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Showing 1 to 20 of 25 for “"Laurentian Great Lakes"”.
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Exploring the potential impacts of climate change on North America's Laurentian Great Lakes tourism sector
… science methods to (1) understand how the Great Lakes tourism sector could be impacted by climate change and (2) provide some insights into how researchers can help business owners prepare for these potential impacts. Overall, the results of this work illustrate the challenges that tourism …
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Use Of Multi-Gear Sampling To Improve Abundance Estimates Of Demersal Coregonids In The Laurentian Great Lakes
… cylindraceum) play a vital role in both the Laurentian Great Lakes food webs and the commercial fishing industry. Hydroacoustic sampling has proven useful when performing stock assessments because hydroacoustics provide rapid spatial coverage as well as lower size and species selectivity …
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Distribution and ongoing threat of invasive scud (Apocorophium lacustre) to the Illinois River and Laurentian Great Lakes
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-11-15 without embargo terms
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What lies beneath? Fungal diversity at the bottom of the Great Lakes
… less is known about fungi inhabiting freshwater lakes, particularly the benthic zone that may serve as an untapped resource for fungal biodiversity. This study aimed towards understanding the diversity of fungi in one of the largest freshwater systems on Earth, the North American Laurentian Great …
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The aquatic macrophyte Vallisneria americana as a biomonitor of site quality in Great Lakes areas of concern.
… International Joint Commission) throughout the Laurentian Great Lakes of Ontario. Observations support the hypothesis that V. americana accumulates contaminants primarily from the sediments. Both the leaf-to-root fresh mass ratio, and total fresh mass of V. americana plants showed similar …
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DISPERSAL MECHANISMS OF EMBRYONIC AND LARVAL BURBOT (LOTA LOTA)
… to understanding where they may settle in the Laurentian Great Lakes. Wild <em>L. lota</em> gametes were collected from Lake Superior tributaries and fertilized. <em>L. lota </em>were reared in a laboratory setting and monitored for embryonic buoyancy changes and larval phototaxis, startle …
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Trend Reversal in Lake Michigan Contribution to Snowfall
One of the most notable ways the Laurentian Great Lakes impact the region’s climate is by augmenting snowfall in downwind locations during autumn and winter months. Among many negative consequences, this surplus of snow can cause substantial property damage to homes and can escalate the number of …
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Acoustic Telemetry Provides New Insights into the Ecology of Smallmouth Bass in Eastern Lake Ontario
… dolomieu) are a top predator native to the Laurentian Great Lakes, with a wide distribution in North America. Our understanding of Smallmouth Bass ecology is extensive, although primarily based on research from smaller inland lakes, rivers, and reservoirs. In Lake Ontario, there is an urgent …
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Dynamic chamber system for determining equilibrium phosphorus concentration (EPC0) in sediments
Eutrophication of lakes is a major driver promoting algal blooms which have presented significant social, economic and ecological challenges to humanity. Phosphorus (P) is a common limiting nutrient in North American freshwater lakes including the Laurentian Great Lakes that is transported to …
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Range expansion in the invasive Round goby (Neogobius melanostomus): behavioural and gene transcriptional components of a successful invader
… fish continuously expanding its range in the Laurentian Great Lakes and its tributaries. This thesis aims to examine: 1) the behavioural repertoire of the round goby 2) differential gene transcription for gobies “natural” and environmental captive “treatment” using brain candidate genes …
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Spatially distributed bioaccumulation risk analysis: a GIS-based tool and a case study of polychlorinated biphenyls in the Great Lakes
… food chain structure and exposure scenarios. The greatest contribution of Arc-BEST is that it enables the automated use of digital spatial data sets, which improves model creation speed and the analysis, comparison and visualization of results. Furthermore, the model was improved to consider up to …
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Applying new aquatic habitat data to manage invasive and imperiled crayfishes in North America
… crayfishes are considered invasive, and an even greater number are highly imperiled and at risk for extinction. In addition, new GIS data layers developed specifically for freshwater have recently been developed in order to better characterize freshwater habitat in modeling applications. My …
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Investigating the distribution of Nitellopsis obtusa in Ontario Lakes and its role as an ecosystem engineer
… is a non-native macrophyte introduced into the Laurentian Great Lakes in 1974. Over the last decade, increasing reports emerged for N. obtusa within lakes in the Great Lakes Basin. Despite N. obtusa being in North America since the 1970s, little is known about the ecosystem- and community-level …
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Spray Aerosols From Saltwater to Freshwater Breaking Waves
… to simulate LSA emissions from the Laurentian Great Lakes, LSAs did not contribute significantly to regional aerosol loading (< 2%), yet their impact on coarse-mode aerosols was more significant with up to a 19-fold increase in some areas. Furthermore, modeled LSAs reached up to 1000 …
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The influence of spatiotemporal variation in food web models
… and function. Lake Erie, the smallest of the Laurentian Great Lakes by volume, is divided into three bathymetrically distinct basins which are defined by unique environmental characteristics, and, as such, provides an excellent system to investigate spatio-temporal variation in food web …
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OVERLOOKED AND UNDERSTUDIED: A SURVEY OF THE SMALL AND HIDDEN FRESHWATER INVERTEBRATE TAXA (PHYLUM ROTIFERA AND SUBPHYLUM CRUSTACEA)
… are among the most abundant zooplankters in lakes yet are often overlooked, and limited information is available on their seasonal and spatial distribution within the Laurentian Great Lakes. Herein, we present data on the seasonal succession of the Lake Ontario rotifer community, with samples …
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Characterizing Patterns Of Round Goby (Neogobius Melanostomus) Distribution Using Morphometrics, Occupancy Modeling, And Population Genetics
… of round goby, Neogobius melanostomus, in the Laurentian Great Lakes has generally benefitted from continuous connections among the lakes and accessible shorelines. This dissertation (1) examined the effects of distance in affecting round goby invasion and the native pumpkinseed sunfish Lepomis …
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A Fine-scale Analysis of Spatial and Temporal Population Genetic Patterns in the Yellow Perch (<i>Perca flavescens</i>)
… high exploitation as a popular fishery in the Laurentian Great Lakes, and have not been evaluated previously for temporal consistency in genetic patterns. The objective of this thesis is to analyze the spatial and temporal genetic diversity and divergence of yellow perch spawning groups in …
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Spatiotemporal trends and relationships in the abundance, growth, and condition of common nearshore fishes of southwest Lake Michigan
The Laurentian Great Lakes are large, diverse, and dynamic ecosystems whose biotic communities have undergone significant alteration over the last two centuries due to various effects of human habitation in the basin. Currently, the most noticeable effects are those wrought by numerous invasive …
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