Fbi family Biotic Index of Environmental Conditions in Streams Using Macroinvertebrates as Bioindicators




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ZO 403 Invertebrate Zoology Laboratory Bioindicator Exercise

D
FBI - Family Biotic Index of Environmental Conditions in Streams

Using Macroinvertebrates as Bioindicators

Extracted from a book chapter by Resh, Myers and Hannaford.



ata from Hilsenhoff 1988, except:

* Adapted from Lenat 1993

** Adapted from Bode 1988

Plecoptera

Capniidae 1

Chloroperlidae 1

Leuctridae 0

Nemouridae 2

Perlidae 1

Perlodidae 2

Pteronarcyidae 0

Taeniopterygidae 2

Ephemeroptera

Baetidae 4

Baetiscidae 3

Caenidae 7

Ephemerellidae 1

Ephemeridae 4

Heptageniidae 4

Leptophlebiidae 2

Metretopodidae 2

Oligoneuriidae 2

Polymitarcyidae 2

Potomanthidae 4

Siphlonuridae 7

Tricorythidae 4

Odonata

Aeshnidae 3



Calopterygidae 5

Coenagrionidae 9

Cordulegastridae 3

Corduliidae 5

Gomphidae 1

Lestidae 9

Libellulidae 9

Macromiidae 3

Trichoptera

Brachycentridae 1

Calamoceratidae* 3

Glossosomatidae 0

Helicopsychidae 3

Hydropsychidae 4

Hydroptilidae 4

Lepidostomatidae 1

Leptoceridae 4

Limnephilidae 4

Molannidae 6

Odontoceridae 0

Philopotamidae 3

Phryganeidae 4

Polycentropodidae 6

Psychomyiidae 2

Rhyacophilidae 0

Sericostomatidae 3

Uenoidae 3

Megaloptera

Corydalidae 0

Sialidae 4

Lepidoptera

Pyralidae 5

Coleoptera

Dryopidae 5

Elmidae 4

Psephenidae 4

Diptera

Athericidae 2



Blephariceridae 0

Ceratopogonidae 6

Red Chironomidae 8

Other Chironomidae 6

Dolichopodidae 4

Empididae 6

Ephydridae 6

Psychodidae 10

Simuliidae 6

Muscidae 6

Syrphidae 10

Tabanidae 6

Tipulidae 3

Amphipoda**

Gammaridae 4

Hyalellidae 8

Isopoda**

Asellidae 8

Decapoda** 6

Acariformes** 4

Mollusca**

Lymnaeidae 6

Physidae 8

Sphaeriidae 8

Oligochaeta** 8

Hirudinea**

Glossiphoniidae 10

Turbellaria**

Planariidae 4
Index Calculation

FBI = (nI Ii)/nI

where,

ni = number of individuals in collection that belong to family I



Ii = index value for family i from table above

FBI values of 0 - 3.9 indicate relatively undisturbed, unpolluted habitats. Values of 4 - 7.9 indicate moderately disturbed or polluted habitats. Values from 8 - 10 indicate severly disturbed or polluted habitats.





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