Table 1: Tolerance values for MCI-based biotic indices in hard-bottomed (HB) (Stark et al 2001) and soft-bottomed (SB) (Stark and Maxted 2007) streams

COELENTERATA

Odonata (continued)

Diptera (continued)

Hydra

3

1.6*

Ischnura

-

3.1*

Psychodidae

1

6.1

PLATYHELMINTHES

3

0.9

Procordulia

6

3.8*

Scatella

7

-

RHABDOCOELA

-

0.9*

Uropetala

5

0.4

Sciomyzidae

3

3.0

BRYOZOA

-

4.0*

Xanthocnemis

5

1.2

Stratiomyidae

5

4.2

NEMATODA

3

3.1

Hemiptera

Syrphidae

1

1.6*

NEMATOMORPHA

3

4.3

Anisops

5

2.2

Tabanidae

3

6.8

NEMERTEA

3

1.8

Diaprepocoris

5

4.7*

Tanypodinae

5

6.5

OLIGOCHAETA

1

3.8

Microvelia

5

4.6

Tanytarsini

3

4.5

POLYCHAETA

-

6.7*

Saldidae

5

3.9

Tanytarsus

3

-

HIRUDINEA

3

1.2

Sigara

5

2.4

Thaumaleidae

9

8.8

TARDIGRADA

-

4.5*

Coleoptera

Tipulidae

5

3.4

CRUSTACEA

Antiporus

5

3.5

Zelandotipula

6

3.6

Amphipoda

5

5.5

Berosus

5

-

Trichoptera

Cladocera

5

0.7*

Copelatus

5

3.7

Alloecentrella

9

-

Copepoda

5

2.4*

Dytiscidae

5

0.4*

Aoteapsyche

4

6.0

Halicarcinus

-

5.1*

Elmidae

6

7.2

Beraeoptera

8

7.0*

Helice

-

6.6*

Enochrus

5

2.6

Confluens

5

7.2*

Isopoda

5

4.5

Hydraenidae

8

6.7

Conuxia

8

-

Mysidae

-

6.4*

Hydrophilidae

5

8.0

Costachorema

7

7.2*

Ostracoda

3

1.9

Liodessus

5

4.9*

Cryptobiosella

9

-

Paracalliope

5

-

Onychohydrus

5

-

Diplectrona

9

-

Paraleptamphopus

5

-

Podaena

8

-

Ecnomina

8

9.6

Paranephrops

5

8.4

Ptilodactylidae

8

7.1

Edpercivalia

9

6.3*

Paranthura

-

4.9*

Rhantus

5

1.0

Ecnominidae

8

-

Paratya

5

3.6

Scirtidae

8

6.4

Helicopsyche

10

8.6

Tanaidacea

4

6.8*

Staphylinidae

5

6.2

Hudsonema

6

6.5

INSECTA

Neuroptera

Hydrobiosella

9

7.6*

Ephemeroptera

Kempynus

5

-

Hydrobiosis

5

6.7

Acanthophlebia

7

9.6

Diptera

Hydrochorema

9

-

Ameletopsis

10

10.0

Anthomyiidae

3

6.0

Kokiria

9

-

Arachnocolus

8

8.1

Aphrophila

5

5.6

Neurochorema

6

6.0

Atalophlebioides

9

4.4*

Austrosimulium

3

3.9

Oecetis

6

6.8

Austroclima

9

6.5

Calopsectra

4

-

Oeconesidae

9

6.4

Austronella

7

4.7

Ceratopogonidae

3

6.2

Olinga

9

7.9

Coloburiscus

9

8.1

Chironomidae

2

3.8

Orthopsyche

9

7.5

Deleatidium

8

5.6

Chironomus

1

3.4

Oxyethira

2

1.2

Ichthybotus

8

9.2

Corynoneura

2

1.7*

Paroxyethira

2

3.7

Isothraulus

8

7.1

Cryptochironomus

3

-

Philorheithrus

8

5.3*

Mauiulus

5

4.1

Culex

3

-

Plectrocnemia

8

6.6*

Neozephlebia

7

7.6

Culicidae

3

1.2

Polyplectropus

8

8.1

Nesameletus

9

8.6

Diptera indet.

3

2.9

Psilochorema

8

7.8

Oniscigaster

10

5.1*

Dixidae

4

7.1

Pycnocentrella

9

-

Rallidens

9

3.9

Dolichopodidae

3

8.6

Pycnocentria

7

6.8

Siphlaenigma

9

-

Empididae

3

5.4

Pycnocentrodes

5

3.8

Tepakia

8

7.6

Ephydridae

4

1.4*

Rakiura

10

-

Zephlebia

7

8.8

Eriopterini

9

7.5

Synchorema

9

-

Plecoptera

Harrisius

6

4.7

Tiphobiosis

6

9.3

Acroperla

5

5.1

Hexatomini

5

6.7

Triplectides

5

5.7

Austroperla

9

8.4

Limnophora

3

4.5

Triplectidina

5

-

Cristaperla

8

-

Limonia

6

6.3

Zelandoptila

8

7.0

Halticoperla

8

-

Lobodiamesa

5

7.7

Zelolessica

10

6.5*

Megaleptoperla

9

7.3

Maoridiamesa

3

4.9

Lepidoptera

Nesoperla

5

5.7

Mischoderus

4

5.9

Hygraula

4

1.3

Spaniocerca

8

8.8

Molophilus

5

6.3

Collembola

6

5.3

Spaniocercoides

8

-

Muscidae

3

1.6

ACARINA

5

5.2

Stenoperla

10

9.1

Nannochorista

7

-

ARACHNIDA

Taraperla

7

8.3*

Neocurupira

7

-

Dolomedes

5

6.2

Zelandobius

5

7.4

Neolimnia

3

5.1

MOLLUSCA

Zelandoperla

10

8.9

Nothodixa

4

9.3

Gundlachia = Ferrissia

3

2.4

Megaloptera

Orthocladiinae

2

3.2

Glyptophysa = Physastra

5

0.3*

Archichauliodes

7

7.3

Parochlus

8

-

Gyraulus

3

1.7

Odonata

Paradixa

4

8.5

Hyridella

3

6.7

Aeshna

5

1.4*

Paralimnophila

6

7.4

Latia

3

6.1

Anisoptera

5

6.0

Paucispinigera

6

7.7

Lymnaeidae

3

1.2

Antipodochlora

6

6.3

Pelecorhyncidae

9

-

Melanopsis

3

1.9

Austrolestes

6

0.7

Peritheates

7

-

Physa = Physella

3

0.1

Hemianax

-

1.1*

Podonominae

8

6.4*

Potamopyrgus

4

2.1

Hemicordulia

5

0.4

Polypedilum

3

8.0

Sphaeriidae

3

2.9