Results 51 to 60 of about 15,113 (211)

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

Use of biological reference points for the conservation of atlantic salmon (Salmo salar L.)in the River Lune, North West England. [PDF]

, 2005
This paper deals with the development and use of biological reference points for salmon conservation on the River Lune, England. The Lune supports recreational and net fisheries with annual catches in the region of 1,000 and 1356 salmon respectively ...
Aprahamian, M.W., Shields, B., Wyatt, R.
core  

Do the biological characteristics of trout (Salmo trutta) smolts influence their spring migration timing and maiden marine sojourn duration?

Journal of Fish Biology, EarlyView.
Abstract Anadromous salmonids migrate seaward to exploit feeding and growth opportunities in marine habitats, yet how smolt biological characteristics influence their marine migratory behavior remains poorly understood. This study used 9 years of trout (Salmo trutta) population monitoring data from 15,595 tagged age‐0+ parr, 1033 smolts detected ...
Jonathan P. Gillson, Robert E. Blackwell, Stephen D. Gregory, Jessica E. Marsh, Tea Bašić, Sophie A. M. Elliott, R. Andrew King, David L. Maxwell, William D. Riley, Jamie R. Stevens, Alan M. Walker, Rasmus B. Lauridsen   +11 more
wiley   +1 more source

AN ASSESSMENT OF HEMATOLOGICAL AND SERUM BIOCHEMICAL INDICES IN SALMO TRUTTA CASPIUS

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
Hematological and biochemical serum analyses were carried out in 131 fish specimens in three age and size groups including smolt, juvenile and breeder.
H. Jamalzadeh; A. Keyvan; Sh. Oryan; M. Qomi
doaj  

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

Quinnat salmon (oncorhynchus tshawytscha) spawning in the Rangitikei river [PDF]

, 1983
The occurrence of adult quinnat salmon {Oncorhynchus tshawytscha (Walbaum)) in the Rangitikei River, North Island, New Zealand, has been confirmed on several occasions since 1922, but juvenile salmon have not previously been recorded.
Flain M., McDowall R. M., Patchell G. J., Watson N.   +3 more
core   +2 more sources

Body size of male Atlantic salmon (Salmo salar L.) at introduction of a 5‐week LD12:12 winter signal influences their decision to mature early or smoltify

Journal of Fish Biology, EarlyView.
Abstract Sexual maturation of male Atlantic salmon post‐smolts (‘jacking’) is undesired in aquaculture and seems to occur due to the intensification in modern facilities. Maturation depends on internal and external factors (temperature, photoperiod, feed availability, energy levels, body size, genetic background) that act on the brain‐pituitary‐gonad ...
Enrique Pino‐Martinez, Kristine F. Staveland, Mitchell S. Fleming, Pablo Balseiro, Cindy Pedrosa, Sigurd O. Handeland   +5 more
wiley   +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

Responses of salmonids to habitat changes [PDF]

, 1991
Streams in western North America provide spawning and rearing habitats for several species of salmon and trout that are of substantial economic importance in the region.
Bisson, P. A., Hall, James D., Hicks, Brendan J., Sedell, J. R.   +3 more
core   +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