Activity cycles in the brown trout (Salmo trutta Lin.)

Hydrobiologia ◽  
1962 ◽  
Vol 20 (3) ◽  
pp. 241-247 ◽  
Author(s):  
D. R. Swift
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Brown Trout Salmo Trutta ◽  
Activity Cycles

Activity Cycles in the Brown Trout (Salmo trutta L.): 2. Fish Artificially Fed

1964 ◽  
Vol 21 (1) ◽  
pp. 133-138 ◽  
Author(s):  
D. R. Swift
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Activity Patterns ◽  
Maximum Activity ◽  
Locomotory Activity ◽  
Prime Stimulus ◽  
Brown Trout Salmo Trutta ◽  
Annual Activity ◽  
Activity Cycles ◽  
Increased Activity

The diurnal and annual locomotory activity cycles of four brown trout confined in separate cages on the bed of Windermere and fed artificially from the lake surface are described. The annual activity curves were very similar, the fish being less active during the winter than in the summer with maximum activity occurring in June and again in August. The diurnal activity patterns were also very similar with a sharp rise in activity at dawn each day after an inactive night, the increased activity being maintained throughout the light period and falling rapidly at dusk.Two of the fish were fed daily at irregular times and two were fed automatically every 2 hr. The similarity of the activity patterns of these four fish and also the similarity to the patterns of unfed fish described in a previous paper suggests that light and not food is the prime stimulus to locomotory activity in brown trout.

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
Sign in / Sign up

Export Citation Format

Share Document