Results 71 to 80 of about 28,569 (254)

Acute freshwater CO2 exposure does not impair seawater transfer in three different sizes of Atlantic salmon (Salmo salar) subjected to different photoperiod manipulations

Journal of Fish Biology, EarlyView.
Abstract There is a growing interest in Atlantic salmon (Salmo salar) aquaculture to extend the time fish are reared in freshwater (FW) recirculating aquaculture systems (RAS), producing larger FW salmon that can then be induced to undergo smoltification before transfer into marine net pens for grow‐out and harvest.
Le Thi Hong Gam, Daniel W. Montgomery, Daniel S. Laronde, Rachael Mackinnon, Jeffrey G. Richards, Colin J. Brauner   +5 more
wiley   +1 more source

Subclinical Listonella anguillarum infection does not impair recovery of swimming performance in rainbow trout Oncorhynchus mykiss [PDF]

, 2005
This study examines whether injections of the commonly used bacterial-challenge pathogen Listonella anguillarum (formerly Vibrio anguillarum) negatively impact the ability of rainbow trout Oncorhynchus mykiss Walbaum to perform repeat swimming trials ...
Tierney, K.B., Balfry, S.K., Farrell, A.P.   +2 more
core   +1 more source

Rayons de la nageoire pectorale comme caractère approprié pour contrôler les souches de truite d'élevage

Knowledge and Management of Aquatic Ecosystems, 1991
On a analysé morphologiquement deux souches de truite arc-en-ciel (Oncorhynchus mykiss), génétiquement différentes. Pour les deux souches, il existe une forte corrélation entre la symétrie des rayons de la nageoire pectorale et le rapport poids/longueur.
PIÑEIRO C., GARCIÁ-VAZQUEZ E., PENDAS A. M., MORAN P.   +3 more
doaj   +1 more source

Kadıncık Deresi’ndeki Çamlıyayla-Mersin Balık Yoğunluğu ve Biyoması

Journal of Agricultural Sciences, 2005
Bu çalışmada, Tarsus Akarsuyu’nun önemli kollarından birisi olan Kadıncık Deresi'nin 16 km’lik koruma altına alınan bölümünde bulunan balık türlerinin yoğunluğu ve biyoması ile birlikte yaş, boy ve ağırlık kompozisyonları ve dağ alabalığının dağılımı ...
Ahmet Şeref Korkmaz
doaj   +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

The lethal concentration (LC50) of Zataria multiflora essential oil in fries of rainbow trout (Oncorhynchus mykiss)

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2011
This research was carried out to determine LC50 for Zataria multiflora essential oil in rainbow trout (Oncorhynchus mykiss) fries at 96 hours. In the process, we used the static O.E.C.D method for 180 rainbow trout fries weighing 5±1 grams in five ...
M. Sharif Rohani email ; M. Haghighi; H. Assaeian
doaj  

Biochemical responses to cadmium exposure in Oncorhynchus mykiss erythrocytes

Ecotoxicology and Environmental Safety, 2017
Cd is known for its carcinogenic effects, however its mechanism of toxicity and in particular its ability to promote oxidative stress is debated. In fact, although it is considered a redox-inactive metal, at high concentration Cd was shown to promote indirectly oxidative stress. In this study we investigated metal accumulation in ex vivo exposed trout (
Orlando, Patrick, Silvestri, Sonia, FERLIZZA, ENEA, ANDREANI, GIULIA, Carpenã, Emilio, Falcioni, Giancarlo, Tiano, Luca, ISANI, GLORIA   +7 more
openaire   +4 more sources

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

FEEDING AND GROWTH EFFICIENCY INDICES OF RAINBOW TROUT (ONCORHYNCHUS MYKISS) DURING DEPRIVATION AND RE-FEEDING PERIODS

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
We studied effects of different feeding deprivation periods on the growth and feed utilization indices of rainbow trout. The study lasted for eight weeks.
A. Imani; M. Farhangi; R. Yazdanparast; M. Bakhtiyari; Z. Shokoh saljoghi; B. Majazi amiri
doaj  

Northern cod (Gadus morhua) movement: insights from acoustic telemetry and genomics

Journal of Fish Biology, EarlyView.
Abstract Knowledge of the timing and diversity of fish movements within a commercially exploited stock complex is required to ensure the sustainability of fisheries. Although migration can be driven by environmental factors, genomic mechanisms also play an important role in this complex life‐history trait. The northern cod (Gadus morhua) stock complex,
M. Lisette Delgado, Nicole Smith, Frederick Whoriskey, Steve Devitt, Emilie Novaczek, Corey J. Morris, Tony Kess, Ian Bradbury, Sara Iverson, Paul Bentzen, Daniel E. Ruzzante   +10 more
wiley   +1 more source