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Merri Creek @ O'Hearns Rd, Somerton ME_YMR190

Melbourne Yarra River Yarra River Merri Creek 29_6 Yarra River

Downstream
Acrossstream
Upstream
Site Visit
03-06-2020
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.02 8 11.9 13.9 7.2 580 0 74.2 65
15-12-2016
Approved
3 Photo(s) Physical Chemical Water Bugs
a. Family Caenidae (caenids - Mayfly nymph)
a. Family Caenidae (caenids - Mayfly nymph)
Quantity: 3 Score: 4
d. Family Simuliidae (black fly larvae)
d. Family Simuliidae (black fly larvae)
Quantity: 5 Score: 5
e. Phylum Turbellaria ( flatworms)
e. Phylum Turbellaria ( flatworms)
Quantity: 2 Score: 1
f. Family Baetidae (baetids -Mayfly nymph)
f. Family Baetidae (baetids -Mayfly nymph)
Quantity: 18 Score: 5
f. Order Amphipoda (scuds, sideswimmers)
f. Order Amphipoda (scuds, sideswimmers)
Quantity: 10 Score: 3
j. Family Dytiscidae, various genera (little diving beetles)
j. Family Dytiscidae, various genera (little diving beetles)
Quantity: 5 Score: 1
l. Family Culicidae (mosquito larvae, wrigglers)
l. Family Culicidae (mosquito larvae, wrigglers)
Quantity: 4 Score: 1
p. Family Leptoceridae Unidentified, various genera (Caddis fly larvae)
p. Family Leptoceridae Unidentified, various genera (Caddis fly larvae)
Quantity: 20 Score: 6
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
17-04-2013
Approved
0 Photo(s) Physical Chemical Water Bugs
a. Family Hydropsychidae (net spinning caddis)
a. Family Hydropsychidae (net spinning caddis)
Quantity: 50 Score: 6
a. Family Psephenidae, Genus Sclerocyphon (water pennies)
a. Family Psephenidae, Genus Sclerocyphon (water pennies)
Quantity: 3 Score: 6
d. Family Simuliidae (black fly larvae)
d. Family Simuliidae (black fly larvae)
Quantity: 100 Score: 5
e. Phylum Turbellaria ( flatworms)
e. Phylum Turbellaria ( flatworms)
Quantity: 1 Score: 1
f. Order Amphipoda (scuds, sideswimmers)
f. Order Amphipoda (scuds, sideswimmers)
Quantity: 100 Score: 3
t. Family Leptoceridae, Genus Notalina (Headbanger caddis)
t. Family Leptoceridae, Genus Notalina (Headbanger caddis)
Quantity: 3 Score: 6
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 11.14 14.6 21 8.39 1116 0.07 108 9
07-03-2013
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 8.23 21.6 30.3 8.2 2988 0.05 91.8 9
20-12-2012
Approved
0 Photo(s) Physical Chemical Water Bugs
a. Family Hydropsychidae (net spinning caddis)
a. Family Hydropsychidae (net spinning caddis)
Quantity: 1 Score: 6
f. Order Amphipoda (scuds, sideswimmers)
f. Order Amphipoda (scuds, sideswimmers)
Quantity: 40 Score: 3
h. Family Dytiscidae, (taper-tailed tigers)
h. Family Dytiscidae, (taper-tailed tigers)
Quantity: 1 Score: 2
l. Family Dytiscidae, various genera (stealth diving beetles)
l. Family Dytiscidae, various genera (stealth diving beetles)
Quantity: 1 Score: 1
p. Family Leptoceridae Unidentified, various genera (Caddis fly larvae)
p. Family Leptoceridae Unidentified, various genera (Caddis fly larvae)
Quantity: 50 Score: 6
t. Family Leptoceridae, Genus Notalina (Headbanger caddis)
t. Family Leptoceridae, Genus Notalina (Headbanger caddis)
Quantity: 5 Score: 6
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10.2 19.8 20.6 8.24 1766 0.08 110 9
10-08-2012
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.5 10 11.2 15.3 7.6 543 0.15 93 80
07-06-2012
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10 14.4 8.17 940 0.2 60
16-01-2012
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
6.88 20.8 26 8.3 6344 0.06 78.1 0
14-09-2011
Approved
0 Photo(s) Physical Chemical Water Bugs
c. Family Coloburiscidae, Genus Coloburiscoides (stream horses - Mayfly nymph)
c. Family Coloburiscidae, Genus Coloburiscoides (stream horses - Mayfly nymph)
Quantity: Score: 8
f. Order Amphipoda (scuds, sideswimmers)
f. Order Amphipoda (scuds, sideswimmers)
Quantity: Score: 3
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10 12.3 13.3 8.5 1320 0.05 14
14-09-2011
Approved
1 Photo(s) Physical Chemical Water Bugs
Caddis-fly Larvae (Trichoptera)
Caddis-fly Larvae (Trichoptera)
Quantity: 1 Score: 7
Mayfly nymph (Ephemeroptera)
Mayfly nymph (Ephemeroptera)
Quantity: 7 Score: 7
Damselfly Nymph (Odonata)
Damselfly Nymph (Odonata)
Quantity: 1 Score: 6
Aquatic Beetles - Diving Beetles, Whirligig Beetles (Coleoptera)
Aquatic Beetles - Diving Beetles, Whirligig Beetles (Coleoptera)
Quantity: 1 Score: 3
Side Swimmer/Scud (Amphipoda)
Side Swimmer/Scud (Amphipoda)
Quantity: 10 Score: 4
