Brian Weidel is a Research Fisheries Biologist based out of Oswego, NY.
Professional Experience
Research Fishery Biologist, Lake Ontario Biological Station, March 2010 - Present
Research Fishery Biologist, United States Geological Survey, Great Lakes Science Center 2010 – present
Postdoctoral Researcher, University of Wisconsin, Madison 2009 - 2010
Graduate Research Assistant, University of Wisconsin, Madison 2005 - 2008
Research Assistant & Laboratory Manager, Cornell University 2004 - 2005
Graduate Research Assistant, Cornell University, Department of Natural Resources 2000 - 2003
Research Assistant, Cornell University, Adirondack Fishery Research Program 1998 - 2000
Research Assistant, Cornell University, Cornell Biological Field Station 1997 - 1998
Education and Certifications
Ph.D. in Limnology and Marine Science, Center for Limnology, Univerisity of Wisconsin-Madison, 2009
M.S. in Natural Resources, Department of Natural Resources, Cornell University, 2003
B.S. in Natural Resources, Department of Natural Resources, Cornell University, 1997
Science and Products
Publications by this scientist
Predicting physical and geomorphic habitat associated with historical lake whitefish and cisco spawning locations in Lakes Erie and Ontario
Lake Ontario April prey fish survey results and Alewife assessment, 2022
Depth drives growth dynamics of dreissenid mussels in Lake Ontario
Results of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020
Lake Ontario cisco population dynamics based on long-term surveys
Slimy sculpin depth shifts and habitat squeeze following the round goby invasion in the Laurentian Great Lakes
Lake Ontario April prey fish survey and Alewife assessment, 2021
Incorporation of non-native species in the diets of cisco (Coregonus artedi) from eastern Lake Ontario
2020 Status of the Lake Ontario lower trophic levels
Legacy contaminant-stable isotope-age relationships in Lake Ontario year-class Alewife (Alosa pseudoharengus)
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science pages by this scientist
Aquatic Native Species and Habitat Restoration: Quantifying Coregonine Habitat Use Dynamics
Invasive Mussel Control Science: Dreissenid Mussel Growth in Lake Ontario
Understanding How Climate Change Will Impact Aquatic Food Webs in the Great Lakes
Data releases by this scientist
Historical Spawning Sites for Lake Whitefish (Coregonus clupeaformis) and Cisco (Coregonus artedi) in Lake Ontario and Connecting Channels, 1860-1970
Lake Ontario April Prey Fish Bottom Trawl Survey, 1997-2021
News about this scientist
Science and Products
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Publications by this scientist
Filter Total Items: 100Predicting physical and geomorphic habitat associated with historical lake whitefish and cisco spawning locations in Lakes Erie and Ontario
The Great Lakes basin was historically populated by multiple, coevolved coregonine species, but much of that diversity has been lost. In Lakes Erie and Ontario, both lake whitefish (Coregonus clupeaformis) and cisco (Coregonus artedi) occurred in high numbers before habitat degradation, overfishing, invasive species, and other factors caused significant declines. There is growing interest in restoLake Ontario April prey fish survey results and Alewife assessment, 2022
The annual Lake Ontario April bottom trawl survey and Alewife, Alosa pseudoharengus, population assessment provide science to inform management decisions related to predator-prey balance and fish community dynamics. The 2022 survey was conducted from March 31 to April 26, included 235 trawls in the main lake and embayments, and sampled depths from 5 to 219 m (16 – 723 ft). The survey captured 311,Depth drives growth dynamics of dreissenid mussels in Lake Ontario
Understanding dreissenid mussel population dynamics and their impacts on lake ecosystems requires quantifying individual growth across a range of habitats. Most dreissenid mussel growth rates have been estimated in nutrient rich or nearshore environments, but mussels have continued to expand into deep, cold, low-nutrient habitats of the Great Lakes. We measured annual quagga mussel (Dreissena rostResults of the collaborative Lake Ontario bloater restoration stocking and assessment, 2012–2020
Bloater, Coregonus hoyi, are deepwater planktivores native to the Laurentian Great Lakes and Lake Nipigon. Interpretations of commercial fishery time series suggest they were common in Lake Ontario through the early 1900s but by the 1950s were no longer captured by commercial fishers. Annual bottom trawl surveys that began in 1978 and sampled extensively across putative bloater habitat only yieldeLake Ontario cisco population dynamics based on long-term surveys
