Results 51 to 60 of about 965 (180)

Size-conditional smolting and the response of Carmel River steelhead to two decades of conservation efforts.

PLoS ONE, 2017
Threshold effects are common in ecosystems and can generate counterintuitive outcomes in management interventions. A threshold effect proposed for steelhead trout (Oncorhynchus mykiss) is size-conditional smolting and marine survival.
Juan Lopez Arriaza, David A Boughton, Kevan Urquhart, Marc Mangel   +3 more
doaj   +1 more source

Health of Wild Atlantic Salmon (Salmo salar) Smolts Along Coastal Migratory Routes in Newfoundland, Canada With and Without Salmonid Aquaculture as Assessed Using Sentinel Cages

Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.
ABSTRACT Declines in wild Atlantic salmon populations in the North Atlantic with migratory routes adjacent to commercial salmonid aquaculture operations in coastal marine environments have raised concerns about the potential for direct or indirect effects this industry may have on local wild populations.
Mark Young, Travis E. Van Leeuwen, Kimberly Marshall, Steven Duffy, Matthew Grandy, Jesse Bisson, Terry Bungay, Shannon Cross, Art Walsh, Donald Keefe, Ross Hinks, J. Brian Dempson, Mark D. Fast, Ian A. Fleming, Harry M. Murray   +14 more
wiley   +1 more source

No Groundwater, No Fish: The Critical Role of Groundwater in Supporting Non‐Glacial, Salmon‐Bearing Rivers in South‐Central Alaska

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 2, April 2026.
ABSTRACT Groundwater discharge plays an important role in the hydrologic and ecologic functioning of rivers including sustaining streamflow and related habitat year‐round. Simultaneously, groundwater supports the increasing demands of people as the global population continues to grow.
Tyelyn Brigino, Kai Rains, Edgar Guerrón‐Orejuela, Jacob Argueta, Syverine Bentz, Coowe Walker, Mark Rains   +6 more
wiley   +1 more source

Planning, Implementing, and Evaluating Stage 0 and Valley Bottom Restoration Projects: A Review With Lessons From the Grande Ronde Basin, USA

WIREs Water, Volume 13, Issue 2, March/April 2026.
Successful valley bottom restoration requires an understanding of current and historical conditions determining whether a reach can currently support a multi‐thread or meandering channel, an understanding of reference conditions to assist with design, clear objectives to evaluate design alternatives, and post‐project monitoring of success using a ...
Philip Roni, Meghan J. Camp, Reid Camp, Tyler Rockhill, Michael Briggs, Sean Welch, Jesse Steele   +6 more
wiley   +1 more source

Early life exploration behaviour and life‐history loci are colocalized in an adaptive genomic hotspot in Atlantic salmon

Journal of Animal Ecology, Volume 95, Issue 3, Page 418-429, March 2026.
The genetic architecture of phenotypic correlations offers insights into how natural selection operates in the wild. Two functional phenotypes in Atlantic salmon, early life exploration and age‐at‐maturity, are correlated at an adaptive genomic hotspot, but through distinct genetic markers (SNPs), ruling out causality.
Tutku Aykanat, Jaakko Erkinaro
wiley   +1 more source

Epigenetics in Captivity: Restoring Wild Phenotypes in Captive‐Reared Salmonids

Evolutionary Applications, Volume 19, Issue 3, March 2026.
ABSTRACT Captive rearing is a common practice for the stocking, conservation, and supplementation of fish species worldwide, but captive‐reared fish can exhibit altered phenotypes leading to reduced fitness in nature compared to wild conspecifics. In salmonids, certain studies have found limited genetic differentiation between wild and captive‐reared ...
Tia Attfield, Andrew Honsey, Amanda Ackiss, Andreas Luek, Brian Meagher, Hayley Nuetzel, Ilana Koch, Julien April, Kristy Wakeling, Kyle W. Wellband, Raphaël Bouchard, Sarah J. Lehnert, Shawn Narum, Timothy M. Healy, Trevor E. Pitcher, Clare J. Venney   +15 more
wiley   +1 more source

Transcriptome analysis of the brain provides insights into the regulatory mechanism for Coilia nasus migration

BMC Genomics, 2020
Background Coilia nasus (C. nasus) is an important anadromous fish species that resides in the Yangtze River of China, and has high ecological and economical value.
Meiyao Wang, Gangchun Xu, Yongkai Tang, Pao Xu   +3 more
doaj   +1 more source

Highly and Lowly Domesticated Endangered Fish From a Conservation Hatchery Diverge in Their Thermal Physiology, Transcriptome, and Methylome

Evolutionary Applications, Volume 19, Issue 3, March 2026.
ABSTRACT Conservation hatcheries aim to produce fish for supplementation of wild populations, but hatchery environments may drive phenotypic divergence from wild fish. These diverged traits may have reduced fitness in the wild, which could compromise wild population sustainability and evolutionary potential, such as in response to climate change. Delta
Joanna S. Griffiths, Amanda J. Finger, Melinda R. Baerwald, Md Moshiur Rahman, Tien‐Chieh Hung, Nann A. Fangue, Andrew Whitehead   +6 more
wiley   +1 more source

Behavior analysis of juvenile steelhead trout under blue and red light color conditions based on multiple object tracking

Frontiers in Marine Science
IntroductionThe lighting environment significantly influences fish behavior. This study explores the impact of diverse lighting conditions on the behavior of steelhead trout (Oncorhynchus mykiss) to illuminate the mechanisms underlying their behavioral ...
Ziyu Li, Ziyu Li, Ziyu Li, Ziyu Li, Xueweijie Chen, Jinze Huang, Jinze Huang, Jinze Huang, Jinze Huang, Dong An, Dong An, Dong An, Dong An, Yangen Zhou   +13 more
doaj   +1 more source

Selection at a genomic region of major effect is responsible for evolution of complex life histories in anadromous steelhead

BMC Evolutionary Biology, 2018
Background Disparity in the timing of biological events occurs across a variety of systems, yet the understanding of genetic basis underlying diverse phenologies remains limited.
Steven J. Micheletti, Jon E. Hess, Joseph S. Zendt, Shawn R. Narum   +3 more
doaj   +1 more source