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Keyword: fish

Using expressed behaviour of coho salmon (Oncorhynchus kisutch) to evaluate the vulnerability of upriver migrants under future hydrological regimes: Management implications and conservation planning

Publications Posted on: July 29, 2019
1. Globally, river systems have been extensively modified through alterations in riverscapes and flow regimes, reducing their capacity to absorb geophysical and environmental changes.

The eDNAtlas project: A national map of aquatic biodiversity

Science Spotlights Posted on: June 07, 2018
The National Genomics Center for Wildlife and Fish Conservation pioneered development of eDNA sampling of aquatic environments at their laboratory in Missoula, MT. The Center has partnered with dozens of National Forests, as well as other state, federal, tribal, and private natural resource organizations to assist in the collection and processing of eDNA samples. Thousands of eDNA samples are collected annually and constitute a rapidly growing biodiversity archive that provides precise information about native and non-native species distributions, temporal trends in those distributions, and the efficacy of species and habitat restoration and conservation efforts. eDNA sampling provides a low-cost & sensitive method for determining which species occur in water bodies. Rapid adoption of eDNA sampling by many natural resource agencies led to an exponential increase in data and the need for an open-access database. The website and open-access database were launched in June 2018 with approximately 6,000 samples and is updated semi-annually with newly processed samples.

The importance of sound methodology in environmental DNA sampling

Publications Posted on: May 21, 2018
Environmental DNA (eDNA) sampling - which enables inferences of species’ presence from genetic material in the environment - is a powerful tool for sampling rare fishes. Numerous studies have demonstrated that eDNA sampling generally provides greater probabilities of detection than traditional techniques (e.g., Thomsen et al. 2012; McKelvey et al. 2016; Valentini et al. 2016; Wilcox et al. 2016). In contrast, Ulibarri et al.

Global warming of salmon and trout rivers in the northwestern U.S.: Road to ruin or path through purgatory?

FS News Posted on: May 10, 2018
What will the future hold for western river systems and the cold-water species that depend on them? To answer this question, scientists at the USDA Forest Service Rocky Mountain Research Station compiled temperature records from nearly 400 monitoring sites along large rivers in the northwestern United States.

NorWeST stream temperature data summaries for the western U.S.

Datasets Posted on: March 15, 2018
NorWeST is an interagency stream temperature database and model for the western United States containing data from over 20,000 unique stream locations. Temperature observations were solicited from state, federal, tribal, private, and municipal resource organizations and processed using a custom cleaning script developed by Gwynne Chandler. Summaries of daily, weekly, and monthly means, minima, and maxima are provided for observation years.

NorWeST modeled summer stream temperature scenarios for the western U.S.

Datasets Posted on: March 15, 2018
NorWeST summer stream temperature scenarios were developed for all rivers and streams in the western U.S. from the > 20,000 stream sites in the NorWeST database where mean August stream temperatures were recorded.

Species occurrence data from the Range-Wide Bull Trout eDNA Project

Datasets Posted on: March 15, 2018
The bull trout is an ESA-listed species with a historical range that encompasses many waters across the Northwest. Though once abundant, bull trout have declined in many locations and are at risk from a changing climate, nonnative species, and habitat degradation.

The aquatic eDNAtlas project

Projects Posted on: February 08, 2018
The website provides: 1) A large list of supporting science behind eDNA sampling. 2) The recommended field protocol for eDNA sampling and the equipment loan program administered by the NGC. 3) A systematically-spaced sampling grid for all flowing waters of the U.S. in a downloadable format that includes unique database identifiers and geographic coordinates for all sampling sites. Available for download in an Geodatabase or available by ArcGIS Online map. This sampling grid can be used to determine your field collection sites to contribute. 4) The lab results of eDNA sampling at those sites where project partners have agreed to share data.

eDNA sampling: Not just for fisheries biologists anymore

Publications Posted on: January 03, 2018
The use of eDNA sampling for fish and amphibian monitoring is widely known. Fisheries biologists, in particular, have embraced the eDNA revolution. Over 150 papers in the published literature used sampled water for the detection of everything from minnows (Rhinichthys cobitis and Meda fulgida; Dysthe et al. 2017) to whale sharks (Rhincodon typus; Sigsgaard et al.

Climate change, fish, and aquatic habitat in the Blue Mountains [Chapter 5]

Publications Posted on: April 27, 2017
National Forest System lands in the Blue Mountains region support a diversity of important native aquatic species that will be affected by climate change. As part of the Blue Mountains Adaptation Partnership, four of these species (spring Chinook salmon (Oncorhynchus tshawytscha Walbaum in Artedi), bull trout (Salvelinus confluentus Suckley), summer steelhead (O. mykiss Walbaum), and interior redband trout (O. m.

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