Time Frame | BIBI (Condition)a | FIBI (Condition)ab | RBP (Condition) |
|---|---|---|---|
2024 Results | 2.43 (Poor) | 2.33 (Poor) | 139 (Supporting) |
Cumulative Average (2016-2024) | 2.14 (Poor) | 2.66 (Poor) | 128 (Supporting) |
3-year Running Average | 2.33 (Poor) | 2.66 (Poor) | 144 (Supporting) |
a. No data collected in 2017-2019.
b. Fish data collected in 2022 and 2024.
This site was sampled once in 2016 prior to restoration efforts. After work was completed, sampling resumed in 2020. In 2024, the site received a BIBI score of 2.43 (Poor). Pre-restoration samples were dominated by scuds and snails, while post-restoration samples have been dominated by flies, scuds, and bivalves (clams and mussels). Dragonflies and caddisflies were collected at the site for the second and third consecutive years, respectively.
CA-01 Summary of Insects Collected by Sample Year:
In 2024 the site received a FIBI score of 2.33 (Poor). A total of 177 individual fish representing four different species were observed in 2024. Eastern mudminnow (Umbra pygmaea) was the dominant species, making up nearly 70% of the sample.
CA-01 Summary of Fish Collected by Sample Year:
In 2016, prior to restoration, the site received an RBP score of 112 (Partially Supporting). While habitat quality was predictably low directly following restoration work, the site has improved markedly and in 2024 received an RBP narrative score of “Supporting” for the second year in a row.
Geomorphology at the site was first measured in 2007 and again in 2016, prior to commencement of restoration activities. Prior to restoration the channel was narrow and deeply incised. The restoration work widened the channel considerably and reconnected the stream with its floodplain. Stable channel conditions appear to have been created, as little change has been observed in the profile since 2020.
CA-01 Cross-Section Comparison:
| CA-01 | |||
|---|---|---|---|
| Year | BIBI (Condition) | FIBI (Condition) | RBP (Condition) |
| 2016 | 2.43 (P) | -- | 112 (PS) |
| 2020 | 1.86 (VP) | -- | 93 (NS) |
| 2021 | 1.57 (VP) | -- | 134 (NS) |
| 2022 | 2.43 (P) | 3.00 (F) | 151 (C) |
| 2023 | 2.14 (P) | -- | 142 (S) |
2024 | 2.43 (P) | 2.33 (P) | 139 (S) |
| Station Summary | ||||||
|---|---|---|---|---|---|---|
| Average BIBI (SD) | 3-Year BIBI Average (SD) | Average RBP (SD) | 3-Year RBP Average (SD) | Average FIBI (SD) | 3-Year FIBI Average (SD) | |
| CA-01 | 2.14 (0.36) | 2.05 (0.17) | 128 (22) | 144 (6) | 2.66 (0.47) | 2.66 (0.47) |
SD = Standard Deviation