📍 C8: Loudwater (trout rise)

River: Chess Catchment: Colne Filter(s): 89

Your Site at a Glance

244
Species Detected
175
Genera Identified
104
Families Found
216,206
DNA Sequences

How Your Site Compares

Metric Your Site Chess Average Study Average
Species 244 197 206
Genera 175 146 151
Families 104 84 83
EPT Families 8 6 6

Rank 4 of 10 on Chess Rank 29 of 81 in study

🌊 Water Quality Indicators

Good

BMWP score: 126 (Very Good) — ASPT score: 6.0 (Good)

21 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)
54 (22.1%)
2. Naididae (Aquatic Oligochaetes)
36 (14.8%)
3. Lumbricidae (Common Earthworms)
8 (3.3%)
4. Simuliidae (Black Flies)
5 (2.0%)
5. Cyprinidae (Carp and Allies)
5 (2.0%)
6. Salmonidae (Salmon and Trout)
4 (1.6%)
7. Hypogastruridae (Hypogastrurid Springtails)
3 (1.2%)
8. Enchytraeidae (Potworms)
3 (1.2%)
9. Sphaeroceridae (Small Dung Flies)
3 (1.2%)
10. Anatidae (Ducks, Geese, and Swans)
3 (1.2%)
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
19/33 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

11 fish species detected (5 families, 43 ESVs)
SpeciesFamilyESVs
Phoxinus phoxinus (Minnow) Cyprinidae 5
Squalius cephalus (Chub) Cyprinidae 4
Salmo trutta (Brown Trout / Sea Trout) Salmonidae 4
Leuciscus leuciscus (Dace) Cyprinidae 3
Barbatula barbatula (Stone Loach) Nemacheilidae 3
Gasterosteus aculeatus (Three-spined Stickleback) Gasterosteidae 2
Gobio gobio (Gudgeon) Cyprinidae 2
Thymallus aeliani Salmonidae 2
Rutilus frisii Cyprinidae 2
Cottus bairdii Cottidae 1
Oncorhynchus gorbuscha (Pink Salmon) Salmonidae 1

🪰 EPT Species (Mayflies, Stoneflies & Caddisflies)

10 EPT species detected (8 families, 31 ESVs — E:6 / P:0 / T:4)
SpeciesFamilyESVs
Ephemeroptera (Mayflies)
Serratella ignita (Blue Winged Olive) Ephemerellidae 6
Baetis vernus (Medium Olive) Baetidae 4
Procloeon pennulatum (Large Spurwing) Baetidae 4
Ephemera danica (The Mayfly) Ephemeridae 3
Baetis rhodani (Large Dark Olive) Baetidae 2
Paraleptophlebia submarginata (Turkey Brown) Leptophlebiidae 2
Trichoptera (Caddisflies)
Glyphotaelius pellucidus (Northern Caddisflies) Limnephilidae 7
Silo nigricornis (Humpless Case-maker Caddisflies) Goeridae 1
Rhyacophila dorsalis (Free-living Caddisflies) Rhyacophilidae 1
Sericostoma personatum (Sericostomatid Caddisflies) Sericostomatidae 1

🔗 Your Ecological Twin

Most similar site: M10 - Denham Country Park (downstream site)
River: Misbourne (different river)
Similarity: 44% of species shared
Download Data

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

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