In this study, we document a fish community shift in the upper mainstem of Hubbard Brook (NH) from the presence of at least three species in the 1960s to the presence of only one species; Salvelinus fontinalis (Brook Trout) is the only fish species now present in the upper reaches of the Hubbard Brook Valley. This data set includes the upstream extent of Brook Trout, change in distribution from 2005 to 2007 and presence of potential physical barriers in each Hubbard Brook tributary from 2005, 2006, and 2007 fish surveys. For details see Warren, D. R., G. E. Likens, D. C. Buso and C. E. Kraft. 2008. Status and Distribution of Fish in an Acid-impacted Watershed of the Northeastern United States (Hubbard Brook, NH) Northeastern Naturalist 15(3):375-390. https://doi.org/10.1656/1092-6194-15.3.375
These data were gathered as part of the Hubbard Brook Ecosystem Study (HBES). The HBES is a collaborative effort at the Hubbard Brook Experimental Forest, which is operated and maintained by the USDA Forest Service, Northern Research Station.