📍 M9: Higher Denham

River: Misbourne Catchment: Colne Filter(s): 95

Your Site at a Glance

240
Species Detected
170
Genera Identified
96
Families Found
955,403
DNA Sequences

How Your Site Compares

Metric Your Site Misbourne Average Study Average
Species 240 238 206
Genera 170 168 151
Families 96 90 83
EPT Families 6 6 6

Rank 6 of 10 on Misbourne Rank 33 of 81 in study

🌊 Water Quality Indicators

Good

BMWP score: 110 (Very Good) — ASPT score: 5.5 (Good)

20 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)
57 (23.8%)
2. Naididae (Aquatic Oligochaetes)
27 (11.2%)
3. Syrphidae (Hoverflies)
8 (3.3%)
4. Lumbricidae (Common Earthworms)
7 (2.9%)
5. Psychodidae (Moth Flies)
5 (2.1%)
6. Tipulidae (Crane Flies)
4 (1.7%)
7. Simuliidae (Black Flies)
4 (1.7%)
8. Empididae (Dance Flies)
4 (1.7%)
9. Gasterosteidae (Sticklebacks)
4 (1.7%)
10. Anatidae (Ducks, Geese, and Swans)
4 (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
17/33 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

7 fish species detected (7 families, 43 ESVs)
SpeciesFamilyESVs
Gasterosteus aculeatus (Three-spined Stickleback) Gasterosteidae 7
Barbatula barbatula (Stone Loach) Nemacheilidae 5
Cottus bairdii Cottidae 4
Salmo trutta (Brown Trout / Sea Trout) Salmonidae 2
Phoxinus phoxinus (Minnow) Cyprinidae 2
Rutilus frisii Cyprinidae 1
Esox lucius (Pike) Esocidae 1

🪰 EPT Species (Mayflies, Stoneflies & Caddisflies)

11 EPT species detected (6 families, 23 ESVs — E:5 / P:1 / T:5)
SpeciesFamilyESVs
Ephemeroptera (Mayflies)
Baetis rhodani (Large Dark Olive) Baetidae 3
Cloeon dipterum (Pond Olive) Baetidae 3
Paraleptophlebia submarginata (Turkey Brown) Leptophlebiidae 3
Baetis scambus (Small Dark Olive) Baetidae 1
Baetis vernus (Medium Olive) Baetidae 1
Plecoptera (Stoneflies)
Nemurella pictetii (Pictet's Stonefly) Nemouridae 2
Trichoptera (Caddisflies)
Glyphotaelius pellucidus (Northern Caddisflies) Limnephilidae 3
Sericostoma personatum (Sericostomatid Caddisflies) Sericostomatidae 3
Limnephilus extricatus (Northern Caddisflies) Limnephilidae 2
Silo nigricornis (Humpless Case-maker Caddisflies) Goeridae 1
Limnephilus marmoratus (Northern Caddisflies) Limnephilidae 1

🔗 Your Ecological Twin

Most similar site: M10 - Denham Country Park (downstream site)
River: Misbourne (same river)
Similarity: 45% of species shared
Download Data

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

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