📍 C7: Chorley Wood pump

River: Chess Catchment: Colne Filter(s): 56

Your Site at a Glance

232
Species Detected
175
Genera Identified
100
Families Found
689,466
DNA Sequences

How Your Site Compares

Metric Your Site Chess Average Study Average
Species 232 197 206
Genera 175 146 151
Families 100 84 83
EPT Families 6 6 6

Rank 5 of 10 on Chess Rank 36 of 81 in study

🌊 Water Quality Indicators

Good

BMWP score: 112 (Very Good) — ASPT score: 5.6 (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)
58 (25.0%)
2. Naididae (Aquatic Oligochaetes)
22 (9.5%)
3. Lumbricidae (Common Earthworms)
5 (2.2%)
4. Carabidae (Ground Beetles)
5 (2.2%)
5. Salmonidae (Salmon and Trout)
5 (2.2%)
6. Simuliidae (Black Flies)
5 (2.2%)
7. Baetidae (Small Mayflies)
4 (1.7%)
8. Gasterosteidae (Sticklebacks)
4 (1.7%)
9. Cyprinidae (Carp and Allies)
4 (1.7%)
10. Psychodidae (Moth Flies)
3 (1.3%)
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 ✓
18/33 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

12 fish species detected (6 families, 100 ESVs)
SpeciesFamilyESVs
Salmo trutta (Brown Trout / Sea Trout) Salmonidae 10
Phoxinus phoxinus (Minnow) Cyprinidae 8
Squalius cephalus (Chub) Cyprinidae 7
Gasterosteus aculeatus (Three-spined Stickleback) Gasterosteidae 7
Barbatula barbatula (Stone Loach) Nemacheilidae 4
Oncorhynchus gorbuscha (Pink Salmon) Salmonidae 4
Thymallus aeliani Salmonidae 4
Leuciscus leuciscus (Dace) Cyprinidae 4
Cottus bairdii Cottidae 2
Anguilla anguilla (European Eel) Anguillidae 1
Gobio gobio (Gudgeon) Cyprinidae 1
Oncorhynchus mykiss (Rainbow Trout) Salmonidae 1

🪰 EPT Species (Mayflies, Stoneflies & Caddisflies)

9 EPT species detected (6 families, 21 ESVs — E:5 / P:1 / T:3)
SpeciesFamilyESVs
Ephemeroptera (Mayflies)
Baetis vernus (Medium Olive) Baetidae 8
Baetis rhodani (Large Dark Olive) Baetidae 3
Paraleptophlebia submarginata (Turkey Brown) Leptophlebiidae 3
Baetis scambus (Small Dark Olive) Baetidae 1
Cloeon dipterum (Pond Olive) Baetidae 1
Plecoptera (Stoneflies)
Nemurella pictetii (Pictet's Stonefly) Nemouridae 1
Trichoptera (Caddisflies)
Glyphotaelius pellucidus (Northern Caddisflies) Limnephilidae 2
Silo nigricornis (Humpless Case-maker Caddisflies) Goeridae 1
Leptocerus tineiformis (Long-horned Caddisflies) Leptoceridae 1

🔗 Your Ecological Twin

Most similar site: C6 - Chenies
River: Chess (same river)
Similarity: 43% of species shared
Download Data

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

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