منابع مشابه
Fish-mediated nutrient recycling and the trophic cascade in lakes
The effects of planktivorous fish on phytoplankton through nutrient recycling and zooplankton herbivory were experimentally separated and their relative importance quantified in a eutrophic humic lake. Natural phytoplankton assemblages were incubated in nutrient-permeable chambers placed inside enclosures with or without fish. Outside these chambers, phytoplankton were exposed to zooplankton he...
متن کاملFish and harlequin ducks compete on breeding streams
We investigated interactions among harlequin ducks (Histrionicus histrionicus (L., 1758)), fish, and their shared aquatic insect prey. We measured flow variability, benthic aquatic prey abundance, fish presence, and breeding density of harlequins on eight rivers in the Southern Coast Mountain Range in British Columbia, Canada, in 2003 and 2004. Rivers with lower flow variability had higher abun...
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ژورنال
عنوان ژورنال: Bulletin de l'Académie vétérinaire de France
سال: 2007
ISSN: 0001-4192
DOI: 10.4267/2042/47867