Tritium in Laurentian Great Lakes surface waters

Microplastic pollution in the surface waters of the Laurentian Great Lakes.

Neuston samples were collected at 21 stations during an ~700 nautical mile (~1300 km) expedition in July 2012 in the Laurentian Great Lakes of the United States using a 333 μm mesh manta trawl and analyzed for plastic debris. Although the average abundance was approximately 43,000 microplastic particles/km², station 20, downstream from two major cities, contained over 466,000 particles/km², gre...

Meteotsunamis in the Laurentian Great Lakes

The generation mechanism of meteotsunamis, which are meteorologically induced water waves with spatial/temporal characteristics and behavior similar to seismic tsunamis, is poorly understood. We quantify meteotsunamis in terms of seasonality, causes, and occurrence frequency through the analysis of long-term water level records in the Laurentian Great Lakes. The majority of the observed meteots...

Spatial and temporal trends in surface water and sediment contamination in the Laurentian Great Lakes.

Data from recent sediment and surface water surveys have been collated and mapped to illustrate the spatial distribution of contaminants across the entire Great Lakes basin. Information from historical surveys, together with data from surface water monitoring programs in three major connecting channels, has also been collated in order to evaluate temporal trends. In general, Lakes Superior and ...

Paleolimnological comparison of the Laurentian Great Lakes based on diatoms

We used cluster analysis to compare records of diatom succession recorded in dated cores from offshore basins of the five Great Lakes. Most recently deposited samples from Lakes Erie and Ontario are far removed from the cluster centroid, as are samples deposited in Lakes Huron and Michigan during forest clearance. Most recently deposited samples from Lake Superior are also clearly segregated, b...

Fisheries, Aquaculture and Exotic Species of the Laurentian Great Lakes