TY - JOUR
T1 - Evaluation of a naturalized rock ramp fish passage for cool- and warm-water fish in a tributary of Saginaw Bay, Lake Huron
AU - Murry, Brent A
AU - Ania, Andrea
AU - Galarowicz, Tracy L
AU - Briggs, Andrew Scott
N1 - Funding Information:
The authors gratefully acknowledge the support by our respective institutions which included a federal agency (USFWS), state agency (MDNR) and two universities (CMU and MSU) as well as support from local municipalities, cities of Frankenmuth and Chesaning, MI. Financial support for this project came from the Saginaw Bay Watershed Initiative Network, the Great Lakes Fishery Trust and the US Fish and Wildlife Service. This paper is Contribution Number 130 of the Central Michigan University Institute for Great Lakes Research. The findings and conclusions in this article are those of the authors and do not necessarily represent the views of the U.S. Fish and Wildlife Service.
Funding Information:
The authors gratefully acknowledge the support by our respective institutions which included a federal agency (USFWS), state agency (MDNR) and two universities (CMU and MSU) as well as support from local municipalities, cities of Frankenmuth and Chesaning, MI. Financial support for this project came from the Saginaw Bay Watershed Initiative Network, the Great Lakes Fishery Trust and the US Fish and Wildlife Service. This paper is Contribution Number 130 of the Central Michigan University Institute for Great Lakes Research. The findings and conclusions in this article are those of the authors and do not necessarily represent the views of the?U.S.?Fish and Wildlife Service.
Publisher Copyright:
© 2019 John Wiley & Sons Ltd
PY - 2020
Y1 - 2020
N2 - Dams across the Great Lakes basin are nearing or beyond their original design life, posing both challenges and opportunities to natural resource managers. Ageing dams can be repaired to preserve function and maintain safety, removed to promote full connectivity or retrofitted with a fish passage structure to increase connectivity without reservoir loss. The success of rock ramp structures is not well documented, especially for cool‐ and warm‐water fishes in the Great Lakes basin. The success of a recently built (2009) rock ramp for increasing upstream fish passage on the Shiawassee River in Michigan, USA, was evaluated. While there was evidence of limited fish passage during the study period (2011–2016), catches of spring migratory fishes, fish eggs and larvae were significantly higher below the rock ramp than above, indicating the dam with rock ramp fish pass continues to limit upstream migration. Overall connectivity appears improved relative to a reference, dammed river, but falls short of full connectivity.
AB - Dams across the Great Lakes basin are nearing or beyond their original design life, posing both challenges and opportunities to natural resource managers. Ageing dams can be repaired to preserve function and maintain safety, removed to promote full connectivity or retrofitted with a fish passage structure to increase connectivity without reservoir loss. The success of rock ramp structures is not well documented, especially for cool‐ and warm‐water fishes in the Great Lakes basin. The success of a recently built (2009) rock ramp for increasing upstream fish passage on the Shiawassee River in Michigan, USA, was evaluated. While there was evidence of limited fish passage during the study period (2011–2016), catches of spring migratory fishes, fish eggs and larvae were significantly higher below the rock ramp than above, indicating the dam with rock ramp fish pass continues to limit upstream migration. Overall connectivity appears improved relative to a reference, dammed river, but falls short of full connectivity.
UR - https://doi.org/10.1111/fme.12392
M3 - Article
SN - 0969-997X
VL - 27
SP - 77
EP - 91
JO - Fisheries Management and Ecology
JF - Fisheries Management and Ecology
ER -