Brian Lantry
Science and Products
Foundations for Future Restoration Actions: Cooperative Science and Monitoring Initiative - Lake Ontario, 2018
Environmental organizations from the United States and Canada have teamed up each year, as part of the Cooperative Science and Monitoring Initiative (CSMI) program, to assess conditions in one of the five Great Lakes. . Each year, the survey focuses on a series of research areas, such as phosphorus and nitrogen input and movement through the food web, phytoplankton and zooplankton populations...
Aquatic Native Species and Habitat Restoration: Cisco Spawning Habitat Assessment
Cisco (formerly known as Lake Herring) Coregonus artedi are native shallow water coregonines which were formerly very abundant in the Great Lakes and provided large commercial fisheries and healthy prey to native piscivores. In most areas outside of Lake Superior, cisco abundance is greatly reduced and in Lakes Ontario and Erie they are uncommon to rare.
Spatial and temporal variability in lake trout diets in Lake Ontario as revealed by stomach contents and stable isotopes
Lake trout (Salvelinus namaycush) are an ecologically and economically important piscivore with reported differences in diet and feeding behaviour throughout its range. Eleven stomach content and stable isotope-based metrics were used to describe diets of 349 lake trout between two years (2013 and 2018) and among geographic zones (west, central,...
Brent M. Nawrocki; Brent W. Metcalfe; Jeremy P. Holden; Lantry, Brian F.; Timothy B. Johnson Lake trout rehabilitation in Lake Ontario, 2019
Each year we report on the progress toward rehabilitation of the Lake Ontario lake trout (Salvelinus namaycush) population, including the results of stocking, annual assessment surveys, creel surveys, and evidence of natural reproduction observed from all standard surveys performed by USGS and NYSDEC. The catch per unit effort of adult lake trout...
Lantry, Brian F.; Furgal, Stacy; Weidel, Brian C.; Connerton, Michael; Gorsky, Dimitry; Osborne, Christopher Lake trout spawning studies: Updates, new survey, and comparison to standard September gillnet survey
In Lake Ontario, lake trout restoration efforts have not established a self-sustaining population. Herein we describe efforts to evaluate standard and new surveys, and to estimate dispersal from stocking locations, to better understand impediments to natural reproduction. In 2019, lake trout egg deposition was sampled at two locations, Stony...
Furgal, Stacy; Osborne, Christopher; Lantry, Brian F.; Weidel, Brian C.; Gorsky, Dimitry; Connerton, Michael 2019 Status of the Lake Ontario Lower Trophic Levels
Spring total phosphorus (TP) in 2019 was 3.2 µg/L (offshore) and 4.7 µg/L (nearshore), both all-time lows; however, there is no significant time trend in our data series (1995-2019 for nearshore; 2002-2019 for offshore). Apr/May – Oct mean TP concentrations were low at both nearshore and offshore locations (range, 3.7 – 6.5 µg/L). TP and SRP...
Holeck, Kristen T.; Rudstam, Lars G.; Hotaling, Christopher; Lemon, Dave; Pearsall, Web; Lantry, Jana; Connerton, Mike; Legard, Chris; LaPan, Steve; Biesinger, Zy; Lantry, Brian F.; Weidel, Brian C.; O'Malley, Brian Lake Ontario deepwater sculpin recovery: An unexpected outcome of ecosystem change
Fish population recoveries can result from ecosystem change in the absence of targeted restoration actions. In Lake Ontario, native Deepwater Sculpin Myoxecephalus thompsonii, were common in the late-1800s, but by the mid-1900s the species was possibly extirpated. During this period mineral nutrient inputs increased and piscivore abundance...
Weidel, Brian C.; Connerton, Michael J.; Walsh, Maureen; Holden, Jeremy; Holleck, Kristen; Lantry, Brian F. 2017 Status of the Lake Ontario Lower Trophic Levels
Significant Findings for Year 2017: 1) Offshore spring total phosphorus (TP) in 2017 was 4.4 µg/L; values remained stable since 2001. Offshore soluble reactive phosphorus (SRP) remained low (1.1 µg/L) in 2017; Apr/May – Oct mean values have been stable in nearshore and offshore habitats since 1998 (range, 0.4 – 3.3 µg/L). Apr/May – Oct mean TP...
