• Publications
  • Influence
Eutrophication of lakes cannot be controlled by reducing nitrogen input: Results of a 37-year whole-ecosystem experiment
TLDR
Reducing nitrogen inputs increasingly favored nitrogen-fixing cyanobacteria as a response by the phytoplankton community to extreme seasonal nitrogen limitation, and the lake remained highly eutrophic, despite showing indications of extreme nitrogen limitation seasonally.
The nearshore phosphorus shunt: a consequence of ecosystem engineering by dreissenids in the Laurentian Great Lakes
TLDR
The nearshore shunt would require even more stringent P management for lakes strongly impacted by dreissenids to maintain nearshore water quality, and highlights areas in need of more research.
The stoichiometry of carbon, nitrogen, and phosphorus in particulate matter of lakes and oceans
TLDR
The relative uniformity of marine C : N : P composition (compared to lakes) at the Redfield ratio suggests that marine plankton cannot be as severely, or as frequently, limited by N and P as lake plankton, and the paradigm of N limitation in the oceans requires qualification.
Total nitrogen, total phosphorus, and nutrient limitation in lakes and oceans: Is there a common relationship?
TLDR
It is concluded that N or P limitation of algal growth is a products of the TN and TP concentration and the TN: TP ratio rather than a product of whether the system of study is marine or freshwater.
Nutrient limitation of phytoplankton in freshwater and marine environments: A review of recent evidence on the effects of enrichment1
TLDR
It is concluded that the extent and severity of N limitation in the marine environment remain an open question, despite the fact that by the late seventies the evidence for P limitation had become so great that phosphorus control was recommended as the legislated basis for controlling eutrophication in North American and European inland waters.
Contributions of Benthic Algae to Lake Food Webs as Revealed by Stable Isotope Analysis
  • R. Hecky, R. Hesslein
  • Environmental Science
    Journal of the North American Benthological…
  • 1 December 1995
TLDR
A broad range of δ 13C is observed at the primary consumer level in nearly all lakes, successfully predicted by an application of a simple isotopic model for photosynthetic fractionation, originally developed for aquatic macrophytes, which uses boundary layer thicknesses reported for benthic algal communities.
The eutrophication of Lake Victoria
  • R. Hecky
  • Environmental Science
  • 1 September 1993
Effects of lake size, water clarity, and climatic variability on mixing depths in Canadian Shield lakes
TLDR
In noneutrophic shield lakes, transparency is controlled by the concentration of dissolved organic C (DOC).
Ecological Consequences of a Century of Warming in Lake Tanganyika
TLDR
A sharpened density gradient has slowed vertical mixing and reduced primary production in Lake Tanganyika, and increased warming rates during the coming century may continue to slow mixing and further reduce productivity.
History and timing of human impact on Lake Victoria, East Africa
TLDR
High–resolution palaeolimnological data are presented, which show that increases in phytoplankton production developed from the 1930s onwards, which parallels human–population growth and agricultural activity in the Lake Victoria drainage basin.
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