Results 41 to 50 of about 26,140 (210)

The Transboundary Reach of the Columbia River: Cottonwood Colonization Followed Flow Moderation From the Columbia River Treaty Dams

River Research and Applications, EarlyView.
ABSTRACT The Columbia river provides the largest Pacific outflow in the Western Hemisphere and the greatest hydropower production of any North American river system. For hydropower generation and flood risk management, four massive water storage reservoirs followed the Columbia River Treaty between Canada and the United States, with three Canadian dams,
Colleen A. Phelan, Greg Utzig, Stewart B. Rood   +2 more
wiley   +1 more source

A Tool for Prioritizing Gravel Augmentation Reaches for Sediment Starved Rivers

River Research and Applications, EarlyView.
ABSTRACT Gravel augmentation is a widely used restoration technique used to improve habitat below dams, including salmonids spawning habitat. However, gravel augmentation can be cost‐prohibitive, and it is often unclear which stream segments have the highest potential to benefit spawning salmonids.
Patricia J. Wohner, Peter A. Samarin, James T. Peterson   +2 more
wiley   +1 more source

Distribution and Abundance of Juvenile Salmonids off Oregon and Washington, 1981-1985 [PDF]

, 1990
This report is a summary of the results of 883 purse seine sets made for juvenile salmonids during 15 cruises off the coasts of Oregon and Washington during the springs and summers of 1981-1985.
Fisher, Joseph P., Pearch, William G.
core  

From snapshots to continuous estimates: Augmenting citizen science with computer vision for fish monitoring

Remote Sensing in Ecology and Conservation, EarlyView.
This study presents an end‐to‐end computer‐vision pipeline for monitoring fish migration using underwater video. We integrate field camera deployment, annotation, model training and automated in‐season counting to generate continuous, high‐resolution data on river herring spawning migration.
Zhongqi Chen, Timm Haucke, Sara Beery, Keven Bennett, Austin Powell, Lydia Zuehsow, Robert Vincent, Linda Deegan   +7 more
wiley   +1 more source

Effects of temperature, salinity and feeding frequency on growth and mortality of twaite shad (Alosa fallax) larvae

Knowledge and Management of Aquatic Ecosystems, 2014
Available knowledge on the ecological requirements of the twaite shad Alosa fallax larvae is limited, restricting the development of effective management and conservation measures for this anadromous clupeid in European rivers. In this study, the effects
Navarro T., Carrapato C., Ribeiro F.
doaj   +1 more source

Restoration‐mediated secondary contact leads to introgression of alewife ecotypes separated by a colonial‐era dam

Evolutionary Applications, 2020
Secondary contact may have important implications for ecological and evolutionary processes; however, few studies have tracked the outcomes of secondary contact from its onset in natural ecosystems.
Kerry Reid, John Carlos Garza, Steven R. Gephard, Adalgisa Caccone, David M. Post, Eric P. Palkovacs   +5 more
doaj   +1 more source

Lifelong divergence of growth patterns in Arctic charr life history strategies: implications for sustainable fisheries in a changing climate

Arctic Science, 2021
Arctic charr (Salvelinus alpinus Linnaeus, 1758) are phenotypically variable with multiple life history strategies including anadromous and freshwater resident individuals.
Gabrielle Grenier, Ross F. Tallman
doaj   +1 more source

Integrating Sr isotopes, microchemistry, and genetics to reconstruct Salmonidae species and life history

Archaeometry, EarlyView.
Abstract Recent approaches to fisheries research emphasize the importance of the coproduction of knowledge in building resilient and culturally mindful fisheries management frameworks. Despite widespread recognition of the need for Indigenous knowledge and historical reference points as baseline data, archaeological data are rarely included in ...
Ross Salerno, Remi Murdoch, Joanna Elmore, Taylor Wilcox, Jens Hegg, Catherine S. Austin, Michael LeMoine, Jade Luckhurst, Alexandra K. Fraik, Molly Carney   +9 more
wiley   +1 more source

A Review of a Decade of Anadromous Salmonid Hatchery (And Stocking) Research: Insights for Policy, Management and a Changing Climate

Fish and Fisheries, EarlyView.
ABSTRACT Hatcheries and stocking programmes have long been a cornerstone of fisheries management, seen as tools for fisheries enhancement and/or conservation of threatened populations. Their use draws controversy, however, from a growing body of research over the last 50 years suggesting that stocking can have negative consequences for wild stocks, and
Hannah L. Harrison, Øystein Aas, Valerie Berseth, Tom Chance, Katherine L. Dalby, Shelley Denny, Michael T. Fabiano, Norm Johnson, Tor Kitching, Lian E. Kwong, Polina Orlov, Adrian P. Spidle, Alan Walker, Kyle Wellband, Lorna Wilson, Kurt Samways   +15 more
wiley   +1 more source

Comparative transcriptomics of anadromous and resident brook charr Salvelinus fontinalis before their first salt water transition

Current Zoology, 2012
Most salmonid taxa have an anadromous life history strategy, whereby fish migrate to saltwater habitats for a growth period before returning to freshwater habitats for spawning.
Marylène BOULET, Éric NORMANDEAU, Bérénice BOUGAS, Céline AUDET,Louis BERNATCHEZ
doaj