📍 MM3: Kimpton Mill (upstream site)

River: Mimram Catchment: Upper Lea (Hertfordshire) Filter(s): 52

Your Site at a Glance

181
Species Detected
135
Genera Identified
69
Families Found
896,043
DNA Sequences

How Your Site Compares

Metric Your Site Mimram Average Study Average
Species 181 204 206
Genera 135 151 151
Families 69 77 83
EPT Families 6 8 6

Rank 7 of 10 on Mimram Rank 50 of 81 in study

🌊 Water Quality Indicators

Good

BMWP score: 78 (Good) — ASPT score: 5.2 (Good)

15 scoring macroinvertebrate families detected

Clean water with slight impacts; a healthy community of macroinvertebrate families is present.

🔍 Notable Findings

Conservation Species:

Invasive Species:

🦋 Top 10 Families at Your Site

1. Chironomidae (Non-biting Midges)
43 (23.8%)
2. Naididae (Aquatic Oligochaetes)
26 (14.4%)
3. Lumbricidae (Common Earthworms)
9 (5.0%)
4. Anatidae (Ducks, Geese, and Swans)
6 (3.3%)
5. Enchytraeidae (Potworms)
5 (2.8%)
6. Hydridae (Freshwater Hydras)
4 (2.2%)
7. Cyclopidae (Cyclopoid Copepods)
4 (2.2%)
8. Limoniidae (Limoniid Crane Flies)
4 (2.2%)
9. Lumbriculidae (Aquatic Earthworms)
3 (1.7%)
10. Chydoridae (Chydorid Water Fleas)
3 (1.7%)
Taxonomic composition

🪲 Extended Riverfly Taxa

1 Flatworms 18Dragonflies and Damselflies
2 Freshwater Snails 19Water Boatmen
3 Limpets 20Other Water Bugs
4 Bivalves 21Water Beetles
5 Aquatic Worms 22Alderflies
6 Leeches 23Caseless Caddisflies - Green Sedge
7 Crayfish 24Caseless Caddisflies - Net Spinners
8 Water Hoglouse 25Caseless Caddisflies - Non-Gilled
9 Freshwater Shrimps 26Cased Caddisflies - Hood Case-Maker
10 Invasive Non-Native Shrimps 27Cased Caddisflies - Weighted Case-Maker
11 Mayflies - Angler's Curse 28Cased Caddisflies - Bush Tailed Caddisfly
12 Mayflies - Olives 29Cased Caddisflies - Other
13 Mayflies - Prong Gilled 30Craneflies
14 Mayflies - Flatbodied 31Blackflies
15 Mayflies - Green Drake 32Non-Biting Midges
16 Mayflies - Blue-Winged Olive 33Water Snipe Flies
17 Stoneflies
16/33 Extended Riverfly taxa detected

Note: The Extended Riverfly Monitoring Initiative calculates scores based on abundance categories, which cannot be determined from eDNA presence/absence data. This checklist shows which taxa groups were detected but does not constitute an official ARMI score.

🐟 Fish Species

4 fish species detected (5 families, 26 ESVs)
SpeciesFamilyESVs
Salmo trutta (Brown Trout / Sea Trout) Salmonidae 6
Gasterosteus aculeatus (Three-spined Stickleback) Gasterosteidae 6
Cottus bairdii Cottidae 2
Squalius cephalus (Chub) Cyprinidae 1

🪰 EPT Species (Mayflies, Stoneflies & Caddisflies)

9 EPT species detected (6 families, 18 ESVs — E:3 / P:1 / T:5)
SpeciesFamilyESVs
Ephemeroptera (Mayflies)
Paraleptophlebia submarginata (Turkey Brown) Leptophlebiidae 4
Baetis rhodani (Large Dark Olive) Baetidae 3
Baetis vernus (Medium Olive) Baetidae 2
Plecoptera (Stoneflies)
Nemurella pictetii (Pictet's Stonefly) Nemouridae 2
Trichoptera (Caddisflies)
Glyphotaelius pellucidus (Northern Caddisflies) Limnephilidae 2
Limnephilus extricatus (Northern Caddisflies) Limnephilidae 2
Silo nigricornis (Humpless Case-maker Caddisflies) Goeridae 1
Lype phaeopa (Tube-case Caddisflies) Psychomyiidae 1
Lype reducta (Tube-case Caddisflies) Psychomyiidae 1

🔗 Your Ecological Twin

Most similar site: M8 - over the Misbourne
River: Misbourne (different river)
Similarity: 35% of species shared
Download Data

181 Species detected at this site — CSV format, opens in Excel

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