Drought effect on stream morphology and brook trout (Salvelinus fontinalis) populations in forested headwater streams

Hydrobiologia ◽  
2004 ◽  
Vol 515 (1-3) ◽  
pp. 203-213 ◽  
Author(s):  
James P. Hakala ◽  
Kyle J. Hartman
Keyword(s):  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
Headwater Streams ◽  
Drought Effect ◽  
Stream Morphology

Parasite-induced susceptibility to predation in diplostomiasis

Parasitology ◽  
1982 ◽  
Vol 85 (3) ◽  
pp. 495-501 ◽  
Author(s):  
P. Brassard ◽  
M. E. Rau ◽  
M. A. Curtis
Keyword(s):  
Brook Trout ◽  
Salvelinus Fontinalis ◽  
Marked Decrease ◽  
Infected Fish ◽  
Induced Susceptibility ◽  
Diplostomum Spathaceum

Guppies (Lebistes reticulatis) exposed to doses as low as 25 cercariae of Diplostomum spathaceum for 30 min were consistently and significantly more susceptible to predation by brook trout (Salvelinus fontinalis) than uninfected controls. The increase in susceptibility to predation was correlated with a marked decrease in the activity of infected fish.

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