Transport of marine-derived nutrients to subtropical freshwater food webs by juvenile mullets: a case study in southern Brazil
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چکیده
منابع مشابه
Are salmon-derived nutrients being incorporated in food webs of invaded streams? Evidence from southern Chile
Using stable isotope analyses of N and C we present preliminary evidence of marine-derived nutrients from introduced Chinook salmon (Oncorhynchus tshawytscha Walbaum) in stream food webs of Laguna Los Patos, NW Patagonia. Similar to values reported within Chinook salmon's native distributional range periphyton and aquatic insects are the trophic levels that show the greatest enrichment of δ15N ...
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15 صفحه اولEffects of stocking-up freshwater food webs.
The establishment of exotic game fishes to enhance recreational fisheries through authorized and unauthorized stocking into freshwater systems is a global phenomenon. Stocked fishes are often top predators that either replace native top predators or increase the species richness of top predators. Many direct effects of stocking have been documented, but the ecosystem consequences are seldom qua...
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ژورنال
عنوان ژورنال: Aquatic Biology
سال: 2014
ISSN: 1864-7782,1864-7790
DOI: 10.3354/ab00544