Results 31 to 40 of about 3,299 (139)

How Tough a Passage? Nonnative Fish Entrainment Survivability at a Major Dam in the Western USA

River Research and Applications, EarlyView.
ABSTRACT The Colorado River downstream of Glen Canyon Dam (GCD) in the southwest USA demonstrates anthropogenic modification including altered flow and temperature regimes and established nonnative species in upstream reservoirs. Water overallocation and megadrought are contributing to new potential invasion pathways for nonnative fishes through dam ...
Barrett Friesen, Casey A. Pennock, Phaedra Budy   +2 more
wiley   +1 more source

Too Hot, Too Cold, Just Right: Thermal Modulating Capacity of Different Sources of Groundwater Discharge to Salmon‐Bearing Streams

River Research and Applications, EarlyView.
ABSTRACT Groundwater discharge plays a key role in maintaining habitat suitability for cold‐water fish by generating streamflow and modulating temperatures. However, the thermal influence depends on groundwater source depth and how far groundwater travels from the point of discharge to a receiving stream.
Tyelyn Brigino, Kai C. Rains, Patricia Spellman, Elizabeth Wilson, Syverine Bentz, Lauren Sutton, Mark C. Rains   +6 more
wiley   +1 more source

Biotransport of persistent organic pollutants in the southern Hemisphere by invasive Chinook salmon (Oncorhynchus tshawytscha) in the rivers of northern Chilean Patagonia, a UNESCO biosphere reserve

Environment International, 2020
Biotransport is often associated with migration patterns of species, including large, anadromous salmonids. Several studies have reported biotransport of persistent organic pollutants in the Northern Hemisphere, but there is no published information on ...
Mónica Montory, Evelyn Habit, Pilar Fernandez, Joan O. Grimalt, Alan S. Kolok, Ricardo O. Barra, Javier Ferrer   +6 more
doaj   +1 more source

Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon

Conservation Biology, EarlyView.
Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch, Joseph H. Anderson, Eric M. Beamer, Joshua W. Chamberlin, Christopher Ellings, Correigh M. Greene, Sayre Hodgson, Michael T. LeMoine, W. Todd Zackey   +8 more
wiley   +1 more source

Characterizing juvenile salmon predation risk during early marine residence.

PLoS ONE, 2021
Predation mortality can influence the distribution and abundance of fish populations. While predation is often assessed using direct observations of prey consumption, potential predation can be predicted from co-occurring predator and prey densities ...
Elizabeth M Phillips, John K Horne, Jeannette E Zamon   +2 more
doaj   +1 more source

Ecological considerations for reintroducing Chinook salmon upstream of Shasta Dam

Conservation Science and Practice, EarlyView.
In this assessment, we reviewed existing literature to assess the ecological risks, benefits, and uncertainties associated with reintroducing Chinook salmon into the McCloud River, a tributary of the Sacramento River, California. We identified considerations related to population viability, disease, and species interactions.
Claire E. Couch, Bailey A. Morgan, Carl Ostberg, BayLee R. Laufer, Jan Lovy, Rachelle C. Johnson, Jill M. Hardiman, Tobias J. Kock   +7 more
wiley   +1 more source

Are salmon-derived nutrients being incorporated in food webs of invaded streams? Evidence from southern Chile

Knowledge and Management of Aquatic Ecosystems, 2012
Using stable isotope analyses of N and C we present preliminary evidence of marine-derived nutrients from introduced Chinook salmon (Oncorhynchus tshawytscha Walbaum) in stream food webs of Laguna Los Patos, NW Patagonia.
Arismendi I., Soto D.
doaj   +1 more source

Warming Ocean Conditions Relate to Increased Trophic Requirements of Threatened and Endangered Salmon.

PLoS ONE, 2015
The trophic habits, size and condition of yearling Chinook salmon (Oncorhynchus tshawytscha) caught early in their marine residence were examined during 19 survey years (1981-1985; 1998-2011). Juvenile salmon consumed distinct highly piscivorous diets in
Elizabeth A Daly, Richard D Brodeur
doaj   +1 more source

Behavioural Diversity of Fishes: Concepts, Drivers and Its Role in Conservation and Management

Fish and Fisheries, EarlyView.
ABSTRACT Human activity has altered nearly all ecosystems on Earth, contributing to substantial biodiversity loss across taxonomic, genetic and functional dimensions, from the intraspecific to the ecosystem scale. Yet some components of biodiversity remain hidden or underappreciated, including behavioural diversity.
Marie Prchalová, Robert Arlinghaus, Samuel Westrelin, Ivan Jarić, Michael G. Bertram, Josep Alós, Henrik Baktoft, Jack A. Brand, Tomas Brodin, Adolfo Cordero‐Rivera, Carlina Feldmann, Ryo Futamura, Stefan Hont, Pascal Klamser, Cecilie Iden Nilsen, Johann Mourier, Karl Øystein Gjelland, Esben Moland Olsen, Polona Pengal, Rubén Rabaneda‐Bueno, Milan Říha, Theresa Rueger, Holger Schielzeth, Marco Signaroli, Marija Smederevac‐Lalić, Christopher T. Monk   +25 more
wiley   +1 more source

Genomic region associated with run timing has similar haplotypes and phenotypic effects across three lineages of Chinook salmon

Evolutionary Applications, 2021
Conserving life‐history variation is a stated goal of many management programs, but the most effective means by which to accomplish this are often far from clear.
Stuart C. Willis, Jon E. Hess, Jeff K. Fryer, John M. Whiteaker, Shawn R. Narum   +4 more
doaj   +1 more source