Region 1: EPA New England
Horseshoe Stream - Invertebrates
| Invertebrates | Estimated Count* |
|---|---|
| Acroneuria | 60 |
| Amnicola limosa | 300 |
| Baetidae | 60 |
| Brachycentridae | 60 |
| Brachycentrus | 300 |
| Cheumatopsyche | 1860 |
| Chimarra | 780 |
| Chironomidae (pupae) | 120 |
| Cricotopus/Orthocladius | 60 |
| Ectopria | 60 |
| Elmidae | 60 |
| Epeorus | 60 |
| Ferrissia | 60 |
| Gomphidae | 60 |
| Heptageniidae | 360 |
| Hydropsyche | 480 |
| Hydropsyche morosa | 540 |
| Hydropsyche slossonae | 60 |
| Hydropsyche sparna | 120 |
| Isonychia | 60 |
| Leuctridae | 60 |
| Lumbriculidae | 180 |
| Microtendipes rydalensis grp. | 60 |
| Nematoda | 120 |
| Nigronia serricornis | 120 |
| Pisidium | 780 |
| Polycentropodidae | 60 |
| Polypedilum aviceps | 60 |
| Promoresia | 420 |
| Psectrocladius | 60 |
| Psilotreta indecisa | 60 |
| Rheotanytarsus | 1080 |
| Rhycophila | 60 |
| Simulium | 120 |
| Sphaeriidae | 2280 |
| Sphaerium | 120 |
| Stenelmis | 480 |
| Tanytarsus | 600 |
| Thienemannimyia grp. | 300 |
| Tricorythodes | 60 |
| Tvetenia bavarica grp. | 240 |
| Valvatidae | 60 |
*Estimated number based on a subsampling multiplier.
Total stream area sampled is 4 square meters.