📍 H6: Colstrope I

River: Hamble Brook Catchment: Thames & Chilterns South Filter(s): 16

Your Site at a Glance

168
Species Detected
136
Genera Identified
82
Families Found
650,964
DNA Sequences

How Your Site Compares

Metric Your Site Hamble Brook Average Study Average
Species 168 110 206
Genera 136 87 151
Families 82 57 83
EPT Families 7 5 6

Rank 1 of 5 on Hamble Brook Rank 56 of 81 in study

🌊 Water Quality Indicators

Good

BMWP score: 92 (Good) — ASPT score: 5.1 (Good)

18 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)
35 (20.8%)
2. Naididae (Aquatic Oligochaetes)
8 (4.8%)
3. Lumbricidae (Common Earthworms)
6 (3.6%)
4. Enchytraeidae (Potworms)
5 (3.0%)
5. Simuliidae (Black Flies)
5 (3.0%)
6. Isotomidae (Isotomid Springtails)
4 (2.4%)
7. Dixidae (Dixid Midges)
3 (1.8%)
8. Muscidae (House Flies)
3 (1.8%)
9. Tomoceridae (Long-horned Springtails)
3 (1.8%)
10. Phalangiidae (Long-legged Harvestmen)
3 (1.8%)
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

5 fish species detected (5 families, 13 ESVs)
SpeciesFamilyESVs
Phoxinus phoxinus (Minnow) Cyprinidae 4
Cottus bairdii Cottidae 2
Barbatula barbatula (Stone Loach) Nemacheilidae 2
Carassius auratus (Goldfish) Cyprinidae 1
Salmo trutta (Brown Trout / Sea Trout) Salmonidae 1

🪰 EPT Species (Mayflies, Stoneflies & Caddisflies)

10 EPT species detected (7 families, 22 ESVs — E:2 / P:2 / T:6)
SpeciesFamilyESVs
Ephemeroptera (Mayflies)
Baetis rhodani (Large Dark Olive) Baetidae 2
Cloeon dipterum (Pond Olive) Baetidae 2
Plecoptera (Stoneflies)
Nemurella pictetii (Pictet's Stonefly) Nemouridae 3
Taeniopteryx nebulosa (February Red) Taeniopterygidae 1
Trichoptera (Caddisflies)
Glyphotaelius pellucidus (Northern Caddisflies) Limnephilidae 7
Stenophylax permistus (Northern Caddisflies) Limnephilidae 3
Apatania cimbrica (Apataniid Caddisflies) Apataniidae 1
Hydroptila vectis (Microcaddisflies) Hydroptilidae 1
Limnephilus marmoratus (Northern Caddisflies) Limnephilidae 1
Sericostoma personatum (Sericostomatid Caddisflies) Sericostomatidae 1

🔗 Your Ecological Twin

Most similar site: H5 - Upstream Colstrope Farm
River: Hamble Brook (same river)
Similarity: 41% of species shared
Download Data

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

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