BIOTIC INDEX CALCULATOR

A Biotic Index is a method of evaluating the quantitative presence of taxa in aquatic ecosystems to estimate water quality.
The collected samples (families, genera, species) are assigned values according to a pre-defined tolerance table.
The resulting value is ranked for the degree of pollution.
_____________

TRY IT YOURSELF

Enter the Systematic Units (i.e. a species is a S.U.) found,
one per row (you don't need to fill all the 45 rows).
The optional field is mandatory in case of: Leuctra (for Plecoptera), Caenidae or Baetidae (for Ephemeroptera).

Use Extended Index    Optimized for non intrusive samplings

Taxa 1:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 2:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 3:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 4:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 5:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 6:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 7:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 8:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 9:   Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 10: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 11: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 12: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 13: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 14: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 15: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 16: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 17: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 18: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 19: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 20: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 21: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 22: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 23: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 24: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 25: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 26: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 27: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 28: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 29: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 30: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 31: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 32: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 33: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 34: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 35: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 36: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 37: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 38: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 39: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 40: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 41: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 42: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 43: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 44: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :
Taxa 45: Ephemeroptera Plecoptera Trichoptera Amphipoda Decapoda Isopoda Diptera Megaloptera Odonata Coleoptera Oligochaeta OTHER Optional (Family/Genus/Species) :