Prior to European settlement, cisco (Coregonus artedi) were likely one of Lake Ontario’s most abundant fishes but currently represent a small portion of the fish community. To understand how the population has changed over the past 70 years we compared trends in annual catch rates from gillnet and bottom trawl surveys and commercial fishery landings. In surveys, cisco were generally rare, and reprSlimy sculpin depth shifts and habitat squeeze following the round goby invasion in the Laurentian Great Lakes
The collapse of Diporeia spp. and invasions of dreissenid mussels (zebra, Dreissena polymorpha; quagga, D. bugensis) and round goby (Neogobius melanostomus) have been associated with declines in abundance of native benthic fishes in the Great Lakes, including historically abundant slimy sculpin (Cottus cognatus). We hypothesized that as round goby colonized deeper habitat, slimy sculpin avoided haLake Ontario April prey fish survey and Alewife assessment, 2021
The Lake Ontario April bottom trawl survey and Alewife, Alosa psuedoharengus population assessment are conducted annually to track prey fish community status and aid management decisions related to predator-prey balance. No survey was conducted in 2020 due to the Covid-19 pandemic. The 2021 survey included 248 bottom trawls in both U.S. and Canadian waters, from March 30 - May 7 in the main lake aIncorporation of non-native species in the diets of cisco (Coregonus artedi) from eastern Lake Ontario
Cisco Coregonus artedi was once an important native fish in Lake Ontario; however, after multiple population crashes, the cisco stock has yet to recover to historic abundances. Rehabilitation of cisco in Lake Ontario is a fish community management objective, but the extent to which recent non-native species and pelagic food web changes have influenced cisco is not well understood. We described cis2020 Status of the Lake Ontario lower trophic levels
Significant Findings for Year 2020: Note that due to covid-19 restrictions, offshore sampling was limited in 2020.1) May – Oct total phosphorus (TP) in 2020 was 10.6 µg/L (offshore) and 7.7 µg/L (nearshore), higher than the long-term (1995-2019) average in the offshore (6.2 µg/L) and close to average in the nearshore (7.8 µg/L); mean TP values for the past decade (2010-2019) were 6.0 µg/L and 7.9Legacy contaminant-stable isotope-age relationships in Lake Ontario year-class Alewife (Alosa pseudoharengus)
Alewife (Alosa pseudoharengus) are the preferred prey species of the top piscivore predators in the Lake Ontario food web and are an essential constituent in the bioaccumulation of persistent organic contaminants. Year-class samples collected in 2016 represent the alewife age ranges of 2015 (Age-01) sequentially dating back to 2008 (Age-08). The most abundant contaminant measured in Lake Ontario aNon-USGS Publications**
Weidel, B. C., S.R. Carpenter, J.F. Kitchell, M.J. Vander Zanden. 2011. Rates and components of carbon turnover in fish muscle: insights from bioenergetics models and a whole-lake 13C addition. Canadian Journal of Fisheries and Aquatic Sciences 68:387-399.Tetzlaff, J.C., Roth, B.R., Weidel, B.M., and J.F. Kitchell. 2011. Predation by native sunfishes (Lepomis spp.) on the invasive crayfish Orconectes rusticus in four northern Wisconsin lakes. Ecology of Freshwater Fish. 20:133-143.Carpenter, S.R., J.J. Cole, M.L. Pace, R.D. Batt, W.A. Brock, T. Cline, J. Coloso, J.R. Hodgson, J.F. Kitchell, D.A. Seekell, L. Smith and B. Weidel. 2011. Early warnings of regime shifts: A whole-ecosystem experiment. Science 332: 1079-1082.Robinson, J.M., D.C Josephson, B.C. Weidel and C.E. Kraft. 2010. Influence of variable interannual summer water temperatures on brook trout growth, consumption, reproduction, and mortality in an unstratified Adirondack lake. Transactions of the American Fisheries Society 139:685-699.Solomon, C.T., J. Cole, R. Doucett, M. Pace, N. Preston, L. Smith, and B. Weidel. 2009. The influence of dietary water on the hydrogen stable isotope ratio in aquatic consumers. Oecologia 161:313-324.Jensen, O., D. Gilroy, Z. Hogan, B. Allen, T. Hrabik, B. Weidel, S. Chandra, and M.J. Vander Zanden, 2009. Evaluating recreational fisheries for an endangered species: a case study of taimen, Hucho taimen, in Mongolia. Canadian Journal of Fisheries and Aquatic Sciences. 66:1707-1718.Biggs, R., Diebel, M., Gilroy, D., Kamarainen, A., Kornis, M., Preston, N., Schmitz, J. Uejio, C., Van De Bogert, M., Weidel, B., West, P., Zaks, D. and S. Carpenter 2009. Preparing for the future: Teaching scenario planning at the graduate level. Frontiers in Ecology and the Environment.Weidel, B., S. Carpenter, J. Cole, J. Hodgson, Kitchell, M. Pace, and C. Solomon. 2008 Carbon sources supporting fish growth in a north temperate lake. Aquatic Sciences. 70: 446-458.Zipkin, E., Sullivan, P., Cooch, E., Kraft, C., Shuter, B., Weidel, B. 2008. Overcompensatory response of a smallmouth bass population to harvest: release from competition? Canadian Journal of Fisheries and Society 65:2279-2292.Josephson, D., J. Robinson, B. Weidel and C. Kraft. 