Hydraulic and biological analysis of the passability of select fish species at the U.S. Geological Survey streamgaging weir at Blackwells Mills, New Jersey

Abstract

For more information on the USGS-the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment-visit https://www.usgs.gov or call 1-888-ASK-USGS.For an overview of USGS information products, including maps, imagery, and publications, visit https://store.usgs.gov.Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.Suggested citation: Haro, Alex, Mulligan, Kevin, Suro, T.P., Noreika, John, and McHugh, Amy, 2017, Hydraulic and biological analysis of the passability of select fish species at the U.S. Geological Survey streamgaging weir at Blackwells Mills, New Jersey: U.S. Geological Survey Scientific Investigations Report 2017-5103, 15 p., https://doi.org/10.3133/sir20175103. ISSN 2328-0328 (online) iii AcknowledgmentsThe authors wish to acknowledge Mark Boriek of the New Jersey Division of Fish and Wildlife and Mark Walters of the New Jersey Department of Environmental Protection, Office of Natural Resource Restoration, who provided information on target species and run timing data. The authors also thank Brett Towler from the U.S. Fish and Wildlife Service for assistance with the hydraulic analysis in this study.Lastly, the authors wish to acknowledge Jason Shvanda and the hydrologists and hydrologic technicians of the USGS Hydrologic Data Assessment Program for providing water level data collection at the study site and analysis support. AbstractRecent efforts to advance river connectivity for the Millstone River watershed in New Jersey have led to the evaluation of a low-flow gauging weir that spans the full width of the river. The methods and results of a desktop modelling exercise were used to evaluate the potential ability of three anadromous fish species (Alosa sapidissima [American shad], Alosa pseudoharengus [alewife], and Alosa aestivalis [blueback herring]) to pass upstream over the U