Holeck, Kristen T.; Rudstam, Lars G.; Hotaling, Christopher; McCullough, Russ D.; Lemon, Dave; Pearsall, Web; Lantry, Jana; Connerton, Mike; Legard, Chris; LaPan, Steve; Biesinger, Zy; Lantry, Brian F.; Weidel, Brian C. 2018 Status of the Lake Ontario lower trophic levels
Significant Findings for Year 2018: 1) Offshore spring total phosphorus (TP) in 2018 was 7.0 µg/L; values have remained stable since 2001. Offshore soluble reactive phosphorus (SRP) remained low (1.3 µg/L) in 2018; Apr/May – Oct mean values have been stable in nearshore and offshore habitats since 1998 (range, 0.4 – 3.3 µg/L). Apr/May – Oct mean...
Holeck, Kristen T.; Rudstam, Lars G.; Hotaling, Christopher; Lemon, Dave; Pearsall, Web; Lantry, Jana; Connerton, Mike; Legard, Chris; LaPan, Steve; Biesinger, Zy; Lantry, Brian F.; Weidel, Brian C. Lake trout spawning and habitat assessment at Stony Island Reef
Lake trout stocking began in the 1970s as part of a binational effort to restore a self-sustaining population of lake trout in Lake Ontario. Despite 48 years of restoration stocking, lake trout in Lake Ontario have not reestablished a self-sustaining population. Spawning surveys done at Stony Island Reef (SIR) in eastern Lake Ontario in 1987 and...
Furgal, Stacy; Lantry, Brian F.; Weidel, Brian C.; Farrell, John M.; Gorsky, Dimitry; Biesinger, Zy Stomach contents and stable isotopes analysis indicate Hemimysis anomala in Lake Ontario are broadly omnivorous
Hemimysis anomala is a recent invader to North American aquatic ecosystems and is spreading rapidly throughout the Great Lakes region. This is the first littoral mysid in the North American Great Lakes; and, as such, the ecosystem effects are unknown and could be substantial. These effects depend on the role of ...
Evans, T.M.; Naddafi, R.; Weidel, Brian C.; Lantry, Brian F.; Walsh, M.G.; Boscarino, B.T.; Johannsson, O.E.; Rudstam, L. G. Comparison of genetic and visual identification of cisco and lake whitefish larvae from Chaumont Bay, Lake Ontario
Cisco Coregonus artedi are an important component of native food webs in the Great Lakes, and their restoration is instrumental to the recovery of lake trout Salvelinus namaycush and Atlantic salmon Salmo salar. Difficulties with visual identification of larvae can confound early life history surveys, as cisco are often difficult to distinguish...
George, Ellen M.; Hare, Matthew P.; Crabtree, Darran L.; Lantry, Brian F.; Rudstam, Lars G. Deepwater sculpin status and recovery in Lake Ontario
Deepwater sculpin are important in oligotrophic lakes as one of the few fishes that use deep profundal habitats and link invertebrates in those habitats to piscivores. In Lake Ontario the species was once abundant, however drastic declines in the mid-1900s led some to suggest the species had been extirpated and ultimately led Canadian and U.S....
Weidel, Brian C.; Walsh, Maureen; Connerton, Michael J.; Lantry, Brian F.; Lantry, Jana R.; Holden, Jeremy P.; Yuille, Michael J.; Hoyle, James A. 2016 status of the Lake Ontario Lower Trophic levels
Significant Findings for Year 2016: 1) Offshore spring total phosphorus (TP) in 2016 was 6.2 μg/L, higher than 2014 and 2015 (4.0 and 4.2 μg/L); there was no significant decline 2001 - 2016. Offshore soluble reactive phosphorus (SRP) was very low in 2016; Apr/May – Oct mean values were <1 μg/L. SRP has been stable in nearshore and offshore...
Kristen T. Holeck; Lars G. Rudstam; Christopher Hotaling; Russ McCullough; Dave Lemon; Web Pearsall; Jana Lantry; Mike Connerton; Steve LaPan; Zy Biesinger; Lantry, Brian F.; Walsh, Maureen; Weidel, Brian C.
GLSC Participates in Lake Ontario Data Synthesis Workshop with Partners
Cooperative Science and Monitoring Initiative Data Integration for the 2018 Season in Lake Ontario