Results 11 to 20 of about 15,113 (211)

Saprolegnia parasitica S1 and S2 Strains Differ in Zoospore Transition Timing and Pathogenicity Against Juvenile Atlantic Salmon (Salmo salar). [PDF]

open access: yesJ Fish Dis
ABSTRACT S1 and S2 strains of S. parasitica are both common among diseased farmed salmonids in Nova Scotia, whereas globally S1 is rare and S2 is common. Following the initiation of asexual maturation and overnight incubation at 20°C then harvest, and incubation at 10°C in vitro, S2 secondary zoospores mostly transformed into cysts within 3 h, and by 6 
Duston J   +3 more
europepmc   +2 more sources

Migratory passage structures at hydropower plants as potential physiological and behavioural selective agents [PDF]

open access: yesRoyal Society Open Science, 2019
Anthropogenic activities affect fish populations worldwide. River dams have profound impacts on ecosystems by changing habitats and hindering migration.
Tormod Haraldstad   +4 more
doaj   +1 more source

The geometry of reaction norms yields insights on classical fitness functions for Great Lakes salmon. [PDF]

open access: yes, 2020
Life history theory examines how characteristics of organisms, such as age and size at maturity, may vary through natural selection as evolutionary responses that optimize fitness.
Breck, James E   +5 more
core   +2 more sources

Shorter juvenile telomere length is associated with higher survival to spawning in migratory Atlantic salmon [PDF]

open access: yes, 2017
The risk of mortality associated with a long-distance migration will depend on an animal's physiological state, as well as the prevailing ecological conditions.
Armstrong, John D.   +6 more
core   +1 more source

Swimming behavior of emigrating Chinook Salmon smolts

open access: yesPLOS ONE, 2022
Swimming behavior of Chinook Salmon (Oncorhynchus tshawytscha) smolts affects transit time, route selection and survival in complex aquatic ecosystems. Behavior quantified at the river reach and junction scale is of particular importance for route selection and predator avoidance, though few studies have developed field-based approaches for quantifying
Rusty C. Holleman   +4 more
openaire   +6 more sources

Quantitative Genetics of Smoltification Status at the Time of Seawater Transfer in Atlantic Salmon (Salmo Salar)

open access: yesFrontiers in Genetics, 2021
High mortality during grow out in the sea is a challenge for farmed Atlantic salmon production in Norway and globally, which is partly attributed to suboptimal smolt quality.
Hooi Ling Khaw   +5 more
doaj   +1 more source

Environmental and Genetic (vgll3) Effects on the Prevalence of Male Maturation Phenotypes in Domesticated Atlantic Salmon

open access: yesFishes, 2023
Pre-harvest male maturation is problematic for Atlantic salmon (Salmo salar) farmers and is regulated by the environment and genetics (e.g., vgll3). Five families of all-male salmon parr (produced using YY males crossed with XX females) with different ...
Thomas W. K. Fraser   +2 more
doaj   +1 more source

Process-based modelling of decadal trends in growth, survival, and smolting of wild salmon (Salmo salar) parr in a Scottish upland stream [PDF]

open access: yes, 2008
This paper reports a new model of the freshwater stages of an anadromous fish, at the core of which is a stochastic description of the size-at-age dynamics of a growing cohort. Emigration is assumed to require the individual to exceed a threshold size at
Bacon, Philip J.   +3 more
core   +1 more source

NFAT5 genes are part of the osmotic regulatory system in Atlantic salmon (Salmo salar) [PDF]

open access: yes, 2016
Acknowledgements This study was supported by a grant from the Biotechnology and Biological Sciences Research Council (BBSRC, BB/H008063/1), UK to DGH and SAM. Funding also came from Research Council Norway for project number 241016 for DGH and EJ.
Hazlerigg, David G   +4 more
core   +2 more sources

L’UTILISATION DE L’HUILE DE CLOU DE GIROFLE COMME ANESTHÉSIQUE POUR LES SMOLTS DE SAUMON ATLANTIQUE (SALMO SALAR L.) ET COMPARAISON DE SES EFFETS AVEC CEUX DU 2-PHENOXYETHANOL.

open access: yesKnowledge and Management of Aquatic Ecosystems, 2002
Cette étude révèle que l’huile de clou de girofle est un bon anesthésique pour les smolts de saumon atlantique, plus performant que le 2-phénoxyéthanol car agissant pour de plus faibles concentrations.
CHANSEAU M.   +3 more
doaj   +1 more source

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