Journal
JOURNAL OF FISH BIOLOGY
Volume 86, Issue 1, Pages 16-31Publisher
WILEY-BLACKWELL
DOI: 10.1111/jfb.12533
Keywords
diet preference; habitat; macroinvertebrate prey; nursery streams; salmonid feeding strategy
Categories
Funding
- Inland Fisheries Ireland
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This study focuses on stream sections within a relatively low nutrient catchment in south-east Ireland in an attempt to characterize the probable effects of riparian canopy on salmonid diet and prey selectivity within two size classes of nursery stream. Sampling found that brown trout Salmo trutta diet changed significantly in response to riparian canopy regardless of stream size. The observation that S. trutta within unshaded stream sites did not feed on drifting terrestrial prey items to the same extent as those within shaded streams was not due to a lack of availability of this food source. There was no evidence to suggest that S. trutta selectively choose particular prey items.
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