Region 1: EPA New England
Sawmill River - Invertebrates
| Invertebrates | Estimated Count* |
|---|---|
| Ablabesmyia | 120 |
| Acentrella | 480 |
| Acroneuria | 120 |
| Baetidae | 720 |
| Baetis | 360 |
| Bezzia/Palpomyia | 240 |
| Ceratopogonidae | 120 |
| Chaetogaster diaphanus | 240 |
| Chironomidae (pupae) | 600 |
| Cladotanytarsus | 240 |
| Cricotopus bicinctus | 360 |
| Cricotopus/Orthocladius | 600 |
| Dolophilodes | 360 |
| Elmidae | 240 |
| Ephemerellidae | 840 |
| Ferrissia | 480 |
| Helicopsyche borealis | 240 |
| Hemerodromia | 240 |
| Heptageniidae | 840 |
| Hydropsyche | 1920 |
| Hydropsyche slossonae | 360 |
| Hydropsyche sparna | 960 |
| Hydropsychidae | 720 |
| Lebertia | 120 |
| Lepidostoma | 240 |
| Lumbriculidae | 240 |
| Microtendipes pedellus grp. | 240 |
| Microtendipes rydalensis grp. | 720 |
| Mystacides | 120 |
| Nais behningi | 1560 |
| Nais communis | 120 |
| Nematoda | 120 |
| Nigronia serricornis | 240 |
| Nilothauma | 120 |
| Noctuidae | 120 |
| Optioservus | 120 |
| Orthocladiinae | 240 |
| Parametriocnemus | 120 |
| Phaenopsectra | 120 |
| Plecoptera | 120 |
| Polypedilum | 120 |
| Polypedilum aviceps | 2520 |
| Psephenus herricki | 120 |
| Rheotanytarsus | 3000 |
| Serratella | 360 |
| Stempellinella | 960 |
| Stenonema | 360 |
| Stenonema modestum | 240 |
| Stenonema vicarium | 480 |
| Sublettea | 240 |
| Tanytarsini | 120 |
| Tanytarsus | 3120 |
| Thienemanniella | 240 |
| Thienemannimyia grp. | 240 |
| Tubificid immature: bifids | 120 |
| Tvetenia discoloripes grp. | 120 |
*Estimated number based on a subsampling multiplier.
Total stream area sampled is 4 square meters.