2008. Long-term retention and visibility of visible implant elastomer tags in brook trout. North American Journal of Fisheries Management. 28:1758-1761.Weidel, B., Ushikubo, T., Carpenter, S., Kita, N., Cole, J., Kitchell, J., Pace M., Valley, J. 2007. Diary of a bluegill (Lepomis macrochirus): daily δ13C and δ18O records in otoliths by ion microprobe. Canadian Journal of Fisheries and Aquatic Sciences 64:1641-1645.Pace, M.L., S.R. Carpenter, J.J. Cole, J.J. Coloso, J.F. Kitchell, J.R. Hodgson, J.J. Middelburg, N.D. Preston, C.T. Solomon, and B.C. Weidel. 2007. Does terrestrial organic carbon subsidize the planktonic food web in a clear-water lake? Limnology and Oceanography 52: 2177-2189.Weidel, B.C., Josephson, D.C., and Kraft, C.E. 2007. Fish community response to removal of introduced smallmouth bass in an oligotrophic Adirondack lake. Transactions of the American Fisheries Society 178: 778-789Lepak, J.M., C.E. Kraft, and B.C. Weidel. 2006. Rapid food web recovery in response to removal of an introduced apex predator. Canadian Journal of Fisheries and Aquatic Sciences 63: 569-575.Weidel, B.C., D.C. Josephson, C.C. Krueger. 2000. Diet and prey selection of naturalized smallmouth bass in an oligotrophic Adirondack lake. J. Freshwater Ecol. 15:411-420.Cline, T., D. Seekell, S. Carpenter, J. Hodgson, J. Kitchell, M.L. Pace, B. Weidel. 2014. Early warnings of regime shifts: evaluation of spatial indicators from a whole‐ecosystem experiment. Ecosphere 5(8).Cline, T.J., B.C. Weidel, J.F. Kitchell, and J.R. Hodgson. 2012. Growth response of largemouth bass (Micropterus salmoides) to catch-and-release angling: a 27-year mark-recapture study. Canadian Journal of Fisheries and Aquatic Sciences. 69:224-230. 10.1139/f2011-150.Ahrenstorff, T.D., O.P. Jensen, B.C. Weidel, B. Mendsaikhan, and T.R. Hrabik. 2012. Abundance, spatial distribution, and diet of endangered Hovsgol grayling (Thymallus nigrescens). Environmental Biology of Fishes.Tetzlaff, J.C., Roth, B.R., Weidel, B.M., and J.F. Kitchell. 2011. Predation by native sunfishes (Lepomis spp.) on the invasive crayfish Orconectes rusticus in four northern Wisconsin lakes. Ecology of Freshwater Fish. 20:133-143.**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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Science pages by this scientist
Aquatic Native Species and Habitat Restoration: Quantifying Coregonine Habitat Use Dynamics
Restoring and maintaining extent of native coregonid populations in the Great Lakes is a basin-wide priority. In response, an adaptive framework has identified knowledge gaps associated with spatial dynamics and stock diversity. This project used the Cooperative Science and Monitoring Initiative (CSMI) with an incredible in-kind support from agencies and universities from across the region to...Invasive Mussel Control Science: Dreissenid Mussel Growth in Lake Ontario
USGS scientists worked with the National Oceanic and Atmospheric Administration (NOAA) to monitor growth of invasive zebra mussels (Dreissena polymorpha) in Lake Ontario with the goal of improving understanding on the effects these mussels have on the Lake food web.Understanding How Climate Change Will Impact Aquatic Food Webs in the Great Lakes
This project addressed regional climate change effects on aquatic food webs in the Great Lakes. We sought insights by examining Lake Erie as a representative system with a high level of anthropogenic impacts, strong nutrient gradients, seasonal hypoxia, and spatial overlap of cold- and cool-water fish guilds. In Lake Erie and in large embayments throughout the Great Lakes basin, this situation is - Data
Data releases by this scientist
Historical Spawning Sites for Lake Whitefish (Coregonus clupeaformis) and Cisco (Coregonus artedi) in Lake Ontario and Connecting Channels, 1860-1970
The following data release contains coordinates for suspected historical spawning locations of lake whitefish (Coregonus clupeaformis) and cisco (Coregonus artedi) across the Lake Ontario basin, including the Niagara River and St. Lawrence River. These data were gathered from published and unpublished sources cited in the Atlas of the Spawning and Nursery Areas of Great Lakes Fishes (Goodyear et aLake Ontario April Prey Fish Bottom Trawl Survey, 1997-2021
This data release includes Lake Ontario prey fish data including species captured, relative abundance, spatial distribution, size structure, and age data from the April or spring prey fish bottom trawl survey, 1997 and 2021. Data from 1997 - 2015 are from U.S. waters of Lake Ontario while data from 2016 - 2021 include both U.S. and Canadian waters of Lake Ontario. Details about the vessel and gear - Multimedia
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