Sensitivity Values
for Southern Ontario Aquatic Macroinvertebrates

(version 990331)

Macroinvertebrate Taxa Sensitivity Value
TRUE FLIES:
    Athericidae:
  • Atherix
 3
    Blephariceridae:
  • Blepharicera
 4
    Ceratopogonidae
 0
    Chaoboridae:
  • Chaoborus
 0
    Chironomidae:
  • Ablabesmyia
 2
  • Apsectrotanypus
 4
  • Brillia parva
 4
  • Brillia (others)
 2
  • Brundiniella
 4
  • Cardiocladius
 2
  • Chaetocladius
 1
  • Chernovskiia
 1
  • Chironomus
 0
  • Cladopelma
 1
  • Cladotanytarsus
 2
  • Clinotanypus
 1
  • Coelotanypus
1
  • Conchapelopia
 2
  • Corynoneura
2
  • Cricotopus (C.) tremulus-gp
3
  • Cricotopus (C.) trifascia
 3
  • Cricotopus (C.) (others)
 2
  • Cricotopus (Isocladius)
 0
  • Cryptochironomus
 1
  • Cryptotendipes
 2
  • Demicryptochironomus
 1
  • Diamesa
 3
  • Dicrotendipes
 0
  • Diplocladius
 2
  • Doncricotopus
 3
  • Einfeldia
 0
  • Endochironomus
 0
  • Epoicocladius
 2
  • Eukiefferiella
 3
  • Glyptotendipes
 0
  • Harnischia
 1
  • Heleniella
 4
  • Helopelopia
 3
  • Heterotanytarsus
 0
  • Heterotrissocladius hirtapex
 2
  • Heterotrissocladius (others)
 1
  • Hydrobaenus
1
  • Labrundinia
1
  • Larsia
1
  • Lauterbourniella
 0
  • Limnophyes
 1
  • Lipiniella
 1
  • Macropelopia
 3
  • Meropelopia
3
  • Metriocnemus
 3
  • Microchironomus
 1
  • Microcricotopus
 1
  • Micropsectra
 3
  • Microtendipes
2
  • Monodiamesa
 1
  • Nanocladius
 3
  • Natarsia
3
  • Nilotanypus
 2
  • Nilothauma
 1
  • Odontomesa
 2
  • Orthocladius
 ---
  • Pagastia
 3
  • Pagastiella
 0
  • Parachaetocladius
 3
  • Parachironomus
 1
  • Paracladopelma doris
 3
  • Paracladopelma doris-gp
 2
  • Paracladopelma galaptera
 0
  • Paracladopelma nais
 2
  • Paracladopelma nereis
 3
  • Paracladopelma undine
 2
  • Paracladopelma winnelli
 2
  • Parakiefferiella
 2
  • Paralauterborniella
 0
  • Parametriocnemus
 3
  • Paratanytarsus
 1
  • Paratendipes
 2
  • Pentaneura
 2
  • Phaenopsectra
 1
  • Polypedilum albicorne
 3
  • Polypedilum aviceps
 3
  • Polypedilum convictum
 2
  • Polypedilum fallax
 1
  • Polypedilum halterale
 0
  • Polypedilum illinoense
 1
  • Polypedilum laetum
 2
  • Polypedilum nubeculosum
 2
  • Polypedilum scalaenum
 1
  • Polypedilum trigonus
 0
  • Polypedilum tritum
 0
  • Potthastia
 1
  • Procladius
 0
  • Prodiamesa
3
  • Protanypus
 0
  • Psectrocladius
 1
  • Psectrotanypus
 0
  • Pseudochironomus
 1
  • Rheocricotopus
 2
  • Rheopelopia
 3
  • Rheotanytarsus
3
  • Robackia
 2
  • Saetheria
 2
  • Stempellina
 2
  • Stempellinella
 3
  • Stenochironomus
 2
  • Stictochironomus
 2
  • Sympotthastia
 3
  • Syndiamesa
 3
  • Synorthocladius
 3
  • Tanypus
 1
  • Tanytarsus
 2
  • Thienemanniella
 2
  • Thienemannimyia
 2
  • Tribelos
 1
  • Trissopelopia
2
  • Tvetenia
 2
  • Xenochironomus
 2
  • Xylotopus
 2
  • Zalutschia
 0
  • Zavrelimyia
2
    Culicidae
 0
    Dixidae
 0
    Dolichopodidae
 2
    Empididae
 2
    Ephydridae
 1
    Muscidae
 1
    Psychodidae
 0
    Ptychopteridae
 1
    Simuliidae
 2
    Stratiomyidae
 0
    Syrphidae
 0
    Tabanidae:
  • Chrysops
 2
  • Tabanus
 0
    Tipulidae:
  • Antocha
 3
  • Cryptolabis
 4
  • Dicranota
 3
  • Erioptera
 1
  • Helius
 1
  • Hexatoma
 2
  • Limnophila
 2
  • Limonia
 2
  • Ormosia
 3
  • Pedicia
