📍 R2: Buntingford Watermill (upstream site)

River: Rib Catchment: Upper Lea (Hertfordshire) Filter(s): 44

Your Site at a Glance

96
Species Detected
78
Genera Identified
48
Families Found
701,175
DNA Sequences

How Your Site Compares

Metric Your Site Rib Average Study Average
Species 96 160 206
Genera 78 123 151
Families 48 72 83
EPT Families 2 5 6

Rank 8 of 9 on Rib Rank 71 of 81 in study

🌊 Water Quality Indicators

Poor

BMWP score: 36 (Poor) — ASPT score: 4.5 (Moderate)

8 scoring macroinvertebrate families detected

Indicators suggest polluted or significantly impacted water quality at this site.

🔍 Notable Findings

Conservation Species:

Invasive Species:

🦋 Top 10 Families at Your Site

1. Chironomidae (Non-biting Midges)
20 (20.8%)
2. Naididae (Aquatic Oligochaetes)
8 (8.3%)
3. Syrphidae (Hoverflies)
6 (6.2%)
4. Lumbricidae (Common Earthworms)
5 (5.2%)
5. Simuliidae (Black Flies)
3 (3.1%)
6. Coccinellidae (Ladybird Beetles)
3 (3.1%)
7. Enchytraeidae (Potworms)
2 (2.1%)
8. Staphylinidae (Rove Beetles)
2 (2.1%)
9. Anthomyiidae (Root-maggot Flies)
2 (2.1%)
10. Nemacheilidae (Stone Loaches)
2 (2.1%)
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
11/33 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

6 fish species detected (6 families, 19 ESVs)
SpeciesFamilyESVs
Gasterosteus aculeatus (Three-spined Stickleback) Gasterosteidae 5
Cottus bairdii Cottidae 3
Salmo trutta (Brown Trout / Sea Trout) Salmonidae 3
Barbatula barbatula (Stone Loach) Nemacheilidae 3
Phoxinus phoxinus (Minnow) Cyprinidae 1
Squalius cephalus (Chub) Cyprinidae 1

🪰 EPT Species (Mayflies, Stoneflies & Caddisflies)

2 EPT species detected (2 families, 3 ESVs — E:2 / P:0 / T:0)
SpeciesFamilyESVs
Ephemeroptera (Mayflies)
Baetis rhodani (Large Dark Olive) Baetidae 2
Paraleptophlebia submarginata (Turkey Brown) Leptophlebiidae 1

🔗 Your Ecological Twin

Most similar site: R3 - Aspenden Road Bridge (Buntingford)
River: Rib (same river)
Similarity: 28% of species shared
Download Data

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

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