Results 41 to 50 of about 3,864 (223)

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

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

Environmental DNA Reflects Differences in Freshwater Habitat Use Between Two Pacific Salmonids at Fine Temporal Scales

Environmental DNA
Environmental DNA (eDNA) has emerged as a powerful tool to detect aquatic species, providing a non‐invasive survey option for applications in freshwater fisheries, including delineating habitat use and informing stock management strategies.
Brock T. Burgess, Richard Chea, Kristen M. Westfall, Cathryn L. Abbott, Josephine C. Iacarella   +4 more
doaj   +1 more source

The impact of isosmotic conditions on the metabolism and hypoxia tolerance of a reportedly oxyconforming teleost

Journal of Fish Biology, EarlyView.
Abstract Fish must manage the competing demands of ion balance and gas exchange across the gills – a physiological tension known as the osmorespiratory compromise. In dynamic estuarine environments, the osmorespiratory compromise may be exacerbated by variable salinity and periods of hypoxia that demand high respiratory work.
Timothy D. Clark, Luis L. Kuchenmüller, Elizabeth C. Hoots, Maryane Gradito, Jake M. Martin   +4 more
wiley   +1 more source

Transferrin Polymorphism in Coho Salmon (Oncorhynchus kisutch)

, 1970
Six transferrin phenotypes observed in sera of coho salmon (Oncorhynchus kisutch) were interpreted as a reflection of three alleles — TfA, TfB, and TfC— at a single locus.
Harold O. Hodgins, Fred M. Utter, Warren E. Ames   +2 more
core   +1 more source

Temperature preference, aerobic scope and upper thermal tolerance in sympatric juvenile chinook slamon (Oncorhynchus tshawytscha) and coho salmon (O. kisutch) [PDF]

, 2018
Wild Chinook salmon (Oncorhynchus tshawytscha) and coho salmon (O. kisutch) from the Horsefly River in central British Columbia vary in adult migration timing, but often rear sympatrically as juveniles. These species provide an interesting opportunity to

core   +1 more source

Assessing the impacts of aquaculture on local fish communities using environmental DNA metabarcoding analysis

Environmental DNA
Fish aquaculture potentially affects the local ecosystem through feed (leftovers) and feces. However, evaluation of its impacts on biodiversity, especially those of mobile organisms such as fish, is not straightforward.
Shota Suzuki, Yuri Otomo, Akihiro Dazai, Takuzo Abe, Michio Kondoh   +4 more
doaj   +1 more source

Presence of 6PPD-quinone in runoff water samples from Norway using a new LC–MS/MS method

Frontiers in Environmental Chemistry, 2023
The chemical 6PPD-quinone is highly toxic to some fish species of the Oncorhynchus and Salvelinus genera and is the oxidation product of the common car tire additive 6PPD.
Fedor Kryuchkov, Anders Foldvik, Roar Sandodden, Silvio Uhlig, Silvio Uhlig   +4 more
doaj   +1 more source

Piscirickettsiosis in Farmed Turbot, Scophthalmus maximus

Journal of Fish Diseases, EarlyView.
ABSTRACT Piscirickettsia salmonis is a well‐established intracellular pathogen of farmed Atlantic salmon around the world. The bacterium has also been detected from a number of other hosts including lumpfish (Cyclopterus lumpus), seabass (Dicentrarchus labrax) and rainbow trout (Oncorhynchus mykiss).
Hanne K. Nilsen, Magne Kjerulf Hansen, Raoul Kuiper, Jan Inge Øvrebø, Kjersti Sturød, Maryam Saghafian, Snorre Gulla, Anne Berit Olsen, Duncan J. Colquhoun, Ole Bendik Dale   +9 more
wiley   +1 more source

Characterization of hepatic glutathione S-transferases in coho salmon (Oncorhynchus kisutch) [PDF]

Aquatic Toxicology, 2007
The glutathione S-transferases (GSTs) are a family of phase II detoxification enzymes which protect against chemical injury. In contrast to mammals, GST expression in fish has not been extensively characterized, especially in the context of detoxifying waterborne pollutants.
Mary, Trute, Byron, Gallis, Catalin, Doneanu, Scott, Shaffer, David, Goodlett, Evan, Gallagher   +5 more
openaire   +2 more sources