Region 1: EPA New England
Pease Brook - Invertebrates
| Invertebrates | Estimated Count* |
|---|---|
| Ablabesmyia mallochi | 24 |
| Atherix | 24 |
| Baetidae | 24 |
| Boyeria vinosa | 24 |
| Cheumatopsyche | 24 |
| Chironomidae (pupae) | 48 |
| Cladotanytarsus | 48 |
| Dicranota | 240 |
| Dolophilodes | 48 |
| Eurylophella | 168 |
| Ferrissia | 216 |
| Ferrissia rivularis | 360 |
| Glossosoma | 72 |
| Heptageniidae | 192 |
| Hexatoma | 24 |
| Hydropsyche betteni/depravata | 24 |
| Hydropsyche bronta | 24 |
| Hydropsyche sparna | 48 |
| Hydropsychidae | 24 |
| Isonychia | 120 |
| Leptophlebiidae | 96 |
| Lumbriculidae | 600 |
| Microtendipes pedellus grp. | 72 |
| Microtendipes rydalensis grp. | 72 |
| Nematoda | 48 |
| Optioservus | 384 |
| Oulimnius | 456 |
| Polypedilum flavum | 24 |
| Psephenus herricki | 480 |
| Psychomyia flavida | 72 |
| Pycnopsyche | 24 |
| Rhagovelia | 48 |
| Rheotanytarsus | 24 |
| Rhycophila | 216 |
| Simulium | 24 |
| Stenonema vicarium | 144 |
| Sublettea | 24 |
| Taeniopteryx | 192 |
| Tanytarsini | 24 |
| Tanytarsus | 168 |
| Tipula | 24 |
*Estimated number based on a subsampling multiplier.
Total stream area sampled is 4 square meters.