scholarly journals The importance of seasonal macrophyte cover for the behaviour and performance of brown trout ( Salmo trutta ) in a groundwater‐fed river

2019 ◽  
Vol 64 (10) ◽  
pp. 1787-1796
Author(s):  
Andrew S. Vowles ◽  
Paul S. Kemp
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Brown Trout Salmo Trutta ◽  
And Performance ◽  
Macrophyte Cover

Influence of baffles on upstream passage of brook trout and brown trout in an experimental box culvert

2019 ◽  
Vol 76 (1) ◽  
pp. 28-41 ◽  
Author(s):  
Jason M. Duguay ◽  
R.W. Jay Lacey ◽  
Theodore Castro-Santos
Keyword(s):  
Brown Trout ◽  
Brook Trout ◽  
Salmo Trutta ◽  
Salvelinus Fontinalis ◽  
Fish Passage ◽  
Maximum Distance ◽  
Brown Trout Salmo Trutta ◽  
And Performance ◽  
Box Culvert ◽  
Experimental Flume

There is much to learn about improving baffle designs to increase successful fish passage through culverts. A fish’s motivation to attempt entry into the culvert is essential. Upon entry, successful passage will largely depend on the physiological ability of the fish to navigate the entire culvert length. In this study, the motivation of brook trout (Salvelinus fontinalis (Mitchill, 1814)) and brown trout (Salmo trutta Linnaeus, 1758) to attempt ascent of an experimental flume, which mimics a roadway culvert left bare (smooth) or fitted with either spoiler or weir baffles, is assessed. Performance, measured as maximum distance of ascent within the flume, is also quantified. The bare flume was the most motivating for brook trout, and the weirs were most motivating for brown trout. As a rule, brown trout showed less motivation to stage attempts than brook trout, except within the weir baffle treatments. Performance was greatest in the weirs for smaller trout and in the spoiler baffles for larger trout. Our findings suggest that baffle form influences passage rates at road crossings in ways previously unknown and further stresses the importance of considering fish motivation and performance together when assessing the efficacy of baffle forms.

Behavioural syndromes in juvenile brown trout (Salmo trutta); life history, family variation and performance in the wild

2011 ◽  
Vol 65 (9) ◽  
pp. 1801-1810 ◽  
Author(s):  
Johan Höjesjö ◽  
Bart Adriaenssens ◽  
Torgny Bohlin ◽  
Christopher Jönsson ◽  
Illka Hellström ◽  
...  
Keyword(s):  
Life History ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Behavioural Syndromes ◽  
Brown Trout Salmo Trutta ◽  
In The Wild ◽  
Juvenile Brown Trout ◽  
And Performance ◽  
Family Variation

Resistance of erythrocytes from Brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis syndrome

2011 ◽  
Vol 14 (3) ◽  
pp. 443-448 ◽  
Author(s):  
N. Kurhalyuk ◽  
H. Tkachenko ◽  
K. Pałczyńska
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Thiobarbituric Acid ◽  
Control Group ◽  
Thiobarbituric Acid Reactive Substance ◽  
Tbars Level ◽  
Reactive Substance ◽  
Brown Trout Salmo Trutta

Resistance of erythrocytes from Brown trout (Salmo trutta m. trutta L.) affected by ulcerative dermal necrosis syndrome In the present work we evaluated the effect of ulcerative dermal necrosis (UDN) syndrome on resistance of erythrocytes to haemolytic agents and lipid peroxidation level in the blood from brown trout (Salmo trutta m. trutta L.). Results showed that lipid peroxidation increased in erythrocytes, as evidenced by high thiobarbituric acid reactive substance (TBARS) levels. Compared to control group, the resistance of erythrocytes to haemolytic agents was significantly lower in UDN-positive fish. Besides, UDN increased the percent of hemolysated erythrocytes subjected to the hydrochloric acid, urea and hydrogen peroxide. Results showed that UDN led to an oxidative stress in erythrocytes able to induce enhanced lipid peroxidation level, as suggested by TBARS level and decrease of erythrocytes resistance to haemolytic agents.

Evaluation of brown trout (Salmo trutta fario) fillets’ shelf life: Fed with a humic supplemented diet

2021 ◽  
Vol 29 ◽  
pp. 100675
Author(s):  
Muhammed Atamanalp ◽  
Arzu Ucar ◽  
Esat Mahmut Kocaman ◽  
Gonca Alak
Keyword(s):  
Shelf Life ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Brown Trout Salmo Trutta ◽  
Salmo Trutta Fario
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