Climate change decreases aquatic ecosystem productivity of Lake Tanganyika, Africa

  title={Climate change decreases aquatic ecosystem productivity of Lake Tanganyika, Africa},
  author={Catherine M. O’Reilly and Simone R. Alin and P-D. Plisnier and Andrew S. Cohen and Brent A. McKee},
Although the effects of climate warming on the chemical and physical properties of lakes have been documented, biotic and ecosystem-scale responses to climate change have been only estimated or predicted by manipulations and models. Here we present evidence that climate warming is diminishing productivity in Lake Tanganyika, East Africa. This lake has historically supported a highly productive pelagic fishery that currently provides 25–40% of the animal protein supply for the populations of the… 

Small Changes in Climate Can Profoundly Alter the Dynamics and Ecosystem Services of Tropical Crater Lakes

Evidence is presented that even a modest warming of the air and changes in the timing and intensity of rainfall can have significant consequences on the dynamics of this common tropical lake type, highlighting the far-reaching effects of global climatic change on tropical waters.

Climate Change Forces New Ecological States in Tropical Andean Lakes

It is shown that recent climate changes have forced alpine lakes of the equatorial Andes towards new ecological and physical states, in close synchrony to the rapid shrinkage of glaciers regionally, with potentially far-reaching consequences for Andean water resources.

Limnological and ecological sensitivity of Rwenzori mountain lakes to climate warming

An increasing number of studies forecast that anthropogenic climate change poses serious consequences for the biodiversity and ecosystem functioning of high-elevation mountain lakes, through a series

Effects of Climate Change on Lakes

Climate warming reduces fish production and benthic habitat in Lake Tanganyika, one of the most biodiverse freshwater ecosystems

Paleoecological records from Lake Tanganyika show that declines in commercially important fishes and endemic molluscs have accompanied lake warming, indicating that climate warming and intensifying stratification have almost certainly reduced potential fishery production, helping to explain ongoing declines in fish catches.

Environmental Impacts—Lake Ecosystems

The North Sea region contains a vast number of lakes; from shallow, highly eutrophic water bodies in agricultural areas to deep, oligotrophic systems in pristine high-latitude or high-altitude areas.

The impacts of global and local change on a tropical lake over forty years

Abstract Lakes across the world are experiencing novel trophic states, declining water quality, and altered biogeochemical cycling due to the synergistic impacts of global change and local

10 Environmental Impacts — Lake Ecosystems

The North Sea region contains a vast number of lakes; from shallow, highly eutrophic water bodies in agricultural areas to deep, oligotrophic systems in pristine high-latitude or high-altitude areas.



Nutrient chemistry of the water column of Lake Tanganyika

Lake Tanganyika shows pcrmancnt thermal stratification with deep-water temperatures that have been stable over the period of observation (since 1939). The lake is anoxic below - 150-m depth. In

Environmental Change and Response in East African Lakes

  • J. T. Lehman
  • Environmental Science
    Monographiae Biologicae
  • 1998
Preface. Introduction. History and Ontogeny of IDEAL D.A. Lehman. Investigations of Lake Victoria. Climate, History and Modern Dynamics. Historical Fluctuations of Lake Victoria and Other Lakes in

Lake tanganyika: Water chemistry, sediments, geological structure

The water chemistry of the lake is uniform throughout its entire length and depth except for the nutrient minerals ammonia, nitrate, phosphate, and silica. Sediment fill in the lake is very massive.

Physical energy inputs and the comparative ecology of lake and marine ecosystems

Although freshwater and marine systems both receive light and heat energy from the sun and are mixed by the wind, only marine systems receive additional mechanical energy from the tide. This input is

Nutrients and Plankton Biomass in the Rift Lake Sources of the White Nile: Lakes Albert and Edward

The rift lakes Albert and Edward, as well as Lake George, Uganda, were sampled at nearshore and offshore sites during March 1995 with attention to water column chemistry, plankton biomass, and

Limnological annual cycle inferred from physical-chemical fluctuations at three stations of Lake Tanganyika

Ten variables were measured at least twice per month at three locations of Lake Tanganyika (East Africa) over one year (1993–94). Upwelling was observed in the south of the lake during the dry, windy

Production, sedimentation, and isotopic composition of organic matter in Lake Ontario

Organic matter and its carbon and nitrogen isotopic composition were measured in sequential sediment trap and core samples from the Rochester Basin of Lake Ontario to evaluate their usefulness in

Interpreting stable isotopes in food webs: Recognizing the role of time averaging at different trophic levels

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 enrichment from

African climate change: 1900-2100

This paper reviews observed (1900-2000) and possible future (2000-2100) continent- wide changes in temperature and rainfall for Africa. For the historic period we draw upon a new observed global