Skip to main content

Table 5 NOECs (Williams test, p < 0.05) in μg metiram/L (expressed in terms of nominal treatment level) for macroinvertebrate community and individual taxa that showed a treatment-related effect on at least one sampling

From: Effects of the fungicide metiram in outdoor freshwater microcosms: responses of invertebrates, primary producers and microbes

   Day after first application Note
−12 15 29 43 57
Macro-invertebrates Community – – – – –  
  Total taxa richness – 108↓ – – – Figure 1b
Taxon group Taxon name       
Crustacea Asellidae – – – – 36↑ Low densitya
Hirudinea Erpobdella sp. – – – – 108↑ Low density
Helobdella stagnalis – – 108↑ – – Low density
Insecta Anisoptera 108↓ – – – – Low density
Caenis sp. – 36↓ – – – Low density
Chironomini 108↓ – – – –  
Cloeon dipterum – – – 108↑ – Low density
Dytiscidae (larva) – – – 108↑ 108↑ Low density
Haliplidae (larva) – – – 108↑ – Low density
Helophorus sp. – – – 108↑ – Low density
Notonecta sp. – – – – 108↑ Low density
Sigara sp. – – – – 108↑ Low density
Mollusca G. crista – 108↓ – – – Low density
Planorbis sp. 36↓ – – – – Pre-treatment
Oligochaeta Tubificidae – – – 108↑ – Low density
  1. ↓ = reduction in abundance, ↑ = increase in abundance; – = no significant effect (Williams test, p > 0.05)
  2. aLow density means that the number of individuals per sample was <5
Back to article page