/conservation areas presently contains core areas and nodal habitats for bull trout.
Using temperature range derived in earlier datasets for the range of bull trout in the ecoregion, the following assumptions are made of a future climate scenario.Suitable is Marginal is current Mean July Air Temp + 1 Standard Deviation - Max July Air Temp (32.4 - 33.9*C)Unsuitable is > current Max July Air Temp (> 33.9*C)Results are rolled up to an analysis unit.
Winter precipitation was extracted from the PRISM 1980-2010 precipitation dataset for the months of November through March. The extent of the bull trout range was used to mask the analysis. Using Zonal Statistics the mean for the November - March timeframe was calculated. Binning the data into 10 classes, the lowest class was determined to be not at risk for winter flooding (based on Haak et al. 2010 methodology).
The number of fish barriers within the analysis unit was analyzed for the bull trout range within the ecoregion.
The bull trout is an ESA-listed species that relies on cold stream environments across the Northwest and is expected to decline with climate change. Resource managers are charged with maintaining bull trout across their range, but monitoring this species is difficult and many populations have rarely or never been sampled. To reduce this uncertainty (and regulatory gridlock), we propose to coordinate a crowd-sourced field assessment of the distribution of bull trout in the U.S. by using inexpensive, reliable environmental DNA (eDNA) sampling. Samples collected by this multi-partner effort can be used to evaluate many other species (e.g., a biodiversity assessment) with no additional field costs and can serve as a...
Categories: Data,
Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Applications and Tools,
Aquatic Connectivity,
British Columbia,
Bull Trout,
California,
The current distribution of bull trout populations in the lower 48 states outside of SE Alaska and Canada is highly fragmented, occupying
only
portions
of
the
historically
occupied
watersheds.
In
non‐coastal
areas,
they
typically
remain
only
in
the
coldest
tributaries.
Like
most
native
salmonids
in
the
west,
bull trout
distribution,
abundance,
and
habitat
quality have
declined
range‐wide.
For
example,
in
Idaho,
Nevada
and
Montana,
about
one‐third
of
the
currently
occupied
habitat
supports populations at or near habitat capacity, while two-thirds support populations significantly below potential.
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Downloadable,
Map Service;
Tags: bull trout,
western native trout initiative,
wnti
A warming climate could profoundly affect the distribution and abundance of many fishes. Bull trout (Salvelinus confluentus) may be especially vulnerable to climate change given that spawning and early rearing are constrained by cold water temperatures creating a patchwork of natal headwater habitats across river networks. Because the size and connectivity of patches also appear to influence the persistence of local populations, climate warming could lead to increasing fragmentation of remaining habitats and accelerated decline of this species. We modeled the relationships between (1) the lower elevation limits of small bull trout and mean annual air temperature and (2) latitude and longitude across the species...
Winter flooding risk was measured by using the mean January - March temperature from PRISM 1980-2010 dataset. The future temperature was increased 3 degress C (based on Haak et al. 2010 methodology). Mean current and future temperatures were extracted for Bull trout analysis units. Temperatures below -1 degrees C were considered snow dominant, -1 to +1 degrees C were considered transient and greater than 1 degree were considered rain dominant.For winter flood risk:Stays Snow Dominant = Low RiskSnow Dominant to Transient = Moderate RiskSnow Dominant to Rain Dominant = High RiskStays Transient = Low RiskTransient - Rain Dominant = Moderate RiskStays Rain Dominant = Low Risk
This dataset is a record of fish distribution and activity for BULL TROUT contained in the StreamNet database. This feature class was created based on linear event data extracted from the StreamNet database on February 2, 2009. Distribution is based upon the best professional judgement of local fish biologists, in the Pacific Northwest Region (Oregon, Washington, and Idaho). These data were collected by biologists at the state fish & wildlife agencies of Washington (WDFW), Oregon (ODFW) and Idaho (IDFG). Data were then compiled by StreamNet staff into paper maps or event tables at the state level. These event tables were submitted to the StreamNet regional staff at Pacific States Marine Fisheries Commision (PSMFC)...
The bull trout, listed as threatened under the Endangered Species Act, is well adapted to the cold waters of the Northwest. Recent changes in climate have caused winter flooding and warmer summer water temperatures in the region, reducing the cold-water habitats that bull trout depend on. The southernmost bull trout populations, found in Oregon, Washington, Idaho, Montana, and Nevada, are currently restricted to small reserves where the coldest waters still exist. These shrinking habitats have created a severed environment being further split by dams, poor water quality, and invasive species. The goal of this project was to determine how these factors threaten the species regionally by using predictions of stream...
Categories: Project;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: 2011,
CASC,
Completed,
Data Visualization & Tools,
Data Visualization & Tools,
The FSim burn probability was used to determine the burn probability of the bull trout range in the ecoregion. This layer was used to examine wildfire risk to areas within the bull trout range.
These data identify (in general) the areas where critical habitat for the bull trout (Salvelinus confluentus) occur.
Using the results of the flood risk due to change in winter temperature change, areas with low winter precipitation are mosaiced onto the flood risk to show areas that have the potential for flood risk and areas with low precipitation that are precluded from consideration for flood risk.
Nov 26, 2013 presentation by Seth Wenger, Trout Unlimited; w/ Dan Isaak, USFS Rocky Mountain Research Station & Jason Dunham, USGS, Forest & Rangeland Ecosystem Science Cntr. The presentation explains an analytic approach that calculates a full distribution of possible outcomes for a species; and permits ready graphical display of uncertainty for individual locations and of total habitat. This is based on the journal publication, "Probabilistic accounting of uncertainty in forecasts of species distributions under climate change," and a bull trout suitable habitat analysis is used to illustrate methods. See: Global Change Biology, DOI:10.1111/gcb.12294 Sponsored by the Northwest Climate Science Center and the Pacific...
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