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

Katherine River, at Knott's Crossing EE280798DA28

Source	Department of Environment and Natural Resources (Daly River)
Latest Sample Date	01-01-1998
Taxa count ORDER	12
Taxa count FAMILY	28
Taxa count ALT	44
Mayflies present?	36
	ORDER	FAMILY	ALT
SIGNAL	3.4	3.9	2.4
Weighted SIGNAL	5.2	5.1	4

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Minimal Use	1.2.5 Traditional indigenous uses, 1.3.1 Defence land - natural areas, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	72.81%	593,257,391,869m²
	Natural	1.1.3 National park	26.23%	213,748,383,855m²
	Water	6.1.0 Lake, 6.2.2 Water storage - intensive use/farm dams, 6.3.1 River - conservation, 6.5.1 Marsh/wetland - conservation	0.57%	4,634,823,374m²
	Arable Farming	3.3.3 Hay and silage, 4.3.3 Irrigated hay and silage, 4.4.1 Irrigated tree fruits, 4.4.8 Irrigated citrus, 4.5.1 Irrigated seasonal fruits, 4.5.3 Irrigated seasonal vegetables and herbs	0.20%	1,652,776,165m²
	Residential And Infrastructure	5.4.1 Urban residential, 5.4.2 Rural residential with agriculture, 5.4.3 Rural residential without agriculture, 5.4.5 Farm buildings/infrastructure, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.5.4 Defence facilities - urban, 5.6.7 Water extraction and transmission, 5.7.1 Airports/aerodromes, 5.7.2 Roads, 5.7.5 Navigation and communication	0.12%	997,265,788m²
	Pastoral Farming	3.2.1 Native/exotic pasture mosaic, 3.2.5 Sown grasses	0.03%	276,004,369m²
	Unknown	3.6.4 No defined use, 4.6.4 No defined use (irrigation), 5.8.4 Extractive industry not in use	0.02%	137,752,181m²
	Mining	5.8.1 Mines, 5.8.3 Tailings	0.01%	69,501,100m²
	Industrial	5.5.1 Commercial services	0.00%	16,750,265m²
	Forestry Plantation	3.1.1 Hardwood plantation forestry	0.00%	8,500,135m²
	Intensive Arable Farming	5.1.1 Production nurseries	0.00%	4,750,075m²
	Waste Management	5.9.1 Effluent pond, 5.9.2 Landfill	0.00%	4,500,071m²
Show minor land uses 10
				8,148,083,992m²

Waterbug sample history

Sampled on 1 January 1998

Taxa	Abundance	SIGNALT Grade
Bivalvia KP	1	3
Corbiculina sp.(Unident.) KP020199	1
Oligochaeta LO	22	2
Oligochaeta (Unident.) LO999999	22
Acarina MM	7	6
Hydrodroma sp.(Unident.) MM070199	3

Oxus sp.(Unident.) MM090399	1

Monatractides sp.(Unident.) MM100199	1

Recifella sp.(Unident.) MM160599	1

Unionicola sp.(Unident.) MM160699	1

Unknown OH	6
Ostracoda (Unident.) OH999999	6
Unknown OJ	10
Cyclopoida (Unident.) OJ399999	10
Unknown OT	5
Caridina gracilirostris OT010302	2

Caridina serratirostris OT010305	2

Macrobrachium sp.(Unident.) OT020199	1

Coleoptera QC	2	5
Hydrovatus ovalis QC090307	2

Diptera QD	101	3
Culicidae (Unident.) QD079999	4

Ceratopogoninae (Unident.) QD0999I1	18

Tabanidae (Unident.) QD239999	1
Djalmabatista sp.(Unident.) QDAE0699	3
Procladius sp.(Unident.) QDAE0899	2
Nanocladius sp.(Unident.) QDAF0499	4
Cricotopus sp.(Unident.) QDAF1599	5
Stempellinella sp.(Unident.) QDAH0199	6
Stempellina sp.(Unident.) QDAH0299	2
Cladotanytarsus sp.(Unident.) QDAH0399	1
Tanytarsus sp. 1 QDAH04T1	2
Tanytarsus sp. 4 QDAH04T4	26
Tanytarsus sp. 5 QDAH04T5	7
Paratanytarsus sp.(Unident.) QDAH0699	1
Chironomus sp.(Unident.) QDAI0499	16

Dicrotendipes sp.(Unident.) QDAI0699	2
Polypedilum sp.(Unident.) QDAI0899	1
Ephemeroptera QE	36	9
Cloeon sp.(Unident.) QE020299	7
Tasmanocoenis sp.(Unident.) QE080199	5
Wundacaenis dostini QE080202	24
Hemiptera QH	6	2
Mesoveliidae (Unident.) QH529999	1
Hebridae (Unident.) QH539999	2
Veliidae (Unident.) QH569999	3
Odonata QO	11	3
Antipodogomphus sp.(Unident.) QO130199	1
Austrogomphus sp.(Unident.) QO130499	1
Zygoptera (Unident.) QO999997	1
Epiproctophora (Unident.) QO999998	8
Trichoptera QT	33	8
Hellyethira sp.(Unident.) QT030499	5
Ecnomus sp.(Unident.) QT080499	1
Oecetis sp.(Unident.) QT250799	3
Triaenodes sp.(Unident.) QT251099	24

SIGNALT	3.4
	ORDER
Weighted SIGNALT	3.9