Explore

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

Derwent River d/s Meadowbank Dam LDER01

Source	Department of Primary Industries, Parks, Water and Environment
Latest Sample Date	23-11-1998
Taxa count ORDER	9
Taxa count FAMILY	15
Taxa count ALT	15
Mayflies present?	0
	ORDER	FAMILY	ALT
SIGNAL	3.4	3.8	3.2
Weighted SIGNAL	4.1		3.8

Waterbug Land Use

	Category	ALUM Categories	Percent of upstream catchment	Area
	Natural	1.1.1 Strict nature reserves, 1.1.2 Wilderness area, 1.1.3 National park, 1.1.4 Natural feature protection, 1.1.5 Habitat/species management area, 1.1.6 Protected landscape, 1.1.7 Other conserved area, 1.2.0 Managed resource protection, 1.2.1 Biodiversity	38.21%	249,622,455,471m²
	Forestry	2.2.0 Production native forests, 3.1.0 Plantation forests	19.11%	124,855,977,190m²
	Minimal Use	1.2.5 Traditional indigenous uses, 1.3.0 Other minimal use, 1.3.3 Residual native cover, 2.1.0 Grazing native vegetation	14.76%	96,462,323,494m²
	Pastoral Farming	3.2.0 Grazing modified pastures, 3.2.1 Native/exotic pasture mosaic, 3.2.2 Woody fodder plants, 3.2.3 Pasture legumes, 3.2.4 Pasture legume/grass mixtures, 4.2.0 Grazing irrigated modified pastures	14.64%	95,648,583,419m²
	Water	6.1.0 Lake, 6.1.1 Lake - conservation, 6.1.2 Lake - production, 6.2.0 Reservoir/dam, 6.2.2 Water storage - intensive use/farm dams, 6.3.0 River, 6.3.1 River - conservation, 6.4.0 Channel/aqueduct, 6.5.0 Marsh/wetland, 6.5.4 Marsh/wetland - saline	8.00%	52,280,362,361m²
	Forestry Plantation	3.1.1 Hardwood plantation forestry, 3.1.2 Softwood plantation forestry	3.58%	23,403,214,562m²
	Residential And Infrastructure	5.4.1 Urban residential, 5.4.2 Rural residential with agriculture, 5.4.3 Rural residential without agriculture, 5.4.4 Remote communities, 5.4.5 Farm buildings/infrastructure, 5.5.0 Services, 5.5.2 Public services, 5.5.3 Recreation and culture, 5.6.2 Hydro electricity generation, 5.6.5 Electricity substations and transmission, 5.7.2 Roads	0.81%	5,297,685,387m²
	Arable Farming	3.3.0 Cropping, 4.3.0 Irrigated cropping, 4.3.7 Irrigated alkaloid poppies, 4.4.0 Irrigated perennial horticulture, 4.4.4 Irrigated vine fruits, 4.4.5 Irrigated shrub berries and fruits, 4.4.9 Irrigated grapes	0.67%	4,390,196,455m²
	Unknown	3.6.0 Land in transition, 3.6.1 Degraded land	0.20%	1,311,234,007m²
	Mining	5.8.1 Mines, 5.8.2 Quarries	0.01%	63,249,229m²
	Intensive Pastoral Farming	5.2.1 Dairy sheds and yards, 5.2.5 Aquaculture, 5.2.7 Saleyards/stockyards	0.00%	6,999,915m²
	Waste Management	5.9.0 Waste treatment and disposal, 5.9.5 Sewage/sewerage	0.00%	5,499,933m²
	Industrial	5.5.1 Commercial services	0.00%	1,999,976m²
Show minor land uses 7
				6,533,497,814m²

Waterbug sample history

Sampled on 23 November 1998

Taxa	Abundance	SIGNALT Grade
Gastropoda KG	16	1
Hydrobiidae (Unident.) KG029999	10
Physidae (Unident.) KG089999	6
Oligochaeta LO	10	2
Oligochaeta (Unident.) LO999999	10
Amphipoda OP	150	3
Ceinidae (Unident.) OP029999	135

Paramelitidae (Unident.) OP069999	15

Isopoda OR	2	2
Janiridae (Unident.) OR189999	2

Unknown OT	32
Atyidae (Unident.) OT019999	32

Diptera QD	18	3
Tanypodinae (Unident.) QDAE9999	14
Orthocladiinae (Unident.) QDAF9999	2
Chironominae (Unident.) QDAJ9999	2
Hemiptera QH	5	2
Corixidae (Unident.) QH659999	5
Plecoptera QP	1	10
Gripopterygidae (Unident.) QP039999	1
Trichoptera QT	17	8
Atriplectididae (Unident.) QT239999	3
Calamoceratidae (Unident.) QT249999	9
Leptoceridae (Unident.) QT259999	5

SIGNALT	3.4
	ORDER
Weighted SIGNALT	2.9