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)
Quantity: 3 Score: 4
Biting Midge Larvae (Diptera)
Biting Midge Larvae (Diptera)
Quantity: 17 Score: 2
Segmented Worm (Oligochaeta)
Segmented Worm (Oligochaeta)
Quantity: 4 Score: 1
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10 12.3 13.7 8.5 1580 0.05 12
04-08-2011
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 12.5 21.3 8.3 1.177 0.09 17
21-04-2011
Approved
2 Photo(s) Physical Chemical Water Bugs
Caddis-fly Larvae (Trichoptera)
Caddis-fly Larvae (Trichoptera)
Quantity: 4 Score: 7
Mayfly nymph (Ephemeroptera)
Mayfly nymph (Ephemeroptera)
Quantity: 1 Score: 7
Damselfly Nymph (Odonata)
Damselfly Nymph (Odonata)
Quantity: 6 Score: 6
Freshwater Shrimp/Prawn (Atyidae)
Freshwater Shrimp/Prawn (Atyidae)
Quantity: 1 Score: 5
Freshwater Snails (Gastropoda)
Freshwater Snails (Gastropoda)
Quantity: 25 Score: 3
Side Swimmer/Scud (Amphipoda)
Side Swimmer/Scud (Amphipoda)
Quantity: 10 Score: 4
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)
Quantity: 30 Score: 4
Biting Midge Larvae (Diptera)
Biting Midge Larvae (Diptera)
Quantity: 15 Score: 2
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.02 8 19.1 23.1 8.2 420 0.1 86.52 6
07-03-2011
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10 0.5 21.6 29.3 8.5 1360 0
18-01-2011
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 8 0.4 20.7 20.6 7.53 420.7 38
08-10-2010
Approved
0 Photo(s) Physical Chemical Water Bugs
d. Family Hydrophilidae, Genus Helochares (Beetle adult)
d. Family Hydrophilidae, Genus Helochares (Beetle adult)
Quantity: Score: 2
Freshwater shrimp
Freshwater shrimp
Quantity: Score: 5
Caddis-fly Larvae (Trichoptera)
Caddis-fly Larvae (Trichoptera)
Quantity: Score: 7
Mayfly nymph (Ephemeroptera)
Mayfly nymph (Ephemeroptera)
Quantity: Score: 7
Stonefly nymph (Plecoptera)
Stonefly nymph (Plecoptera)
Quantity: Score: 8
Damselfly Nymph (Odonata)
Damselfly Nymph (Odonata)
Quantity: Score: 6
Dragonfly Nymph (Odonata)
Dragonfly Nymph (Odonata)
Quantity: Score: 6
Freshwater Mussel (Bivalvia)
Freshwater Mussel (Bivalvia)
Quantity: Score:
Freshwater slater (Isopoda)
Freshwater slater (Isopoda)
Quantity: Score: 5
Toebiters Dobsonflies (Megaloptera)
Toebiters Dobsonflies (Megaloptera)
Quantity: Score: 6
Water mites (Acarina)
Water mites (Acarina)
Quantity: Score: 5
Yabbies/Marron/Gilgie Freshwater (Decapoda)
Yabbies/Marron/Gilgie Freshwater (Decapoda)
Quantity: Score: 5
Beetle larvae (Coleoptera)
Beetle larvae (Coleoptera)
Quantity: Score: 4
Freshwater Snails (Gastropoda)
Freshwater Snails (Gastropoda)
Quantity: Score: 3
Hydra (Hydrozoa)
Hydra (Hydrozoa)
Quantity: Score: 4
Leeches (Hirudinea)
Leeches (Hirudinea)
Quantity: Score: 3
Roundworms (Nematoda)
Roundworms (Nematoda)
Quantity: Score: 3
Side Swimmer/Scud (Amphipoda)
Side Swimmer/Scud (Amphipoda)
Quantity: Score: 4
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)
True Bugs - Backswimmers, Water-boatmen, Water-striders (Hemiptera)
Quantity: Score: 4
Biting Midge Larvae (Diptera)
Biting Midge Larvae (Diptera)
Quantity: Score: 2
Mosquito Larvae (Diptera)
Mosquito Larvae (Diptera)
Quantity: Score: 2
Non Biting Midge Larvae - Bloodworms (Diptera)
Non Biting Midge Larvae - Bloodworms (Diptera)
Quantity: Score:
Segmented Worm (Oligochaeta)
Segmented Worm (Oligochaeta)
Quantity: Score: 1
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10 0.02 14.4 14.6 7.9 670 22
25-09-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10 0.15 19.1 21.1 8.4 1050 15
25-09-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 19.1 21.1 8.4 1050 0.15 100 15
22-08-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.02 11.6 13.1 8 720 0.15 75 50
22-08-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.02 8 0.15 11.6 13.1 8 720 50
08-07-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.02 8 0.2 19.1 21.1 8.2 860 15
08-07-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0.02 19.1 21.1 8.2 860 0.2 75 15
16-06-2010
Approved
0 Photo(s) Physical Chemical Water Bugs
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
16-06-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
0 10.41 0.06 8.5 12.3 8.5 1128 0
02-05-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
16.7 14.5 10
21-03-2010
Approved
Physical Chemical
Ammon-Nit mg/L NH3-N N mg/L NH4+ D.O mg/L FrP mg/L P Nitrate-Nit mg/L N Water ° C Air ° C pH pH Units EC µS/cm rP mg/L P D.O. % Turb NTU
20 19.3 30
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