South Holland Main Drain
18 fish species have been recorded at 18 locations along the South Holland Main Drain.
- Fish species
- 18
- Places surveyed
- 18
- Survey visits
- 93
- Records span
- 1986–2025
Local EA evidence
Where fish were recorded
Choose a point on the map to see what was recorded there.
Check local permissions before fishing.
River conditions
Environment Agency evidence
Fish found in this river
Open a linked fish for detailed measurements, or use the map filter above to compare survey locations.
| Fish | Sites | Most recent | Fish counted | Measured length | Measured weight |
|---|---|---|---|---|---|
| RoachRutilus rutilus | 18 | 2025 | 97,665 | Median: 9 cm21,351 fish measuredLargest measured roach: 31.9 cm | — |
| PikeEsox lucius | 16 | 2025 | 245 | Median: 49.5 cm245 fish measuredLargest measured pike: 98.6 cm | — |
| GudgeonGobio gobio | 15 | 2025 | 911 | Median: 7.5 cm592 fish measuredLargest measured gudgeon: 14 cm | — |
| Common breamAbramis brama | 14 | 2025 | 8,856 | Median: 7 cm3,680 fish measuredLargest measured common bream: 58.4 cm | — |
| PerchPerca fluviatilis | 14 | 2025 | 4,138 | Median: 8.1 cm2,057 fish measuredLargest measured perch: 37.6 cm | — |
| RuddScardinius erythrophthalmus | 14 | 2025 | 838 | Median: 9 cm752 fish measuredLargest measured rudd: 35 cm | — |
| European eelAnguilla anguilla | 14 | 2025 | 345 | Median: 47.5 cm32 fish measuredLargest measured european eel: 71.1 cm | Median: 12.3 oz (0.35 kg)5 fish weighedLargest measured: 1 lb 8.7 oz (0.7 kg) |
| 3-spined sticklebackGasterosteus aculeatus | 13 | 2025 | 6,077 | Median: 5 cm1,480 fish measuredLargest measured 3-spined stickleback: 8.5 cm | — |
| TenchTinca tinca | 11 | 2025 | 258 | Median: 10 cm241 fish measuredLargest measured tench: 50.6 cm | — |
| Common carpCyprinus carpio | 10 | 2025 | 161 | Median: 54.6 cm161 fish measuredLargest measured common carp: 76.5 cm | — |
| Silver breamAbramis bjoerkna | 10 | 2012 | 3,740 | Median: 10.1 cm1,537 fish measuredLargest measured silver bream: 27.2 cm | — |
| BleakAlburnus alburnus | 7 | 1997 | 60 | Median: 9 cm60 fish measuredLargest measured bleak: 16.5 cm | — |
| FlounderPlatichthys flesus | 6 | 2016 | 18 | Median: 24.8 cm18 fish measuredLargest measured flounder: 36.5 cm | — |
| 10-spined sticklebackPungitius pungitius | 5 | 2011 | 4 | Median: 4.8 cm4 fish measuredLargest measured 10-spined stickleback: 5.5 cm | — |
| Spined loachCobitis taenia | 4 | 2019 | 3 | Median: 8.5 cm3 fish measuredLargest measured spined loach: 9.7 cm | — |
| Common gobyPomatoschistus microps | 1 | 1997 | 9 | Median: 6 cm9 fish measuredLargest measured common goby: 7 cm | — |
| DabLimanda limanda | 1 | 2007 | — | — | — |
| SpratSprattus sprattus | 1 | 1997 | 6 | Median: 9 cm6 fish measuredLargest measured sprat: 10 cm | — |
EA surveys have recorded these fish at particular sites and times. Absence from a survey is not evidence that a species is absent from the river. Every valid individual length and weight is retained, with its sample size shown.
Useful context
This page follows survey locations along the main South Holland Main Drain. Tributaries and unrelated rivers with similar names are kept separate.
The map shows past fish records, not fishing access or a promise of what you’ll catch today.
How RiverFish handles the data →