Until recently, fish had not been reported in the park for a very long time (if ever.) But thanks to a collaboration with the Native Fish Coalition (NFC) and Newton Conservators, two species of fish have been discovered. The golden shiners have since been captured in other locations, with further identification by environmental DNA analysis. Because they are a common bait fish, the shiners most likely were placed in the brook after someone was done fishing. Because of varying sizes and age classes, however, it appears that they have established a self-sustaining small population. The NFC enlisted the help of state Fish & Game specialist Adam Kautza to do an…