Retrospective growth analysis of lake whitefish (Coregonus clupeaformis) in Lakes Erie and Ontario, 1954-2003

Despite the longstanding significance of North America's Great Lakes, little is known about their preindustrial ecology. Here, we report on when and how humans first became a main driver of Lake Ontario's nutrient dynamics. Nitrogen isotope analyses of archaeological fish show that, prior to the 1830s, Lake Ontario's nitrogen cycle and the trophic ecology of its top predators had remained stable for at least 800 yrs, despite Indigenous and historical European agricultural land management across the region. An abrupt shift in the nitrogen isotope composition of Lake Ontario's fish community is evident in the early to mid-19 th century and reflects the initiation of industrial-scale forest clearance. These data show how the nitrogenous nutrient regimes of even the world's largest freshwater ecosystems can be highly sensitive to short-term watershed forest cover disturbances and indicate a profound shift in the relationship between humans and their environment.

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Deforestation caused abrupt shift in Great Lakes nitrogen cycle

Guiry

Buckley

Orchard

et al. 2020

Limnology & Oceanography

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Modeling potential impacts of three benthic invasive species on the Lake Erie food web

et al. 2019

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Assessing the potential for aquatic invasive species (AIS) to impact ecosystem function and services is an important component of ecological risk assessment. This study focuses on quantifying changes in biomass of food web groups in response to changes in AIS biomass as a function of variable AIS prey vulnerabilities (i.e. food availability) and AIS vulnerabilities to predators (i.e. predation pressure). We modified an existing Lake Erie food web model to assess the potential food web impacts of three benthic AIS (Eurasian ruffe Gymnocephalus cernua, killer

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Beyond the local fishing hole: A preliminary study of pan-regional fishing in southern Ontario (ca. 1000 CE to 1750 CE)

Hawkins

Needs‐Howarth

Orchard

et al. 2019

Journal of Archaeological Science: Reports

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Retrospective growth analysis of lake whitefish (Coregonus clupeaformis) in Lakes Erie and Ontario, 1954-2003

Cited by 7 publications

References 0 publications

Deforestation caused abrupt shift in Great Lakes nitrogen cycle

Deforestation caused abrupt shift in Great Lakes nitrogen cycle

Modeling potential impacts of three benthic invasive species on the Lake Erie food web

Beyond the local fishing hole: A preliminary study of pan-regional fishing in southern Ontario (ca. 1000 CE to 1750 CE)

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Retrospective growth analysis of lake whitefish (Coregonus clupeaformis) in Lakes Erie and Ontario, 1954-2003

Cited by 7 publications

References 0 publications

Deforestation caused abrupt shift in Great Lakes nitrogen cycle

Deforestation caused abrupt shift in Great Lakes nitrogen cycle

Modeling potential impacts of three benthic invasive species on the Lake Erie food web

Beyond the local fishing hole: A preliminary study of pan-regional fishing in southern Ontario (ca. 1000 CE to 1750 CE)

Contact Info

Product

Resources

About

Beyond the local fishing hole: A preliminary study of pan-regional fishing in southern Ontario (ca. 1000 CE to 1750 CE)