Results 61 to 70 of about 4,700 (243)

Juvenile Steelhead & Chinook Production and Smolt Survival

, 2020
Chapter Four: Juvenile Steelhead & Chinook Production and Smolt Survival The Umatilla Basin Natural Production Monitoring and Evaluation Project 2019 Annual Progress ...
Sheoships, Matthew, Caldwell, Lucius, Flaherty, Ryan, Bingham, Daniel, Belcher, Lindsey, Simonis, Juniper L., Contor, Craig R., Bonifer, Jerimiah   +7 more
core   +1 more source

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

Journal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source

An extensive common‐garden study with domesticated and wild Atlantic salmon in the wild reveals impact on smolt production and shifts in fitness traits

Evolutionary Applications, 2019
Interactions between domesticated escapees and wild conspecifics represent a threat to the genetic integrity and fitness of native populations. For Atlantic salmon, the recurrent presence of large numbers of domesticated escapees in the wild makes it ...
Øystein Skaala, Francois Besnier, Reidar Borgstrøm, BjørnTorgeir Barlaup, Anne Grete Sørvik, Eirik Normann, Britt Iren Østebø, Michael Møller Hansen, Kevin Alan Glover   +8 more
doaj   +1 more source

Impact of variable physical conditions and future increased aquaculture production on lice infestation pressure and its sustainability in Norway

Aquaculture Environment Interactions, 2020
Salmon lice infestation is a challenge for wild post-smolt salmon during migration from their natal river to the sea in several regions of Norway.
MS Myksvoll, AD Sandvik, IA Johnsen, J Skarðhamar, J Albretsen   +4 more
doaj   +1 more source

Quantitative insights into the spatio‐temporal variation of Atlantic salmon (Salmo salar) biomass in a river catchment using eDNA metabarcoding

Journal of Fish Biology, EarlyView.
Abstract Effective species conservation and management requires comprehensive biomonitoring, enhanced by combining traditional and newer methodologies, such as environmental DNA (eDNA) analyses. A seasonal pulse of spawning adult Atlantic salmon (Salmo salar) was detected by normalised eDNA 12S reads from metabarcoding, which facilitated estimation of ...
William Bernard Perry, Nigel Milner, Ifan Bryn Jâms, Mark de Bruyn, Steve J. Ormerod, Kristy Deiner, Holly M. Bik, Gary Carvalho, John Colbourne, Bernard Jack Cosby, Isabelle Durance, Simon Creer   +11 more
wiley   +1 more source

Scenario 1 –Average smolt fork length.

, 2015
Statistical measures (model) of smolt fork lengths (mm) at the beginning and end of the smolt sub-phase. Size data are broken down per life phases and age groups.
Marco Castellani (797635), Mikko Heino (797636), Terje Svåsand (797637), Hitoshi Araki (32382), Kevin A. Glover (142038), John Gilbey (497744)   +5 more
core   +1 more source

Reproductive parameters of wild and hatchery‐reared sea trout (Salmo trutta m. trutta L.) females from the Łeba River (southern Baltic Sea)

Journal of Fish Biology, EarlyView.
Abstract Sea trout Salmo trutta m. trutta L. has high socioeconomic and ecological importance in the Atlantic region; therefore, stocking hatchery‐reared fish is widely practiced for stock enhancement and recovery of wild populations. In this study, fecundity of wild and stocked hatchery‐reared sea trout sampled from the Łeba River (southern Baltic Sea
Adam M. Lejk, Piotr Hliwa
wiley   +1 more source

Babine Lake sockeye smolt abundance over time.

, 2014
Legend: Abundance of late-migrant (primarily channel-enhanced) and early-migrant (primarily wild) sockeye salmon smolts leaving Babine Lake as enumerated by smolt trap by sockeye brood year. Note: the smolt trap ceased to operate in 2002 (2000 brood year)
Brendan M. Connors (555057), Michael H. H. Price (356366)   +1 more
core   +1 more source

Aerobic scope is sustained through a heatwave in juvenile Atlantic salmon (Salmo salar)

Journal of Fish Biology, EarlyView.
Abstract Aquatic ectotherms are vulnerable to heatwave‐induced physiological stress, which arises from increased energy demands and reduced dissolved oxygen content in warmer waters. Understanding thermal physiology is critical for predicting how commercially and ecologically important populations could be affected by the increasing risk of rising ...
Lucy Cotgrove, Sergey Morozov, Miika Raitakivi, Evan Sala, Jenni M. Prokkola   +4 more
wiley   +1 more source

Verdens første smolt-rev skal hjælpe havørreder i Naturpark Lillebælt

, 2021
I de kommende år anlægges et stenrev til små havørreder (smolt) i Båring Vig på Nordfyn ud for Storåen. Forskerne forventer, at smolt-revet vil bidrage med gode leve- og skjulesteder for de sårbare smolt, når de forlader vandløbet og svømmer ud i ...
Kristensen, Martin Lykke, Frausing, Marie Hartlev, Kruse, Bo Mammen, Aarestrup, Kim, Svendsen, Jon C., Baktoft, Henrik, Præstbo, Niels Ole   +6 more
core