scholarly journals Genetic structuring across alternative life‐history tactics and small spatial scales in brown trout ( Salmo trutta )

2020 ◽  
Author(s):  
Jessica R. Rodger ◽  
Hannele M. Honkanen ◽  
Caroline R. Bradley ◽  
Patrick Boylan ◽  
Paulo A. Prodöhl ◽  
...  
Keyword(s):  
Life History ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Spatial Scales ◽  
Genetic Structuring ◽  
Brown Trout Salmo Trutta

scholarly journals Alternative routes to piscivory: Contrasting growth trajectories in brown trout ( Salmo trutta) ecotypes exhibiting contrasting life history strategies

2018 ◽  
Vol 28 (1) ◽  
pp. 4-10 ◽  
Author(s):  
Martin R. Hughes ◽  
Oliver E. Hooker ◽  
Travis E. Leeuwen ◽  
Alan Kettle‐White ◽  
Alastair Thorne ◽  
...  
Keyword(s):  
Life History ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Life History Strategies ◽  
Growth Trajectories ◽  
Brown Trout Salmo Trutta ◽  
Alternative Routes

Seascape and its effect on migratory life-history strategy influences gene flow among coastal brown trout (Salmo trutta) populations in the English Channel

2015 ◽  
Vol 43 (3) ◽  
pp. 498-509 ◽  
Author(s):  
Erwan Quéméré ◽  
Jean-Luc Baglinière ◽  
Jean-Marc Roussel ◽  
Guillaume Evanno ◽  
Philip McGinnity ◽  
...  
Keyword(s):  
Life History ◽  
Gene Flow ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Life History Strategy ◽  
English Channel ◽  
Brown Trout Salmo Trutta

Patterns of genetic structuring in a brown trout (Salmo trutta L.) metapopulation

2010 ◽  
Vol 11 (5) ◽  
pp. 1689-1699 ◽  
Author(s):  
Alexia Massa-Gallucci ◽  
Ilaria Coscia ◽  
Martin O’Grady ◽  
Mary Kelly-Quinn ◽  
Stefano Mariani
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Genetic Structuring ◽  
Brown Trout Salmo Trutta

Diet variability and foraging strategies in brown trout (Salmo trutta): an analysis from subpopulations to individuals

1995 ◽  
Vol 52 (12) ◽  
pp. 2543-2552 ◽  
Author(s):  
Emily E. Bridcut ◽  
Paul S. Giller
Keyword(s):  
Graphical Models ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Spatial Scales ◽  
Field Studies ◽  
Diet Analysis ◽  
Foraging Strategies ◽  
Feeding Strategies ◽  
Brown Trout Salmo Trutta ◽  
Over Time

Field studies were conducted to examine intra- and inter-individual diet variation in subpopulations of brown trout (Salmo trutta) at different spatial scales (between sites, between habitats (riffle and pool) within a site, and between individuals within a habitat) and different temporal scales (within subpopulations and within individuals over time) at four sites in the Glenfinish River, County Cork, Ireland. Electrofishing and stomach flushing techniques were used whereby fish larger than 85 mm were uniquely coded, allowing for repeated capture and diet analysis of individuals. A considerable degree of variation within and between subpopulations and individual diets was apparent. On the basis of novel and recent graphical models of feeding strategies, the trend was for a generalized strategy amongst trout subpopulations occupying riffles throughout most seasons, whilst specialization tended to be more frequent amongst trout occupying pools during summer and autumn. Using similarity indices and dendrograms, we illustrate that individual fish showed both feeding strategies within one habitat over time.

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