Osprey with Spotted Sea Trout

Fisheries ◽  
2021 ◽  
Author(s):  
Mike Weimer
Keyword(s):  
Sea Trout

Present Status of the Salmonids Atlantic Salmon and Sea-Trout in the Dutch Part of the River Rhine

1994 ◽  
Vol 29 (3) ◽  
pp. 37-41 ◽  
Author(s):  
W. G. Cazemier
Keyword(s):  
Atlantic Salmon ◽  
Salmo Trutta ◽  
Natural Populations ◽  
River Rhine ◽  
Sea Trout ◽  
The Past ◽  
The North ◽  
Trout Population ◽  
The North Sea ◽  
Heavy Pollution

In the past, the anadromous salmonids, Atlantic salmon (Salmo salar) and sea-trout (Salmo trutta), have formed natural populations in the river Rhine. From the beginning of the nineteenth century onwards, the greater part of the drainage area of the river has been gradually altered from a more or less rural and agricultural area, into a highly industrialised one with subsequent industrialisation, river-engineering and heavy pollution. These developments are considered to be the major cause for the disappearance of the populations of anadromous salmonid fish in the 1950s. The water quality has recovered significantly during the past 25 years. From about 1975 onwards, this process gave rise to a recovery of the anadromous trout population. Results of recent studies of the sea-trout migration pattern are presented. They reveal that nowadays these salmonids can complete their up- and downstream migrations from the North Sea to places, situated at hundreds of kilometres upward the river and vica versa. The numbers of recorded Atlantic salmon and catch locations in inland waters are presented. They show a significant increase since 1989. These phenomena can be understood as promising signs of the recovery of the Rhine aquatic ecosystem.

Cytological status of the gonads and the level of thyroid and sex hormones in juvenile Black Sea trout, Salmo trutta labrax, of two phenotypic forms

2014 ◽  
Vol 54 (7) ◽  
pp. 476-484 ◽  
Author(s):  
D. S. Pavlov ◽  
E. D. Pavlov ◽  
E. V. Ganzha ◽  
V. V. Kostin ◽  
V. Yu. Ponomareva
Keyword(s):  
Sex Hormones ◽  
Black Sea ◽  
Salmo Trutta ◽  
Sea Trout ◽  
Phenotypic Forms

scholarly journals Environmentally sustainable feeding system for sea trout (Salmo trutta m. trutta): Live food and insect meal-based diets in larval rearing

2021 ◽  
Vol 21 ◽  
pp. 100795
Author(s):  
Lilianna Hoffmann ◽  
Mateusz Rawski ◽  
Ewa Pruszyńska-Oszmałek ◽  
Paweł Kołodziejski ◽  
Jan Mazurkiewicz
Keyword(s):  
Salmo Trutta ◽  
Live Food ◽  
Larval Rearing ◽  
Feeding System ◽  
Environmentally Sustainable ◽  
Sea Trout

The distinction between brown trout and sea trout by the strontium content of their scales

1973 ◽  
Vol 5 (4) ◽  
pp. 555-557 ◽  
Author(s):  
T. B. Bagenal ◽  
F. J. H. Mackereth ◽  
J. Heron
Keyword(s):  
Brown Trout ◽  
Strontium Content ◽  
Sea Trout

Aeromonas salmonicida infected fish transfer disease to healthy fish via water

2012 ◽  
Vol 7 (5) ◽  
pp. 878-885
Author(s):  
Vesta Skrodenytė-Arbačiauskienė ◽  
Nijolė Kazlauskienė ◽  
Milda Vosylienė ◽  
Tomas Virbickas
Keyword(s):  
Blood Cell ◽  
Experimental Studies ◽  
Infected Fish ◽  
Aeromonas Salmonicida ◽  
Internal Organs ◽  
European Perch ◽  
Infection Transmission ◽  
Cell Parameters ◽  
Sea Trout ◽  
Tryptone Soya Agar

AbstractExperimental studies of infection transmission via water from infected to healthy fish were conducted. The dark-brown bacterial colonies typical for Aeromonas salmonicida on tryptone soya agar (TSA) have been isolated and counted (from 3.0±0.6×102 to 3.5±0.5×105 c.f.u. g−1) from the internal organs of naturally infected (NI) and experimentally infected (EI) perch and sea trout. No significant differences in dark-brown bacterial counts were detected between EI perch and EI sea trout. The assessment and comparison of the alterations of the biological parameters of EI European perch and sea trout with bacterium Aeromonas salmonicida subsp. salmonicida with naturally infected perch were conducted. No mortality was recorded in groups of EI perch and sea trout. Whereas, the mortality of NI perch (collected from the main sites of outbreak of disease) was observed from the second day of the experiments. Changes in morphophysiological parameters of EI perch and sea trout were similar. Different alterations in blood cell parameters of EI fish were observed, and the most noticeable was the decrease (P≤0.01) in white blood cell count (WBC) of EI perch and sea trout. Based on these results it can be deduced that there is infection transmission of bacterium A. salmonicida from European perch via water to other fish species.

scholarly journals The importance of being familiar: individual recognition and social behavior in sea trout (Salmo trutta)

1998 ◽  
Vol 9 (5) ◽  
pp. 445-451 ◽  
Author(s):  
Johan Höjesjö ◽  
Jörgen I. Johnsson ◽  
Erik Petersson ◽  
Torbjörn Järvi
Keyword(s):  
Social Behavior ◽  
Salmo Trutta ◽  
Individual Recognition ◽  
Sea Trout
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