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Keyword: fish

Understanding environmental DNA detection probabilities: A case study using a stream-dwelling char Salvelinus fontinalis

Publications Posted on: January 12, 2016
Environmental DNA sampling (eDNA) has emerged as a powerful tool for detecting aquatic animals. Previous research suggests that eDNA methods are substantially more sensitive than traditional sampling. However, the factors influencing eDNA detection and the resulting sampling costs are still not well understood.

Cold Water Can be Used as a Climate Shield to Protect Native Aquatic Species

Lab Notes Posted on: December 09, 2015
Cold Water Can be Used as a Climate Shield to Protect Native Aquatic Species Posted by Dan Isaak and Jennifer Hayes, U.S. Forest Service Rocky Mountain Research Station, on March 4, 2015

A thermal map for all Washington streams

Documents and Media Posted on: September 30, 2015
Thermal map of all Washington streams, assembled by the NorWest Project. Document Type: Other Documents

A thermal map for all Oregon streams

Documents and Media Posted on: September 30, 2015
This is a thermal map of all streams in Oregon, assembled by the NorWest Project. Document Type: Other Documents

Data product for "Anticipated climate warming effects on Bull Trout habitats and populations across the Interior Columbia River Basin"

Datasets Posted on: August 27, 2015
This archive contains the data necessary to complete the general processing steps as outlined in the associated publication, Rieman et al. (2007).

Wildlife population and harvest data for Forest Service 2010 RPA assessment

Datasets Posted on: August 27, 2015
The data documents trends in the populations and harvests of wildlife species across the United States, from 1955 to 2010, as one set of resource condition indicators as required by the Forest and Rangeland Renewable Resources Planning Act (RPA) of 1974. Data from a variety of sources were used to document recent historical trends in big game, small game, migratory game birds, furbearers, nongame, and imperiled species.

Environmental DNA particle size distribution from Brook Trout (Salvelinus fontinalis)

Publications Posted on: July 16, 2015
Environmental DNA (eDNA) sampling has become a widespread approach for detecting aquatic animals with high potential for improving conservation biology. However, little research has been done to determine the size of particles targeted by eDNA surveys. In this study, we conduct particle distribution analysis of eDNA from a captive Brook Trout (Salvelinus fontinalis) in a flow-through mesocosm.

Visual observation of fishes and aquatic habitat [Chapter 17]

Publications Posted on: May 15, 2015
Whether accomplished above the water surface or performed underwater by snorkel, scuba, or hookah divers or remotely operated vehicles (ROVs); direct observation techniques are among the most effective means for obtaining accurate and often unique information on aquatic organisms in their natural surroundings.

DNA barcoding at riverscape scales

Science Spotlights Posted on: April 29, 2015
Research conducted by RMRS scientists demonstrates how intensive sampling efforts across a large geographical scale can influence identification of taxonomic groups among the fishes of the genus Cottus in the northern Rocky Mountains. Researchers used specific sequences from mitochondrial DNA regions and phylogenetic analyses techniques as indicators of biodiversity and to identify unique species.

NorWeST: a regional stream temperature database and modeled climate scenarios

Documents and Media Posted on: January 23, 2015
Climate change is warming aquatic ecosystems and will have profound consequences. Effective conservation of aquatic resources will require unprecedented levels of interagency coordination.  In addition, it will require the development of datasets and models for accurate downscaling of climate change effects to important habitat parameters and species distributions at local scales.Document Type: Briefing Papers