A growing body of evidence suggests that most of the world's lakes are supersaturated with
CO2 and export significant amounts of CO2 to the atmosphere. Still, the temperature …

Carbon stable isotopes (δ 13 C) of particulate organic matter (POM) have been used as
indicators for energy flow, primary productivity and carbon dioxide concentration in …

Lake Tanganyika, East Africa, has a simple pelagic food chain, and trophic relationships
have been established previously from gut‐content analysis. Instead of expected isotopic …

This report was written to provide background information for aquatic ecologists interested in
using stable isotope analysis (SIA). Ratios of stable isotopes of carbon (13C/12C), nitrogen …

We examined carbon cycling in the Mississippi River using stable isotopes of inorganic
carbon and dissolved oxygen. Eighteen sites were sampled along the river and its tributaries …

Stable isotope analysis of the potential prey and predator can be combined with gut content
analysis to quantify the diet. This dietary knowledge allows the quantitative assessment of …

Seasonal variation in mercury (Hg) concentrations and food web structure was assessed for
eastern Lake Ontario. Hg concentrations, measured in 6 species of invertebrates and 8 …

The stable carbon isotope ratio δ13C is a useful tracer of energy flow in lake food webs, and
the zooplankton signature is commonly used to establish a baseline for the pelagic habitat …

Fresh waters worldwide receive substantial loadings of particulate organic waste from
municipal sewage collection and treatment works. This material may transport a wide variety …

We evaluated the role of sewage as a resource for the littoral food web of the fluvial St.
Lawrence River near Montreal, Quebec. Stable isotope analysis indicated that …