ArticleEcosystems (New York, N.Y.)2024
Anthropogenic Eutrophication Drives Major Food Web Changes in Mwanza Gulf, Lake Victoria.
Article in Ecosystems (New York, N.Y.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Tiny Crustaceans, Big Story: Subfossil Cladocera and Multi-Proxy Sedimentary Records Reveal over 150 Years of Coupled Effects of Damming, Eutrophication and Aquaculture on a Yangtze Floodplain Lake in China.Animals : an open access journal from MDPI · 2026Article
- Comparative Ecotoxicological Effects of Cyanobacterial Crude Extracts on Native Tropical Cladocerans andToxins · 2025Article
- Testing alternative hypotheses for the decline of cichlid fish in Lake Victoria using fish tooth time series from sediment cores.Biology letters · 2024Article
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Authors and funding
18 authors.
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Abstract
Discerning ecosystem change and food web dynamics underlying anthropogenic eutrophication and the introduction of non-native species is necessary for ensuring the long-term sustainability of fisheries and lake biodiversity. Previous studies of eutrophication in Lake Victoria, eastern Africa, have focused on the loss of endemic fish biodiversity over the past several decades, but changes in the plankton communities over this same time remain unclear. To fill this gap, we examined sediment cores from a eutrophic embayment, Mwanza Gulf, to determine the timing and magnitude of changes in the phytoplankton and zooplankton assemblages over the past century. Biogeochemical proxies indicate nutrient enrichment began around ~ 1920 CE and led to rapid increases in primary production, and our analysis of photosynthetic pigments revealed three zones: pre-eutrophication (prior to 1920 CE), onset of eutrophication with increases in all pigments (1920-1990 CE), and sustained eutrophication with cyanobacterial dominance (1990 CE-present). Cladoceran remains indicate an abrupt decline in biomass in ~ 1960 CE, in response to the cumulative effects of eutrophication and lake-level rise, preceding the collapse of haplochromine cichlids in the 1980s. Supplementary Information: The online version contains supplementary material available at 10.1007/s10021-024-00908-x.
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