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Filters: Tags: Water, Coasts and Ice (X) > Date Range: {"choice":"year"} (X) > partyWithName: Jordan S. Read (X)

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Abstract (from Ecological Society of America): Successful management of natural resources requires local action that adapts to larger‐scale environmental changes in order to maintain populations within the safe operating space (SOS) of acceptable conditions. Here, we identify the boundaries of the SOS for a managed freshwater fishery in the first empirical test of the SOS concept applied to management of harvested resources. Walleye (Sander vitreus) are popular sport fish with declining populations in many North American lakes, and understanding the causes of and responding to these changes is a high priority for fisheries management. We evaluated the role of changing water clarity and temperature in the decline...
Water temperatures are warming in lakes, resulting in the loss of many native fish. Many Midwestern lakes “thermally stratify” resulting in warmer waters on top of deeper, cooler waters. In order to understand past change in economically valuable fisheries, it is important that managers have access to accurate estimates of the past temperatures experienced by fish. These data are invaluable for making decisions such as whether to continue stocking walleye in certain lakes how to set walleye harvest limits. This project developed new state-of-theart methods to model historical thermal habitat for thousands of lakes in the Midwest US.
Abstract (from EGU): The General Lake Model (GLM) is a onedimensional open-source code designed to simulate the hydrodynamics of lakes, reservoirs, and wetlands. GLM was developed to support the science needs of the Global Lake Ecological Observatory Network (GLEON), a network of researchers using sensors to understand lake functioning and address questions about how lakes around the world respond to climate and land use change. The scale and diversity of lake types, locations, and sizes, and the expanding observational datasets created the need for a robust community model of lake dynamics with sufficient flexibility to accommodate a range of scientific and management questions relevant to the GLEON community....