 3
  • Pilaria
 1
  • Pseudolimnophila
 3
  • Tipula
 ---
Crustaceans:
AMPHIPODS:
    Crangonyctidae:
  • Crangonyx pseudogracilis
 3
  • Crangonyx rivularis
 3
  • Crangonyx (others)
 2
    Gammaridae:
  • Gammarus fasciatus
 2
  • Gammarus lacustris
 3
  • Gammarus pseudolimneus
 3
    Talitridae:
  • Hyallela
 2
CRAYFISH:
    Cambaridae:
  • Cambarus
 1
  • Orconectes
 2
    Palaemonetidae:
  • Palaemonetes
 3
ISOPODS:
    Asellidae:
  • Caecidotea
 1
  • Lirceus
 2
Molluscs:
BIVALVES:
    Dreissenidae:
  • Dreissena
 0
    Sphaeriidae:
  • Musculium lacustre
 1
  • Musculium partumeium
 1
  • Musculium securis
 1
  • Musculium transversum
 2
  • Pisidium
 ---
  • Sphaerium fabale
 3
  • Sphaerium occidentale
 0
  • Sphaerium rhomboideum
 1
  • Sphaerium simile
 1
  • Sphaerium striatinum
 2
    Unionidae:
  • Actinonaias carinata
 2
  • Actinonaias ligamentia
 3
  • Alasmidonta marginata
 3
  • Alasmidonta viridis
 3
  • Amblema plicata
 2
  • Anodontoides ferussacianus
 3
  • Carunculina parva
 1
  • Cyclonaias tuberculata
 2
  • Elliptio dilatata
 1
  • Epioblasma (=Dysnomia)
 2
  • Fusconaia flava
 1
  • Lampsilis cardium
 3
  • Lampsilis fasciola
 3
  • Lampsilis radiata
 1
  • Lampsilis ventricosa
 1
  • Lasmigona complanata
 1
  • Lasmigona compressa
 3
  • Lasmigona costata
 2
  • Leptodea fragilis
 1
  • Ligumia nasuta
 0
  • Ligumia recta
 2
  • Obliquaria reflexa
 1
  • Obovaria subrotunda
 2
  • Pleurobema coccineum
 1
  • Proptera alata
 0
  • Ptychobranchus fasciolaris
 3
  • Pyganodon (=Anodonta)
 1
  • Quadrula pustulosa
 1
  • Quadrula quadrula
 2
  • Simpsoniconcha ambigua
 2
  • Strophitus undulatus
 3
  • Truncilla
2
  • Villosa fabalis
 2
  • Villosa iris
 2
SNAILS:
    Ancylidae:
  • Ferrissia
 2
    Bithyniidae:
  • Bithynia
 1
    Hydrobiidae:
  • Amnicola
 2
  • Birgella (=Somatogyrus)
 2
  • Cincinnatia
 1
  • Fontigens
 3
  • Potamogyrus
 1
  • Probythinella
 2
    Lymnaeidae:
  • Bulimnea
 1
  • Fossaria
 1
  • Lymnaea
 1
  • Pseudosuccinea
 0
  • Radix
 1
  • Stagnicola
 0
    Physidae:
  • Physella
 0
    Planorbidae:
  • Gyraulus
 1
  • Heliosoma
 1
  • Planorbella
 0
  • Planorbula
 1
  • Promenetus
 2
    Pleuroceridae:
  • Elimia (=Goniobasis)
 2
  • Pleurocera
1
    Valvatidae:
  • Valvata
 2
    Viviparidae:
  • Campeloma
 1
  • Cipangopaludina
 1
  • Viviparus
 1
Annelids:
LEECHES:
    Erpobdellidae:
  • Dina dubia
1
  • Dina parva
 0
  • Erpobdella
 1
  • Mooreobdella
 2
  • Nephelopsis
 2
    Hirudinidae:
  • Haemopsis
 1
  • Macrobdella
 0
    Glossiphoniidae:
  • Glossiphonia
 2
  • Helobdella elongata
 1
  • Helobdella fusca
 2
  • Helobdella papillata
1
  • Helobdella stagnalis
 2
  • Helobdella triserialis
 2
  • Placobdella
1
WORMS:
    Lumbriculidae
 4
    Tubificidae:
  • Aulodrilus
 2
  • Bothrioneurum
2
  • Branchiura
 0
  • Ilyodrilus
 0
  • Isochaetides curvisetosus
 3
  • Isochaetides freyi
1
  • Limnodrilus
0
  • Potamothrix bavaricus
 2
  • Potamothrix moldaviensis
 2
  • Potamothrix vejdovskyi
 2
  • Quistadrilus
 0
  • Rhyacodrilus
 3
  • Spirosperma
 1
  • Tasserkidrilus
 2
  • Tubifex
 0
Platyhelminthes:
FLATWORMS:
    Neorhadocoela
 1
    Tricladida
 3

If the density of organisms is < 25 per 0.05 sq. m. then:

Cheumatopsyche 1
Orthocladius 1
Pisidium 1