This project will evaluate the resiliency of an aquatic community to a catastrophic event and the reestablishment of that community in Flat Creek above and below a potential movement barrier. Sampling methods will target life history stages of each species and the collection of habitat and geomorphic data (e.g., slope, water velocity, pool-to-pool spacing, pool depth, and channel substrate). These data will assist FWS and GDNR to evaluate (1) how quickly different aquatic guilds establish following species kills resulting from toxic pollutant spills, droughts or similar impacts; (2) which species/guilds’ re-colonization is inhibited by movement barriers; and (3) how re-colonization of this reach, where known habitat for a listed fish [...]
Summary
This project will evaluate the resiliency of an aquatic community to a catastrophic event
and the reestablishment of that community in Flat Creek above and below a potential movement barrier.
Sampling methods will target life history stages of each species and the collection of habitat and geomorphic
data (e.g., slope, water velocity, pool-to-pool spacing, pool depth, and channel substrate). These data will
assist FWS and GDNR to evaluate (1) how quickly different aquatic guilds establish following species kills
resulting from toxic pollutant spills, droughts or similar impacts; (2) which species/guilds’ re-colonization is
inhibited by movement barriers; and (3) how re-colonization of this reach, where known habitat for a listed
fish occurs, compares to re-colonization of stream restoration reaches used for section 404 mitigation
purposes, where habitat is newly-created.
