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NOTICE: SIGNALT Calculations are currently running through final testing and may be inaccurate until completed.

DOWNFALL CREEK AT BILSEN RD VIRGINIA 1422001

Source MIV
Latest Sample Date 13-09-1999
Taxa count ORDER 11
Taxa count FAMILY 17
Taxa count ALT 17
Mayflies present? 0
ORDER FAMILY ALT
SIGNAL 2 2.4 1.5
Weighted SIGNAL 3.4 2.2

Waterbug Land Use

Category ALUM Categories Percent of upstream catchment Area
  Residential And Infrastructure 5.4.1 Urban residential, 5.4.3 Rural residential without agriculture, 5.5.0 Services, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.6.7 Water extraction and transmission 88.69% 1,403,438,509m2
  Industrial 5.3.0 Manufacturing and industrial, 5.5.1 Commercial services 6.41% 101,495,553m2
  Natural 1.1.7 Other conserved area 3.40% 53,747,645m2
Show minor land uses 2
15,824,307m2

Waterbug sample history

Taxa Abundance SIGNALT Grade
Turbellaria IF 14 2
Dugesiidae (Unident.) IF619999
 14
Gastropoda KG 12 1
Hydrobiidae (Unident.) KG029999
 10
Thiaridae (Unident.) KG049999
 1
Lymnaeidae (Unident.) KG059999
 1
Hirudinea LH 2 1
Glossiphoniidae (Unident.) LH019999
 2
Oligochaeta LO 18 2
Oligochaeta (Unident.) LO999999
 18
Unknown OH 15
Ostracoda (Unident.) OH999999
 15
Unknown OJ 20
Copepoda (Unident.) OJ999999
 20
Amphipoda OP 3 3
Talitridae sp.(Unident.) OP019999
 3
Talitridae sp.(Unident.)
Talitridae sp.(Unident.)
Talitridae sp.(Unident.)
Coleoptera QC 15 5
Dytiscidae (Unident.) QC099999
 5
Hydrophilidae (Unident.) QC119999
 9
Hydrophilidae (Unident.)
Hydrophilidae (Unident.)
Hydraenidae (Unident.) QC139999
 1
Hydraenidae (Unident.)
Diptera QD 21 3
Tanypodinae (Unident.) QDAE9999
 1
Chironominae (Unident.) QDAJ9999
 20
Hemiptera QH 1 2
Veliidae (Unident.) QH569999
 1
Odonata QO 12 3
Coenagrionidae (Unident.) QO029999
 10
Corduliidae (Unident.) QO169999
 2
ORDER
SIGNALT 2.0
Weighted SIGNALT 2.1
Taxa Abundance SIGNALT Grade
Turbellaria IF 8 2
Dugesiidae (Unident.) IF619999
 8
Gastropoda KG 6 1
Hydrobiidae (Unident.) KG029999
 5
Planorbidae (Unident.) KG079999
 1
Unknown OH 10
Ostracoda (Unident.) OH999999
 10
Unknown OJ 10
Copepoda (Unident.) OJ999999
 10
Unknown QA 1
Collembola (Unident.) QA999999
 1
Coleoptera QC 1 5
Dytiscidae (Unident.) QC099999
 1
Diptera QD 10 3
Chironominae (Unident.) QDAJ9999
 10
Hemiptera QH 2 2
Veliidae (Unident.) QH569999
 2
Odonata QO 10 3
Coenagrionidae (Unident.) QO029999
 7
Libellulidae (Unident.) QO179999
 3
ORDER
SIGNALT 1.8
Weighted SIGNALT 1.6

   

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