Results 41 to 50 of about 35,906 (203)

The spatiotemporal distribution and risk factors of amoebic gill disease in the Chilean salmon farms 2013–2022

Academia Biology
The seasonal presence of Amoebic Gill Disease (AGD) in farmed Salmo salar was detected in preliminary samplings to characterize AGD in relation to other coinfections on the east coast of Chiloé Island.
Laura González-Poblete
doaj   +1 more source

An EvoDevo Study of Salmonid Visual Opsin Dynamics and Photopigment Spectral Sensitivity

Frontiers in Neuroanatomy, 2022
Salmonids are ideal models as many species follow a distinct developmental program from demersal eggs and a large yolk sac to hatching at an advanced developmental stage. Further, these economically important teleosts inhabit both marine- and freshwaters
Mariann Eilertsen, Wayne Iwan Lee Davies, Wayne Iwan Lee Davies, Dharmeshkumar Patel, Jonathan E. Barnes, Rita Karlsen, Jessica Kate Mountford, Jessica Kate Mountford, Deborah L. Stenkamp, Deborah L. Stenkamp, Jagdish Suresh Patel, Jagdish Suresh Patel, Jon Vidar Helvik   +12 more
doaj   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

Infectivity of a rickettsia isolated from coho salmon Oncorhynchus kisutch [PDF]

, 1991
Two species of salmonids were tested for their susceptibility to infection by a rickettsia isolated in cell culture from diseased Oncorhynchus kisutch in Chile.
Fryer,, Sandino,, Larenas, J., Garces,, Lannan,, Smith, Pamela   +5 more
core   +1 more source

The physiological response of juvenile diploid and triploid Arctic charr Salvelinus alpinus to exhaustive exercise

Journal of Fish Biology, EarlyView.
Abstract Triploidy is an effective tool for producing sterile fishes but often results in impaired performance in commercial aquaculture. In light of this, our study compared the physiological response to exhaustive exercise in juvenile diploid and triploid Arctic charr Salvelinus alpinus, a polar species with great potential for aquaculture.
John D. Clark, Tillmann J. Benfey
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

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

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

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

Spawning behaviour between endemic delta smelt (Hypomesus transpacificus) and non‐native Wakasagi (H. nipponensis) in the San Francisco estuary

Journal of Fish Biology, EarlyView.
Abstract In the San Francisco Estuary, non‐native Wakasagi Hypomesus nipponensis hybridize with endemic and endangered Delta Smelt H. transpacificus, and all wild‐caught hybrids have a maternal Wakasagi parent. However, the mechanisms that facilitate or impede hybridization and explain sex‐biased hybrid asymmetry between these two species remain ...
Yi‐Jiun Jean Tsai, Luke Ellison, Amanda J. Finger, Evan W. Carson, Nann A. Fangue, Tien‐Chieh Hung   +5 more
wiley   +1 more source