Resource use by juvenile brown trout and Alpine bullhead: influence of interspecific versus intraspecific competition

2013 ◽  
Vol 23 (2) ◽  
pp. 234-243 ◽  
Author(s):  
Pauliina Louhi ◽  
Aki Mäki-Petäys ◽  
Ari Huusko ◽  
Timo Muotka
Keyword(s):  
Brown Trout ◽  
Resource Use ◽  
Intraspecific Competition ◽  
Juvenile Brown Trout

Impact of channel bar form and grain size variability on estimated stranding risk of juvenile brown trout during hydropeaking

2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
Christoph Hauer ◽  
Günther Unfer ◽  
Patrick Holzapfel ◽  
Marlene Haimann ◽  
Helmut Habersack
Keyword(s):  
Grain Size ◽  
Brown Trout ◽  
Size Variability ◽  
Juvenile Brown Trout ◽  
Channel Bar

scholarly journals Polystyrene microplastics do not affect juvenile brown trout (Salmo trutta f. fario) or modulate effects of the pesticide methiocarb

2020 ◽  
Vol 32 (1) ◽  
Author(s):  
Hannah Schmieg ◽  
Sven Huppertsberg ◽  
Thomas P. Knepper ◽  
Stefanie Krais ◽  
Katharina Reitter ◽  
...  
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Brown Trout Salmo Trutta ◽  
Juvenile Brown Trout

Design of a multi-parametric profile for assessing the acclimation period of juvenile brown trout after an acute transport to new housing environment

2019 ◽  
Vol 219 ◽  
pp. 104835 ◽  
Author(s):  
Tânia Vieira Madureira ◽  
Joana Luísa Costa ◽  
Fernanda Malhão ◽  
Célia Lopes ◽  
José F. Gonçalves ◽  
...  
Keyword(s):  
Brown Trout ◽  
Housing Environment ◽  
Acclimation Period ◽  
Juvenile Brown Trout

scholarly journals Investigating the phenology of seaward migration of juvenile brown trout (Salmo trutta) in two European populations

Hydrobiologia ◽  
2016 ◽  
Vol 775 (1) ◽  
pp. 139-151 ◽  
Author(s):  
E. R. Winter ◽  
J. S. Tummers ◽  
K. Aarestrup ◽  
H. Baktoft ◽  
M. C. Lucas
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Seaward Migration ◽  
Brown Trout Salmo Trutta ◽  
Juvenile Brown Trout ◽  
European Populations

Influence of food abundance on individual behaviour strategy and growth rate in juvenile brown trout (Salmo trutta)

2003 ◽  
Vol 81 (4) ◽  
pp. 684-692 ◽  
Author(s):  
Eva Brännäs ◽  
Sara Jonsson ◽  
Hans Lundqvist
Keyword(s):  
Brown Trout ◽  
Growth Rates ◽  
Salmo Trutta ◽  
Swimming Activity ◽  
Food Abundance ◽  
Individual Growth ◽  
Food Level ◽  
General Tendency ◽  
Brown Trout Salmo Trutta ◽  
Juvenile Brown Trout

We studied the benefit of being territorial as an effect of food abundance by measuring the proportions of individuals that displayed a territorial, floating (individuals occasionally displayed territorial behaviour), or nonterritorial (shoaling) behaviour strategy, and individual growth rates. Also, swimming activity was monitored as an indicator of emigration. Replicate groups of 12 juvenile brown trout (Salmo trutta) were released into an artificial stream channel, fed according to one of four food regimes for 10 days, and allocated to one of three behaviour categories. There was no significant relationship between food abundance and the number of territorial individuals. Instead, the proportions of individuals that displayed the alternative behaviour strategies, i.e., floating and nonterritorial, changed with food abundance. At the lowest food level, more individuals displayed nonterritorial than floating behaviour, but these two strategies were equally represented at the highest food level. The difference in growth rates with respect to behaviour category was highest at intermediate food levels. At the highest and lowest food levels, nonterritorial fish and floaters grew nearly as fast or as poorly, respectively, as the territorial individuals. Swimming activity between the two sections of the stream tank was greatest at the lowest food level, and there was a general tendency (not significant) for the floaters to exhibit the greatest activity.

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