Results 101 to 110 of about 23,673 (244)

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

Genes, fish and fisheries: translating science into policy

Journal of Fish Biology, EarlyView.
Abstract The 2024 Annual Symposium of the Fisheries Society of the British Isles reviewed the burgeoning impact of ‘omics’ technologies on fish ecology, management and forecasting. As with life sciences more generally, major advances in speed, cost‐effectiveness and breadth of applications in ‘omics’ has had profound societal and environmental impacts.
Gary R. Carvalho
wiley   +1 more source

ВЪЗМОЖНОСТИ ЗА МЕЖДУВИДОВА ХИБРИДИЗАЦИЯ ПРИ ПЪСТЪРВОВИ РИБИ ЧРЕЗ МЕТОДИТЕ НА АСИСТИРАНА РЕПРОДУКЦИЯ

Животновъдни науки, 2014
Opportunities for interspecific hybridization in salmonids were discussed. Here we review the literature on interspecific interactions of brown trout with brook trout and Atlantic salmon to assess the potential effects of introduced brook trout on ...
ВАСИЛ АТАНАСОВ
doaj  

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

Safety of a feed additive consisting of folic acid for aquatic species (Chr. Olesen A/S and DSM Nutritional Products Ltd)

EFSA Journal
Following a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety of a feed additive consisting of folic acid intended for use as a ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Roberto Edoardo Villa, Giovanna Azimonti, Eleftherios Bonos, Henrik Christensen, Mojca Durjava, Birgit Dusemund, Ronette Gehring, Boet Glandorf, Maryline Kouba, Marta López‐Alonso, Francesca Marcon, Carlo Nebbia, Alena Pechová, Miguel Prieto‐Maradona, Ilen Röhe, Katerina Theodoridou, Jürgen Gropp, Joana Firmino, Jaume Galobart, Fabiola Pizzo, Jordi Ortuño, Robin Ornsrud   +22 more
doaj   +1 more source

Arctic lake trout (Salvelinus namaycush) show evidence of seasonal acclimation of cardiac adrenergic sensitivity but not heat tolerance

Journal of Fish Biology, EarlyView.
Abstract Many Arctic fishes experience prolonged periods of extreme cold and large thermal variation over both rapid and seasonal time scales which challenge critical physiological functions. In the central Canadian Arctic, we caught wild adult lake trout (Salvelinus namaycush) acclimatized to winter and summer temperatures to determine the extent to ...
Emily P. Williams, Les N. Harris, Jean‐Sébastien Moore, Ella K. Middleton, Shira A. Berkelhammer, Ben Speers‐Roesch, Matthew J. H. Gilbert   +6 more
wiley   +1 more source

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

Journal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce, Martin R. Perrow, Mark L. Tomlinson, Kirsty A. Turner   +3 more
wiley   +1 more source

Modelling relationships between juvenile brown trout (Salmo trutta L.) density and landscape characteristics: Integration of electrofishing data and spatial data to assess population status

Journal of Fish Biology, EarlyView.
Abstract Brown trout (Salmo trutta L.) are ecologically and economically important, but like many salmonids their populations are declining. Trout exhibit a high level of phenotypic plasticity, ranging from freshwater residency to anadromy. This complexity causes problems for assessment and constrains application of adult catch‐based assessment methods
Faye L. Jackson, Robert J. Fryer, Lawrence J. B. Eagle, Iain A. Malcolm   +3 more
wiley   +1 more source

Partially replacing plant protein sources with torula yeast in rainbow trout (Oncorhynchus mykiss) feed increases growth and factors related to immune status

Journal of the World Aquaculture Society
In this study, the impact of adding 10% or 20% torula yeast (PB TY10 and PB TY20) to a fishmeal‐free diet on digestibility and growth of juvenile rainbow trout was assessed.
Ricardo D. Ekmay, Elisabeth Plagnes‐Juan, Pierre Aguirre, Anne Surget, Frédéric Terrier, Laura Frohn, Sandrine Skiba‐Cassy   +6 more
doaj   +1 more source

Effects of cover and mesohabitat type on the abundance of young-of-the-year Chinook salmon

California Fish and Wildlife Journal
Snorkel surveys were conducted on the Sacramento River to investigate the relative importance of microhabitat and mesohabitat scales on the abundance of young of the year (YOY) Chinook salmon (Oncorhynchus tshawytscha), while taking into account temporal
Mark Gard, Sean Gallagher
doaj   +1 more source