Carotenoid pigment profiles distinguish anadromous and nonanadromous brown trout (Salmo trutta)

1997 ◽  
Vol 54 (5) ◽  
pp. 1064-1066 ◽  
Author(s):  
A F Youngson ◽  
A I Mitchell ◽  
P T Noack ◽  
L M Laird
Keyword(s):  
Muscle Tissue ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Anadromous Fish ◽  
Carotenoid Pigment ◽  
Tissue Extracts ◽  
Brown Trout Salmo Trutta ◽  
Complete Accuracy

Carotenoid pigment profiles were determined in muscle tissue extracts of anadromous and nonanadromous brown trout (Salmo trutta). In nonanadromous fish, zeaxanthin, lutein, astaxanthin, canthaxanthin, and two unidentified pigments were detected in some or all individuals. In anadromous fish, only astaxanthin and lutein were detected. On the basis of carotenoid pigment profiles, it was possible to distinguish the anadromous and nonanadromous individuals examined in this study with complete accuracy.

scholarly journals Assessment of metal contamination in the upper reaches of the Tichá Orlice River

2011 ◽  
Vol 49 (No. 10) ◽  
pp. 458-464 ◽  
Author(s):  
Z. Svobodová ◽  
O. Čelechovská ◽  
J. Kolářová ◽  
T. Randák ◽  
V. Žlábek
Keyword(s):  
Muscle Tissue ◽  
Brown Trout ◽  
Metal Contamination ◽  
Salmo Trutta ◽  
Anthropogenic Source ◽  
Contamination Assessment ◽  
Mercury Compounds ◽  
Brown Trout Salmo Trutta ◽  
The Difference ◽  
Cadmium Lead

The aim of the present study was to assess metal contamination in the same reaches of the river, and thus to help explain unsatisfactory reproduction results in the reproduction of salmonoid fish. The contamination assessment was based on measuring metal concentrations in the brown trout (Salmo trutta morpha fario) and some bottom sediment samples. The samples were collected in June 2000 and 2001 at two collection sites from theTicháOrliceRiver (Červená Voda – 103rd river km; Lichkov – 93rd river km) and its tributary Kralický Brook (100th river km). At each of the sites, 14 brown trouts were collected in each of the periods of monitoring. The AAS method was used to determine the total mercury, arsenic, cadmium, lead, copper, zinc, chromium and nickel contents in the muscle tissue of the fish and in aquatic sediments. The Kralický Brook is an important anthropogenic source of metal contamination (particularly of mercury and copper) for theTicháOrliceRiver. The highest concentrations of mercury in muscles of brown trout were found at the Kralický Brook (0.37 ± 0.08 and 0.40 ± 0.08 mg/kg) and Lichkov (0.41 ± 0.10 and 0.34 ± 0.07 mg/kg) in 2000 and 2001 and the lowest concentration at Červená Voda (0.017 ± 0.02 mg/kg in the same years). Significantly higher concentrations of arsenic (in 2000: 0.30 ± 0.08 mg/kg; in 2001: 0.38 ± 0.07 mg/kg) were found in the muscle tissue of the brown trout collected at Červená Voda than at the downstream site Lichkov (in 2000: 0.18 ± 0.09 mg/kg;in 2001: 0.14 ± 0.07 mg/kg). The authors hypothesize that the difference was due to different conditions (principally water temperature). It seems reasonable to assume that unsatisfactory results in the reproduction of fish from the upper reaches of theTicháOrliceRiver are due not only to organic pollutants but also to mercury compounds that are classified among suspect endocrine disruptors.  

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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