publication . Article . 2010

Ecological significance of hazardous concentrations in a planktonic food web

Karel De Schamphelaere; Karel De Schamphelaere; Karel De Schamphelaere; Colin Janssen; Jack Middelburg; Jack Middelburg;
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  • Published: 01 Jan 2010 Journal: Ecotoxicology and Environmental Safety, volume 73, pages 247-253 (issn: 0147-6513, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Netherlands
Abstract
Species sensitivity distributions (SSDs) are statistical distributions that are used to estimate the potentially affected fraction (PAF) of species at a given toxicant concentration, the hazardous concentration for that fraction of species (<em>HC</em><sub><em>PAF</em></sub>). Here, we use an aquatic food web model that includes 14 phytoplankton and 6 zooplankton species to estimate the number of species experiencing a biomass reduction when the food web is exposed to the <em>HC</em><sub><em>PAF</em></sub> and this for 1000 hypothetical toxicants and for PAF=5–30%. When choosing a 20% decrease as a cut-off to categorize a species’ biomass as affected, 0–1 and 2–...
Subjects
free text keywords: Public Health, Environmental and Occupational Health, Pollution, Health, Toxicology and Mutagenesis, General Medicine, Plankton, Phytoplankton, Ecosystem, Biomass, Food web, Biology, Zooplankton, Aquatic ecosystem, Ecology, Global biodiversity
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